CA2495500A1 - Pneumoperitoneum needle - Google Patents
Pneumoperitoneum needle Download PDFInfo
- Publication number
- CA2495500A1 CA2495500A1 CA002495500A CA2495500A CA2495500A1 CA 2495500 A1 CA2495500 A1 CA 2495500A1 CA 002495500 A CA002495500 A CA 002495500A CA 2495500 A CA2495500 A CA 2495500A CA 2495500 A1 CA2495500 A1 CA 2495500A1
- Authority
- CA
- Canada
- Prior art keywords
- tubular body
- tubular
- pneumoperitoneum needle
- needle according
- tubular rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
- A61B17/3496—Protecting sleeves or inner probes; Retractable tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3474—Insufflating needles, e.g. Veress needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0807—Indication means
- A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
Abstract
Pneumoperitoneum needles for providing and/or insufflating a corporal and/or abdominal cavity are provided. The pneumoperitoneum needle can include a housing, an elongate tubular body extending from a distal surface of the housing, and an elongate hollow tubular rod slidably received within the tubular body. The tubular body preferably includes a passage formal therethrough for connection to a gas administration system. The tubular rod preferably includes a blunt distal end defining an opening, and a proximal end portion defining an opening formed therethrough.
Description
PNEUMOPERTTONEUM lYEEDLE
BACK~,tOUND
1. Tecl~ical Field The present disclosure relates to noedles and, more particularly, to pneumoperitoneum needles for introduang gaseous fluids into a peritoneal cavity for inflating the peritoneal cavity prior to laparoscopic surgery.
BACK~,tOUND
1. Tecl~ical Field The present disclosure relates to noedles and, more particularly, to pneumoperitoneum needles for introduang gaseous fluids into a peritoneal cavity for inflating the peritoneal cavity prior to laparoscopic surgery.
2. Back~owgd of Related. Art Laparoscopic and endoscopic surgery has been widely accepted as the pre~mred surgical procedure for dent of a variety of disorders that were formally treated with conventional surgical techniques.
1n Iaparoscopic procedures, surgery is performed in the interior of the abdomen (e.g., the peritoneal cavity) through a small incision extending through the peritoneal cavity will; in endoscopic procedures, surgery is performed in any hollow viscus of the body through narrow endoscopic tubes inserted through small entrance wounds in the skin.
In conjunction with laparoscopic surgery, pneumoperitonetmi gases are genially introduced into the peritoneal cavity to expand the peritoneal cavity and raise the petitoneal cavity wall away from the vital organs therein. Thereaftez, a trocar (e.g., a sharp pointed instrument) is inserted into a cannula assembly and used to puncture the in~aer lining of the peritoneal cavity. The trocar is then withdrawn and a laparoscopic surgical instrument is inserted through the cannula assembly to perform the desired sur8ery.
A conventional system used for introducing the pneumoperitoneum gases into the peritoneal cavity includes a pneumoperitoneum needle connected to a gas source via a flexible conduit. The pneumoperitoneum needle typically employed is a Veress-type needle which includes an elongated hollow outer sheath with a sharptned distal end for penetrating the inner lining of the peritoneal cavity. A spring-loadod blunt stylet is axially movable within the sheath and is distally biased so that the blunt end of the stylet retracts as the needle penetrates the inner lining and then advances to extend beyond the sharp end of the needle once the needle penetrates the inner lining of tha peritoneal cavity. The pneumoperitoneum gas administering system also typically includes at least one volume flow regulator to control the rate of gas flow through the needle.
Examples of such systems used for introducing pneumoperitoneum gases arc disclosed in U.S.
Patent 4,808,168 and U.S. Patent 5,104,381, the entire conttnts of each of which are incorporated herein by reference.
Typically, a surgeon observes the gas source to determine when the pneumoperitoneum needle has passed through the abdominal wall, into the peritoneal cavity, and the flow of gas commences.
In view of the foregoing, a continuing need exists for improved pneumoperitonevm needles for introducing gaseous fluids into a peritoneal cavity for inflating the peritoneal cavity prior to laparoscopic surgery. In particular, an indication of gas flow and/or passage into the peritoneal cavity is desired.
SL-YY
Pneumoperitoneum needles for providing and/or insufflating a corporal and/or abdominal cavity are provided. In accordance with au aspect of the present disclosure, S the pneumoperitoneum needle may include a housing, an elongate tubular body extending from a distal surface of the housing, and as elongate hollow tubular rod slidably received within the tubular body. The tubular body preferably includes a radially oriented passage formed therethrough for connection to a gas administration system. The tubular rod preferably includes a blunt distal end defining at least one distal opening (e.g., distally oriented, radially oriented and/or angularly oriented), and a proximal end portion defining at least one proximal opening (e.g., distally oriented, radially oriented andlor aagularly oriented) formed: therein.
The tubular rod includes a first position in which the opening formed in the proximal end thereof is in registration with a passage formed in the tubular body. The tubular body also includes a second position is which the opening formed in the proximal end thereof is out of registration with the passage formed in the tubular body.
The needle according to the present embodiment desin~bly further includes at least a pair of seal members disposed between the tubular body and the tubular rod. t~
first of the pair of seal members can be disposed distal of the radially oriented passage and a second of the pair of seal members can be disposed proximal of the radially oriented passage. Each seal member is preferably an O-ring fabricated from an elastomeric material. Preferably, each seal member is fixedly positioned relative to the tubular body.
1n Iaparoscopic procedures, surgery is performed in the interior of the abdomen (e.g., the peritoneal cavity) through a small incision extending through the peritoneal cavity will; in endoscopic procedures, surgery is performed in any hollow viscus of the body through narrow endoscopic tubes inserted through small entrance wounds in the skin.
In conjunction with laparoscopic surgery, pneumoperitonetmi gases are genially introduced into the peritoneal cavity to expand the peritoneal cavity and raise the petitoneal cavity wall away from the vital organs therein. Thereaftez, a trocar (e.g., a sharp pointed instrument) is inserted into a cannula assembly and used to puncture the in~aer lining of the peritoneal cavity. The trocar is then withdrawn and a laparoscopic surgical instrument is inserted through the cannula assembly to perform the desired sur8ery.
A conventional system used for introducing the pneumoperitoneum gases into the peritoneal cavity includes a pneumoperitoneum needle connected to a gas source via a flexible conduit. The pneumoperitoneum needle typically employed is a Veress-type needle which includes an elongated hollow outer sheath with a sharptned distal end for penetrating the inner lining of the peritoneal cavity. A spring-loadod blunt stylet is axially movable within the sheath and is distally biased so that the blunt end of the stylet retracts as the needle penetrates the inner lining and then advances to extend beyond the sharp end of the needle once the needle penetrates the inner lining of tha peritoneal cavity. The pneumoperitoneum gas administering system also typically includes at least one volume flow regulator to control the rate of gas flow through the needle.
Examples of such systems used for introducing pneumoperitoneum gases arc disclosed in U.S.
Patent 4,808,168 and U.S. Patent 5,104,381, the entire conttnts of each of which are incorporated herein by reference.
Typically, a surgeon observes the gas source to determine when the pneumoperitoneum needle has passed through the abdominal wall, into the peritoneal cavity, and the flow of gas commences.
In view of the foregoing, a continuing need exists for improved pneumoperitonevm needles for introducing gaseous fluids into a peritoneal cavity for inflating the peritoneal cavity prior to laparoscopic surgery. In particular, an indication of gas flow and/or passage into the peritoneal cavity is desired.
SL-YY
Pneumoperitoneum needles for providing and/or insufflating a corporal and/or abdominal cavity are provided. In accordance with au aspect of the present disclosure, S the pneumoperitoneum needle may include a housing, an elongate tubular body extending from a distal surface of the housing, and as elongate hollow tubular rod slidably received within the tubular body. The tubular body preferably includes a radially oriented passage formed therethrough for connection to a gas administration system. The tubular rod preferably includes a blunt distal end defining at least one distal opening (e.g., distally oriented, radially oriented and/or angularly oriented), and a proximal end portion defining at least one proximal opening (e.g., distally oriented, radially oriented andlor aagularly oriented) formed: therein.
The tubular rod includes a first position in which the opening formed in the proximal end thereof is in registration with a passage formed in the tubular body. The tubular body also includes a second position is which the opening formed in the proximal end thereof is out of registration with the passage formed in the tubular body.
The needle according to the present embodiment desin~bly further includes at least a pair of seal members disposed between the tubular body and the tubular rod. t~
first of the pair of seal members can be disposed distal of the radially oriented passage and a second of the pair of seal members can be disposed proximal of the radially oriented passage. Each seal member is preferably an O-ring fabricated from an elastomeric material. Preferably, each seal member is fixedly positioned relative to the tubular body.
Alternatively, it is envisioned that the tubular body may include an annular rib extending around the inner periphery thereof and/or the tubular and can include an annular rid extending around the outer periphery thereof, thereby reducing the gap distance between the tubular rod and the tubular body to thereby reduce the paaage of S ffuzd therebetween. In addition, it is envisioned that a lubricant may be provided between the tubular body and the tubular rod to thereby inhibit the flow of fluid theca.
Alternatively, it is further envisioned that a close tolerance can be provided between the tubular body and the tubular rod such that passage of fluid between the tubular body and the tubular rod is inhibited.
It is envisioned that when the tubular rod is in the first position the openang formed in the proximal end tha~eof is positioned between the first and the s~osd seal member. When the tubular rod is in the second position the radiadly oriented opening is positioned proximal of the sa;ond seal member.
Preferably, the tubular rod is biased to the first position. Accordingly, it is 1 S envisioned that the pneumoperitoneum needle may include a spring disposod betwoea the housing and the tubular rod to bias the tubular rod to the first position.
The tubular body defines a cavity between the radially oriented opining formed in the proximal end thereof and the distally oriented opening formed in the blunt end thereof. The tubular body desirably includes a distal end defining a piercing tip. The tubular rod is dimensioned such that when the tubular rod is in the first position the distal end of the tubular rod extends beyond the piercing tip of the tubular body and when the tubular rod is in the second position the piercing tip of the tubular body extends beyond the distal end of the tubular rod.
Alternatively, it is further envisioned that a close tolerance can be provided between the tubular body and the tubular rod such that passage of fluid between the tubular body and the tubular rod is inhibited.
It is envisioned that when the tubular rod is in the first position the openang formed in the proximal end tha~eof is positioned between the first and the s~osd seal member. When the tubular rod is in the second position the radiadly oriented opening is positioned proximal of the sa;ond seal member.
Preferably, the tubular rod is biased to the first position. Accordingly, it is 1 S envisioned that the pneumoperitoneum needle may include a spring disposod betwoea the housing and the tubular rod to bias the tubular rod to the first position.
The tubular body defines a cavity between the radially oriented opining formed in the proximal end thereof and the distally oriented opening formed in the blunt end thereof. The tubular body desirably includes a distal end defining a piercing tip. The tubular rod is dimensioned such that when the tubular rod is in the first position the distal end of the tubular rod extends beyond the piercing tip of the tubular body and when the tubular rod is in the second position the piercing tip of the tubular body extends beyond the distal end of the tubular rod.
The pneumoperitoneum needle according to the present embodiment may further include a gas administering system operatively connectable to the radially oriented passage formed in the tubular body. 'The gas administering system desirably delivers insuf~lation gases to the abdominal cavity. The gas administering systefln includss a source of insufllation gas, a conduit fluidly interconnecting the source of insufflation gas to the radially oriented passage formed in the tubular body, and a valve in quid communication with the vonduit for regulating the flow of insu~la~on gas through the conduit. The gas administering system can further include a gauge for meast~riag at least one of the vohune, quantity and pressure of insufflation gas delivered to the abdominal cavity.
According. to another aspect of the presennt disclosure, thd pneumoperitoneum n~edle can include an elongate tubular body, an elongate hollow tubular rod slidably disposed within the tubular body, a valve assembly at a proximal end of the tubular body and including a manifold, and a stem mounted within the manifold. The manifold and 1 S the stem being movable with respect to one another so as to foam a fluid path communicating with an indicator chamber in a first position, and a fluid path with the interior of the tubular rod, in a second position.
The pneumoperitonevm needle may include a f rst 0.ring disposed between the manifold and the stem, the first O-ring being positioned distal of a passage communicating with the indicator chamber; and a second 0.ring disposed between the msaifold and the sty, the second O-ring being positioned proximal of the passage.
Accordingly, when the tubular rod is in a first position, an opening formed in the manifold is positioned distal of the first O-ring, and when the tubular rod is in a second position, the opening formed in the manifold is positioned between the first O-ring. and the second O-ring. Each of the first and second O-rings is fixedly positioned relative to the tubular body.
Preferably, the tubular rod is biased to the first position. The pn;oumoperitoneum needle may further include a spring member operatively positioned to bias the tubular rod to the first position.
The pnGUmoperitoneum noodle may further include a housing for supporting the tubular body, the tubular body extending from a distal surface thereof.
Desirably, the spring is disposed between a distally oriental surface of the stem and a proximally oriented surface of the tubular rod. The proximal portion of the tubular rod dcflnes an d~argod portion and the spring is disposEd in the enlazgod portion.
The tubular body includes a distal and defining a piercing tip. The tubular rod is preferably dimensioned such that when the tubular rod is in the Exist position the distal J
end of the tubular rod extends beyond the piercing tip of the tubuhr body and when the tubular rod is in the second position the piercing tip of the tubular body extends beyond the distal end of the tubular rod The pneumoperitoneum needle may include a gas administering system opwatively connectable to the opening formed in the manifold. The ~s administering system being capable of delivering insufflation gases to the abdominal cavity.
The gas admiaisteling system can include a source of insuf~lation gas; a conduit fluidly interconnecting the source of insufflation gas to a port in communication with the opening in the manifold; and a valve in fluid communication with the conduit for regulating the flow of insufflation gas through the conduit. The gas administering system may further include a gauge for measuring at least one of the volume, quantity and pressure of insufflation gas delivered to the abdominal cavity.
Additional advantages will become apparent from the description which follows, taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
'Fhe present disclosure will be further described with reference to the aoc~npar.~ying drawings, wherein like refer~ce numerals refer to lie parts is the several views, and wherein:
14 FIG. 1 is a longitudinal cross-sectional view of a pneumoperitonaum needle conattucted in accordance with an embodinnent of the preset disclosure, while in a first position;
FIG. 2 is a longitudinal cross-sxtional view of a pncumop~to~ needle in accordance with the embodiment of FIG. 1, while in a second position;
15 FIG. 3 is a side elevational view of a pneim~oparitoneum noodle constructed in accordance with another embodiment of the present disclosure;
FIG. 4 is an enlarged longitudinal cross-sectional view of a pneumoperitoneum needle in accordance with the embodiment of FIG. 2;
FIG, 5 is an enlarged longitudinal cross-sectional view of a pneumoperitoaeutn 20 needle in accordance with the embodiment of FIGS. 3 and 4, illustrating a stage in the penetration of a distal end of the pneumoperitoneum needle through the abdominal wall;
FIG. 6 is an enlarged longih~dinal doss-sectional view of a pneumoperitoneum needle in accordance with the embodiment of FIGS. 3-5, illustrating a later stage in the penetration of the distal end of the pneumoperitoneum needle thmugh the abdominal wall;
FIG. 7 is an enlarged view of the area indicated as 7 of FIG. 6; and FIG. 8 is an enlarged view of the area indicated as 8 of FIG: 6.
D~TAI~.ED DESCRIPTION OF PREF~D E~BOD~NFS
frefair«i embodiments of the presently disclosed pneumopeaitoneum needles will now be descn'bed in detail with reference to the drawing figures wheaein like referoece nv~rals identify similar ar identical elements. In the drawings and in the description which follows, the term 'proximal", as is tradition, will refer to the end of the pnenrmoperitoneum needle of the prdsent disclosure which is closest to the operator, whsle the term "distal" will refer to the end of the pneurnoperitoncum needle whieh is furthest from the operator.
With reference to FIGS. 1 and 2, a pneumoperitonevm noodle, in accordance with au embodiment of the present disclosure, is shown generally as reference numeral 100.
Needle 100 serves as a conduit between a source of paeumoperitoneu~m gas "A"
(o.g., air, COz, etc) and the peritoneal cavity "C" (see FIGS. 5 and ~, wherein the pneumoperitoneum gas "A" may enter and expand peritoneal cavity "C" to provide improved access to the internal organs thenwithin during laparoscopic surgery.
While the embodiments of the following disclosure will relaxe primarily to laparoscopic surgery, it is envisioned and within the scope of the present disclosure to apply the principles disclosed herein to numerous other surgical procedures, including, and not limited to, endoscopic, arthroscopic, and the like.
Pncumoperitoneum needle 100 includes a handle or housing 102 defining a chamber 103 therein, as elongated hollow tubular body 104 operatively connected to a distal end 102a of housing 102, and a tubular rod 106, ~cluding a lumen 107 extending though, slidably received within tubular body 104. Tubular body 104 has a distal S end that is shaped for penetrating the lining of the pneumoperitonewn cavity. The distal tip of tubular body 106 is- genially blunt and defines one or more openia~.
Pneumoperitoncum needle 100 is desirably operafiveiy connected to, preferably in fluid engagement with, a pneumoperitoneum gas administering system or source of pneumoperitoneum gas (not shown). Housing 102 f;nther includes a port 130 formed therein for fluid ~mmunication with the gas ada~inist~ing system. Although port 130 is shown as being longitudinally oriented, it is envisioned and within the scope of 1'he present disclosure, that other orientations for port 130 are pos~'ble.
Pneumoperitoneum needle 100 further includes a valve assembly 140 vely disposod within chamber 103 of housing 102. Valve assembly 140 includes a manifold 1 S 142 having a distal portion 144 and a proximal portion 146 operatively secured to one another. Manifold 142 has an inner surface 171 defining a lumen 148 through manifold 142. Tubular rod 106 is operatively connected to and extends distally from distal portion 144 of manifold 142 in a manner such that lumen 107 of tubular rod 106 is in fluid communication with lumen 148 of manifold 142.
Valve assembly 140 includes a first passage 150 formed in manifold 142 and in fluid communication with lumen 148. A conduit 152 inter-connnets first passage 150 to port 130 of tubular body 104. Conduit 152 may comprise a passage, hose, tube of the like for fluidly connecting first passage 150 to port 130. Preferably, conduit 152 is fabricated from flexible tubing or the like.
Valve assembly I40 further includes a stem 170 ea~tending distally from the inner surface of housing 102. Preferably, stem 170 is slidably received in proximal portion 146 of manifold 142. A distal seal member 172 and a ~oximal seal manber 174 are provided ~md surround stem 170. Seal mennbers 172, 174 a Quid tight seal be~~vveen, the outer surface of stem 170 and the inner suiface 171 of manifold 142 defining lumen 148. Seal members 1?2,174 are preferably silicone-based O-type seals.
Preferably, seal members 172,174 are coated within amtutar grooves 176 in the outer surfaod of stem 170, or aze otherwise attached to stetn~ 170 or manifold 142. In this meager, seal members 172, 174 remain in position relative to stem 170 as manifold 142 is displaced axially therealong.
Stem 170 is sized to def ne an angular channel 180 betwaen the outer surface thereof and the inner surface 171 of manifold 142. Seal memb~a 172,174 bound the upper end and the lower end of annular channel 180.
Valve assembly 140 includes an indictor 158 defining an indicator chamber 160 thezein and having a float 162 operatively disposed therein. Preferably, indicator 158 is formed of a transparent material such that float 162 is visible by the operator.
Indicator 158 informs the user/operator of pneumoperitoneum needle 100 whether pneumoperitoneum gas "A" is flowing into peritoneal cavity "C" or nod In the embodiment shown in FIGS. 1 and 2, stem 170 defines a channel 178 thexethrough which is in fluid communication with a proximal region 159 of indicator chamber 160.
Accordingly, as will be descn'bed in greater detail below, when float 162 is in a distal region 161 of indicator chamber 160, as seen in FIG. 1, indicator 158 advises the user that pneumoperitoneum gas "A" is flowing into peritoneal cavity "C".
l~foreover, when float 162 is in a proximal region 159 of chamber 160, as seen in FIG. 2, indicator 158 advises the user that no pnaamoperitonemn. gas "A" is flowing into peritoneal cavity "C".
. Valve assembly 140 further includes a second passage 154 extending thmu~gh proximal portion 146 of meniifdld 142 and communicating with annular channel 180. A
conduit 1 S6 is provided for fluidly inter-cotmecting second passage 1 S4 to a distal region of 160. Conduit 1 S6 may comprise a passage, hose, tube or the like for fluidly conr~eeting second passage 1 S4 and indicator chamber 160.
The housing, valve assembly, tabular body, tubular rod, and other parts may be formod from appropriate polymeric or metal materials. For example, tha housing amid valve assembly may be formed from poly carbonate, whereas the tubular body and tubular rod are desirably stainless steel.
Valve assambly 140 includes s biasing member 182 diaposod betwoan stem 170 and manifold 142. Preferably, biasing member 182 is in the form of a coil spring, however, other types of biasing mennbers, contemplated by those skilled in the art, are understood to be included herein. Biasing member 182 is desirably mounted be~we~ a distally facing surface of stem 170 and the distal portion 144 of manifold 142, as shown.
Biasing m~ber 182 tends to maintain manifold 142 of valve assembly 140 in a distal-most or first position, as seen in FIG. 1. In this position, as shown in FIG.
1, distal seal member 172 is positioned distally of first passage 150. Tubular rod 106 is also in a distal-most position so that blunt distal tip 206a thereof is exposed and/or other extends distally from tubular body 104.
Valve assembly 140 of pneumopcritonevm needle 100 is initiaslly in the first position in which fluid flow through the needle is permitted. First passage 150is cor~nected to lumen 148 of manifold 142 and channel 178 of stem 170. Lien 148 00 -rnmunica~tes with lumen 107 of tubular rod 106. Charm~l 178 communic~ with region 159 of indicator chamber 160 to urge float 162 toward the distal region of indicator chamber 160.
Valve assembly 140 can be urgai from the first position to a second position in vErh~ch first passage 150 is disposed proximally of distal. seal 172, as shown in FIG. 2. In the second position, fluid flow through the needle is blocked. Valve assembly 140 is urged to the second position by overcoming the bias of biasing mennbor 182 and displacing tabular rod 106 in a proxima~i direction rolative to tabular body i04. Whr.~a valve assanbly 140 is in the second position, fast passage 150 is in flwid communication with annular channel 180 and, in tam, in fluid communication with second passage 154.
t)uring use of pnevmoperitonevm needle 100, when tip 210 (seat FIGS. 2-f and 8) of tubular body 104 is being inserted peritoneal cavity "~" sect thus being pressed against the skin of the patient, distal tip 106a of tubular rod 106 is urged into tubular body 104 and, in turn, valve assembly 140 is urged from the first position to the second position.
Whey valve assembly 140 is in the second position, gas "A" firm a gas administering system or source (not shown) eaters housing 102 through port 130. Gas "A" then flows through conduit 152, through first passage 150 and into annular channel 180 of manifold 142. Gas "A" then continues thmugh annular channel 180 and out second passage 154, through conduit 156 and into a distal region 161 of indicator chamber 160 to thereby urge andlor displace float 162 in a proximal direction. Positioning of float 162 in the proximal region of indicator chamber 160 indicates to the user that gas "A" is not flowing into peritoneal cavity "C".
Once tip 210 of tubular bay 104 completely pthe abdominal wall of the patient and distal tip 106a of tubular rod 106 is no longer substantially obstiuc~ed, biasing member 182 urges valve assembly 140 from the second position to xhe first position. In the first position, gas flows through first passage 150 and lumen 148 to lumen 107 of tubular rod 106, to supply gas to peritoneal cavity "C". Gas also flows from first passage 150 to channel 178, which communicates with proximal region 159 to position float 162 in the distal region 161 of indicator chamber 160. In this position, float 162 incheates to the user that gas "A" is flowing into peritoneal cavity "C".
3~ing now to FIGg. 3-8, and in particular to FIB. 3 and 4, a pneuanoperitoaeunn needle in acoordanee with another emb4diment of the pit disclosure is shown generally as refer~ce numeral 200.
Pneumoperitoneum needle 200 inclvdma a handle or houaiag 202, sa elongated hollow tubular body 204 operatively concocted to a forward end 202a of housing 202, and a tubular rod 206 slidably received within tubular body 204.
Pawmoperitonevm needle 200 is desirably operatively conaecfed to, preferably irl fluid engagement with a pnevmoperitoneum gas administering system 208 or other source of gas. Tubule body 204 includes a piercing edge or tip 210 formed at a distal end 204a thereof for pene~ating the inner lining of the peritoneal cavity. 'I~bular body 204 further includes a radially oriented passage 230 formed therein for fluid communication with gas administering system 208, as will be descn'bed in greaxer detail below. Although passage 230 is shown as being radially oriented, it is envisioned and within the scope of the present disclosure, that other orientations for passages 230 are possible. One skilled in the art would readily understand that passages 230 can be longitudinally oriented, aagularly oriented, tangentially oriented sad the like.
'I~b~alar rod 206 includes a blunt distal tip 206a, a proximal end portion 206b receivable in a cavity 202b formal in housing 202, and defines an elongate, longitudinally extending cavity 207c therethrough. Distal tip 206a of tabular rod 206 desnes an opening 207a formed therein, which is, is this embodiment, formed in a distally oriented direction, as seen in FI(3r8. 4-6. However, one or more openings may be provided in distal tip 206x, including opt in a radially-oriented direction .Al~hoagh opening 207a is shown as being distally oriented, it is envisioned and within the scope of the present disclosure, flat other orientations for opening 207a are possible.
Ond skilled in the art would readily understand that openings 207a can be radially oriented, angularly oriented, tangentially oriented and the like.
Preferably, as seen in FIGS. 3-g, tubular rod 206 is sized such that distal tip 206a thereof extends beyond piercing edge 210 of tubular body 204 when tubular rod 106 is in a first or extended position. Tubular rod 206 further includes a radially oriented opening 207b formed in proximal emd portion 2106b thereof. Desirably, an end plate 220 is positioned against proximal end portion 206b in such a manner to close offpmximal end portion 206b and to inhibit passage and/or escape of gases between end plate 220 and proximal end portion 206b of tubular rod 206. Alternatively, it is envisioned that tubular rod 206 can be manufactiu~ed having a closed or sealed proximal end portion 206b defined by a surface (not shown) which is substantially transversely oriented with respect to the longitudinal axis of pneumoperitoneum needle 200.
Tubular rod 206 is adapted to reciprocal longitudinal movement from a first or exta~ded position, as shown in FIG. 6, to a second or ~ position, as shown in FIG.
5, and is biased to the fast or extended position under the influence of a coil spring 222.
Spring 222 is disposed within cavity 202b of housing 202 such that one end of spring 222 S is in contact with a proximal surface 220a of end plate 224 and the opposite end of spring 222 is in contact with an inner distally oriented surf~uce 202c of cavity 202b of (sousing 242.
Preferably, in use, when tubular rod 206 is in the first position, radially oriented opening 207b formed therein substantially aligns with and/or substantially comes into registration with radially oriented passage 230 of tubular body 204.
Accordingly, as will be descn'bed in detail below, when tubular rod 206 is in the fast position, pn~mtonelmn gas is allowed to enter cavity 207c. In addition, when tubular rod 206 is in the second position, radially oriented opening 20?b formed therein is out of alignment and/or out of registration with radislly oriented passage 230 of tubular body 204. Accordingly, as will be described in detail below, whoa tubular rod 206 is in the second position, pneumoperitonevm gas is prevented from entering cavity 207c.
Preferably, housing 202 and/or tubular rod 206 can be fabricated from a polymeric material such as an acrylic, polystyrene, polycarbonate and styrene-acrylonitrile (SAl~ polymer. In a preferred embodiment, housing 202 is molded as a single unit. Tubular body 204 is preferably fabricated from a hardened biocompafiible material such as stainless steel or titanium.
As best seen in FIGS. 6-8, pneumoperitoneum needle 200 further includes a plurality of seals, preferably at least a pair of seals 224, 226 disposed between tubular body 204 and tubular rod 206. Seals 224, 226 arc preferably O-ring type seals or gaskets and preferably completely surround the perimeter andlor periphery of tubular rod 206.
Seals 224, 226 are preferably fabricated from a resilient elastomeric material, such as, for eacamplc, a rubber based material, a silicone based material, or the like.
Seals 224, 226 arc of the type which inhibit and/or otherwise prevent passage of gases along and through the space between tubular body 204 and tubular rod 206.
Desirably, seals 224, 226 arc secured to the inner surface of tubular body 204 in such a manner such that why tubular rod 206 is aually displaced relative to tubular body 2A4, seals 224, 226 remain in position relative to tubular body 204 and allow tubular rod 206 to slide thereacross. Preferably, a bonding agent, adhesive or the like can be used to fi~cedly secure seals 224, 226 to the inner surFace of tubular body 204.
Alternatively, it is cnvi~oned that the inner surface of tubular body 204 is provided with anm~lar grooves (not shown), configured and/or otherwise dimensioned to receive a rive seal 224, 226 therein. In this manner, the annular grooves inhs'bit movement of seals 224, 226 relative to tubular body 204.
Preferably, as will be described in greater detail below, one of seals 224, 226 is disposed distal of radially oriented passage 230 of tubular body 204 while the other of seals 224, 226 is disposed proximally of radially oriented passage 230 of tubular body 204. In addition, seals 224, 226 are positioned such that when tubular rod 206 is in the first position, radially oriented opening 207b formed therein is positioned between seals 224, 226 (see FIG. 5) and is substantially aligned with radially oriented passage 230 of tubular body 204, as described above. Moreover, seals 224, 226 are positioned such that when tubular rod 206 is in the second position, radially oriented opening 207b formed therein is positioned proximal of the proximal-most seal 224, 226. While in the second position, proximal-most seal 224, 226 inhibits and/or otherwise prevents passage of pn.eumoperitoneum gas from radially oriented passage 230 of tubular body 204, through radially oriented opening 2U7b of tubular rod 206 and into cavity 207c of tubular rod 206.
While 4 ring type seals 224, 226 are preferred, as seen in FIG. 7, it is envisioned that seals 224, 226 can include an annular rib 234 extending around the inner periphery of tubular body 204 andfor seals 224, 226 ran include m annular rib 136 extending around thcs outer periphery of tubular rod 206, they reducing the gap distance between tubular rod 206 and tubular body 204 to thereby inhibit the passage of fluid therebctween. In addition, it is envisioned that a lubricant, such as a silicone based substance 238 (e.g., gr~e, gel or the like) can be provided betwveen tubular body 204 and tubular rod 206 to thereby inhibit the flow of fluid therebetwoen.
Alternatively, it is envisioned that a close tolerance can be provided between tubular body 204 and tubule rod 206 such that passage of fluid bdtween tubular.body 204 and tubular rod 206 is iahtbited.
Gas administering system 208 regulates the amount of insulation gases, e.g., pneumoperitoneum gases, flowing through tubular body 204 and into the peritoneal cavity. Gas administering system 208 may be any conventional system suitable for this purpose. Gas administering system 208 preferably includes a source of insufflation gas "A"; e.g., pneumoperitoneum gas, a conduit 212 fluidly interconnecting the source of gas "A" to pneumoperitoneum needle 200 to carry the insufflation gas to the needle de~ination, and a valve 214 (e.g., a stop-cock valve or the like) operatively associated (e.g., in fluid communication) with conduit 212 for regulating the flow of gas through co~uit 212. Desirably, gas administering system 206 includes a gauge or indicator 216 operatively associated (i.e., in fluid co~nuuication) with conduit 212 for measuring the do~~e, guantity and/or pressure of gas delivered to peritoneal cavity "C".
With particular reference to FIGS. S and 6, a method of using operitoneum S needle 200 will now be described. In use, as seen in FIG. 5, pneumopaitoneum needle 200 is plaaced against the surfa~Ce of 6he paw's abdominal area "T" such that blunt distal tip 206a of tubular rod 206 contacts the su,Ff~e of abdominal area 'T". With distal tip 206av initially engaging and/or contacting the surface of abdominal area "T", distal force, as indicated by arrow "x', is applied to pneumoperitone~mm needle 200.
Pressing aadlor advancing pneumoperitoneom needle Z00 distally toward the surface of abd~ommal area 'T", in the direction of snow "X", reswlts irr tubular rod 206 being forced from the first position t~ the second position, thereby using spring ~d22 and ping piecing edge 210 of tubular body 204 in contact with the of abdominal area '~'". Whrn in the s~ocond potion, flaw of pneumopexitoua~m gas, through cavity 207c and et~
distally 1 S oriEnted opdiing 207a, is at least substantially, preferably completely, stopped.
Continual distal force is applied to ~pneumopaitone~ needle 200 so that pien"ang edge 210 pau~at~ the surface of abdominal area '°T" and enters abdominal cavity "C".
As sew in FIG. 6, once piercing edge 210 enters abdominal cavity "C°', tubular rod 206 moves distally, to its first position, under the influence of spring 222. In this position, radially oriented opening 207b of tubular rod 206 is brought into substantial alignment and/or registn~tion with radially oriented passage 230 of tubular body 204.
Conduit 212 can then be connected to passage 230 of tubular body 204 and valve 214 opened to permit the pneumoperitoncum gas to flow (as shown by arrows "F") out from the source of gas "A", through conduit 212, through passage 230, through opening 207b, through cavity 207c, through opening 207a foamed in distal tip 106a of fiubular rod.
206, and into abdominal cavity "C".
Abdominal cavity "C" is insufflated with pneumopttitoneum gas until gauga 216 reavches a particular pradotaminod level. Prefrerably, pne~operitonaum gas is in~luceci at a su~cieut volume and pr.~e to distend abdominal cavity "C" to a corJSid~abl~ eXtent: Once abdominal cavity "C" has boon distendded by a dcsirod andlor a sul~cimt amount, vatvc 214 is closed until additional pnevma~toaeum gas. is needed to ro-distend abdominal cavity "C", or in the altamative, valve 214 is tightened to thereby reduce the rats of introduction of pneumopcritoneum gas into abdomiaal cavity "C" and they maintain abdominal cavity "C" at a uniform dist~dod condition. It should be apparent that valve 214 can be adjusto~i as nthroughout the surgical procure to irtsufilate and/or deflate abdominal cavity "C".
Although pneumoperitoneum n~les 200 has boon d~ribod in tams of specified embodiments which are sEt forth in detail above, it should be understood that this is by illustration only and that pneumoperitoneum needle 200 is not necessarily limited to the embodiments disclosed herein, since alternative embodiments sad operating techniques will becomes apparent to those skilled in he art in view of the disclosure.
A~dingly, modifications are contemplated which can be made without departing fiom the spirit of the described pneumoperitoneum needle. For example, as seen in FIGS. 4-6, it is envisioned that proximal end portion 206b of tubular rod 206 is flared as compared to distal tip 206a (i.e., has a larger diameter as compared to the diameter of a distal portion thereof). In addition, tubular body 204 can includE a flared pro~a~imal end portion 204b to accommodate flared proximal end portion 206b of tubular rod 206. As such, in use, flared proximal end portion 206b of tubular and 206 abuts against the non-flared distal end portion 204a of tubular body 204, when tubular rod 206 is in the fast position, thereby effectively limiting the distal advancemcnt of tubular rod 2016 relative to tubular body 204. In other embodiments, the tubular and aadJor the tubular body lave a constant diameter, or other shape.
It is further envisioned that the outer surface of tubular rod 206 can include a element or member configured and adapted to engage and/or mate with a complementary member provided on the inner ~ of tubular body 204 such that tubular rod 206 is inb:~ited aadtor otherwise prevented il~om rotating about the longittudinal axis that thereby placing opening 207b of tubular road 206 out of radial regi~stratioa with passage 230 of tubular body 204.
While opening 207a formed is distal tip 206a is desirably distally grid, as 1 S seen in FIG. 4, it is envisioned and within the scope of th,e present disclosure that opening 207a can be replaced with at least one radially oriented opening 240 formed in distal tip 206a of tubular rod 206, as shown in FIG. 8. It is further envisioned that tubular and 206 can include both a distally oriented opening 207a and at least one radially oriented opening 240 (not shown). It is also envisioned that openings 240 can be oriented at an angle with respect to a longitudinal axis of tubular rod 206 (not shown).
While the above-disclosure relates primarily to a pneumoperitoncum needle configured to deliver an insuf~lation gas (e.g., pneumoperitoneum gas, COz and the like) to the abdominal cavity, it is envisioned and within the scope of the present disclosure that tho pneumoperitoneum needle can deliver any insufflation type fluid to the abdominal cavity, including and not limited to, saline, water; aqudous solutions aad the likE.
It is envisioned that various other modi8.cations fail within the scope of the preae'Bt disclosure without departing from the spirit of the same.
According. to another aspect of the presennt disclosure, thd pneumoperitoneum n~edle can include an elongate tubular body, an elongate hollow tubular rod slidably disposed within the tubular body, a valve assembly at a proximal end of the tubular body and including a manifold, and a stem mounted within the manifold. The manifold and 1 S the stem being movable with respect to one another so as to foam a fluid path communicating with an indicator chamber in a first position, and a fluid path with the interior of the tubular rod, in a second position.
The pneumoperitonevm needle may include a f rst 0.ring disposed between the manifold and the stem, the first O-ring being positioned distal of a passage communicating with the indicator chamber; and a second 0.ring disposed between the msaifold and the sty, the second O-ring being positioned proximal of the passage.
Accordingly, when the tubular rod is in a first position, an opening formed in the manifold is positioned distal of the first O-ring, and when the tubular rod is in a second position, the opening formed in the manifold is positioned between the first O-ring. and the second O-ring. Each of the first and second O-rings is fixedly positioned relative to the tubular body.
Preferably, the tubular rod is biased to the first position. The pn;oumoperitoneum needle may further include a spring member operatively positioned to bias the tubular rod to the first position.
The pnGUmoperitoneum noodle may further include a housing for supporting the tubular body, the tubular body extending from a distal surface thereof.
Desirably, the spring is disposed between a distally oriental surface of the stem and a proximally oriented surface of the tubular rod. The proximal portion of the tubular rod dcflnes an d~argod portion and the spring is disposEd in the enlazgod portion.
The tubular body includes a distal and defining a piercing tip. The tubular rod is preferably dimensioned such that when the tubular rod is in the Exist position the distal J
end of the tubular rod extends beyond the piercing tip of the tubuhr body and when the tubular rod is in the second position the piercing tip of the tubular body extends beyond the distal end of the tubular rod The pneumoperitoneum needle may include a gas administering system opwatively connectable to the opening formed in the manifold. The ~s administering system being capable of delivering insufflation gases to the abdominal cavity.
The gas admiaisteling system can include a source of insuf~lation gas; a conduit fluidly interconnecting the source of insufflation gas to a port in communication with the opening in the manifold; and a valve in fluid communication with the conduit for regulating the flow of insufflation gas through the conduit. The gas administering system may further include a gauge for measuring at least one of the volume, quantity and pressure of insufflation gas delivered to the abdominal cavity.
Additional advantages will become apparent from the description which follows, taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
'Fhe present disclosure will be further described with reference to the aoc~npar.~ying drawings, wherein like refer~ce numerals refer to lie parts is the several views, and wherein:
14 FIG. 1 is a longitudinal cross-sectional view of a pneumoperitonaum needle conattucted in accordance with an embodinnent of the preset disclosure, while in a first position;
FIG. 2 is a longitudinal cross-sxtional view of a pncumop~to~ needle in accordance with the embodiment of FIG. 1, while in a second position;
15 FIG. 3 is a side elevational view of a pneim~oparitoneum noodle constructed in accordance with another embodiment of the present disclosure;
FIG. 4 is an enlarged longitudinal cross-sectional view of a pneumoperitoneum needle in accordance with the embodiment of FIG. 2;
FIG, 5 is an enlarged longitudinal cross-sectional view of a pneumoperitoaeutn 20 needle in accordance with the embodiment of FIGS. 3 and 4, illustrating a stage in the penetration of a distal end of the pneumoperitoneum needle through the abdominal wall;
FIG. 6 is an enlarged longih~dinal doss-sectional view of a pneumoperitoneum needle in accordance with the embodiment of FIGS. 3-5, illustrating a later stage in the penetration of the distal end of the pneumoperitoneum needle thmugh the abdominal wall;
FIG. 7 is an enlarged view of the area indicated as 7 of FIG. 6; and FIG. 8 is an enlarged view of the area indicated as 8 of FIG: 6.
D~TAI~.ED DESCRIPTION OF PREF~D E~BOD~NFS
frefair«i embodiments of the presently disclosed pneumopeaitoneum needles will now be descn'bed in detail with reference to the drawing figures wheaein like referoece nv~rals identify similar ar identical elements. In the drawings and in the description which follows, the term 'proximal", as is tradition, will refer to the end of the pnenrmoperitoneum needle of the prdsent disclosure which is closest to the operator, whsle the term "distal" will refer to the end of the pneurnoperitoncum needle whieh is furthest from the operator.
With reference to FIGS. 1 and 2, a pneumoperitonevm noodle, in accordance with au embodiment of the present disclosure, is shown generally as reference numeral 100.
Needle 100 serves as a conduit between a source of paeumoperitoneu~m gas "A"
(o.g., air, COz, etc) and the peritoneal cavity "C" (see FIGS. 5 and ~, wherein the pneumoperitoneum gas "A" may enter and expand peritoneal cavity "C" to provide improved access to the internal organs thenwithin during laparoscopic surgery.
While the embodiments of the following disclosure will relaxe primarily to laparoscopic surgery, it is envisioned and within the scope of the present disclosure to apply the principles disclosed herein to numerous other surgical procedures, including, and not limited to, endoscopic, arthroscopic, and the like.
Pncumoperitoneum needle 100 includes a handle or housing 102 defining a chamber 103 therein, as elongated hollow tubular body 104 operatively connected to a distal end 102a of housing 102, and a tubular rod 106, ~cluding a lumen 107 extending though, slidably received within tubular body 104. Tubular body 104 has a distal S end that is shaped for penetrating the lining of the pneumoperitonewn cavity. The distal tip of tubular body 106 is- genially blunt and defines one or more openia~.
Pneumoperitoncum needle 100 is desirably operafiveiy connected to, preferably in fluid engagement with, a pneumoperitoneum gas administering system or source of pneumoperitoneum gas (not shown). Housing 102 f;nther includes a port 130 formed therein for fluid ~mmunication with the gas ada~inist~ing system. Although port 130 is shown as being longitudinally oriented, it is envisioned and within the scope of 1'he present disclosure, that other orientations for port 130 are pos~'ble.
Pneumoperitoneum needle 100 further includes a valve assembly 140 vely disposod within chamber 103 of housing 102. Valve assembly 140 includes a manifold 1 S 142 having a distal portion 144 and a proximal portion 146 operatively secured to one another. Manifold 142 has an inner surface 171 defining a lumen 148 through manifold 142. Tubular rod 106 is operatively connected to and extends distally from distal portion 144 of manifold 142 in a manner such that lumen 107 of tubular rod 106 is in fluid communication with lumen 148 of manifold 142.
Valve assembly 140 includes a first passage 150 formed in manifold 142 and in fluid communication with lumen 148. A conduit 152 inter-connnets first passage 150 to port 130 of tubular body 104. Conduit 152 may comprise a passage, hose, tube of the like for fluidly connecting first passage 150 to port 130. Preferably, conduit 152 is fabricated from flexible tubing or the like.
Valve assembly I40 further includes a stem 170 ea~tending distally from the inner surface of housing 102. Preferably, stem 170 is slidably received in proximal portion 146 of manifold 142. A distal seal member 172 and a ~oximal seal manber 174 are provided ~md surround stem 170. Seal mennbers 172, 174 a Quid tight seal be~~vveen, the outer surface of stem 170 and the inner suiface 171 of manifold 142 defining lumen 148. Seal members 1?2,174 are preferably silicone-based O-type seals.
Preferably, seal members 172,174 are coated within amtutar grooves 176 in the outer surfaod of stem 170, or aze otherwise attached to stetn~ 170 or manifold 142. In this meager, seal members 172, 174 remain in position relative to stem 170 as manifold 142 is displaced axially therealong.
Stem 170 is sized to def ne an angular channel 180 betwaen the outer surface thereof and the inner surface 171 of manifold 142. Seal memb~a 172,174 bound the upper end and the lower end of annular channel 180.
Valve assembly 140 includes an indictor 158 defining an indicator chamber 160 thezein and having a float 162 operatively disposed therein. Preferably, indicator 158 is formed of a transparent material such that float 162 is visible by the operator.
Indicator 158 informs the user/operator of pneumoperitoneum needle 100 whether pneumoperitoneum gas "A" is flowing into peritoneal cavity "C" or nod In the embodiment shown in FIGS. 1 and 2, stem 170 defines a channel 178 thexethrough which is in fluid communication with a proximal region 159 of indicator chamber 160.
Accordingly, as will be descn'bed in greater detail below, when float 162 is in a distal region 161 of indicator chamber 160, as seen in FIG. 1, indicator 158 advises the user that pneumoperitoneum gas "A" is flowing into peritoneal cavity "C".
l~foreover, when float 162 is in a proximal region 159 of chamber 160, as seen in FIG. 2, indicator 158 advises the user that no pnaamoperitonemn. gas "A" is flowing into peritoneal cavity "C".
. Valve assembly 140 further includes a second passage 154 extending thmu~gh proximal portion 146 of meniifdld 142 and communicating with annular channel 180. A
conduit 1 S6 is provided for fluidly inter-cotmecting second passage 1 S4 to a distal region of 160. Conduit 1 S6 may comprise a passage, hose, tube or the like for fluidly conr~eeting second passage 1 S4 and indicator chamber 160.
The housing, valve assembly, tabular body, tubular rod, and other parts may be formod from appropriate polymeric or metal materials. For example, tha housing amid valve assembly may be formed from poly carbonate, whereas the tubular body and tubular rod are desirably stainless steel.
Valve assambly 140 includes s biasing member 182 diaposod betwoan stem 170 and manifold 142. Preferably, biasing member 182 is in the form of a coil spring, however, other types of biasing mennbers, contemplated by those skilled in the art, are understood to be included herein. Biasing member 182 is desirably mounted be~we~ a distally facing surface of stem 170 and the distal portion 144 of manifold 142, as shown.
Biasing m~ber 182 tends to maintain manifold 142 of valve assembly 140 in a distal-most or first position, as seen in FIG. 1. In this position, as shown in FIG.
1, distal seal member 172 is positioned distally of first passage 150. Tubular rod 106 is also in a distal-most position so that blunt distal tip 206a thereof is exposed and/or other extends distally from tubular body 104.
Valve assembly 140 of pneumopcritonevm needle 100 is initiaslly in the first position in which fluid flow through the needle is permitted. First passage 150is cor~nected to lumen 148 of manifold 142 and channel 178 of stem 170. Lien 148 00 -rnmunica~tes with lumen 107 of tubular rod 106. Charm~l 178 communic~ with region 159 of indicator chamber 160 to urge float 162 toward the distal region of indicator chamber 160.
Valve assembly 140 can be urgai from the first position to a second position in vErh~ch first passage 150 is disposed proximally of distal. seal 172, as shown in FIG. 2. In the second position, fluid flow through the needle is blocked. Valve assembly 140 is urged to the second position by overcoming the bias of biasing mennbor 182 and displacing tabular rod 106 in a proxima~i direction rolative to tabular body i04. Whr.~a valve assanbly 140 is in the second position, fast passage 150 is in flwid communication with annular channel 180 and, in tam, in fluid communication with second passage 154.
t)uring use of pnevmoperitonevm needle 100, when tip 210 (seat FIGS. 2-f and 8) of tubular body 104 is being inserted peritoneal cavity "~" sect thus being pressed against the skin of the patient, distal tip 106a of tubular rod 106 is urged into tubular body 104 and, in turn, valve assembly 140 is urged from the first position to the second position.
Whey valve assembly 140 is in the second position, gas "A" firm a gas administering system or source (not shown) eaters housing 102 through port 130. Gas "A" then flows through conduit 152, through first passage 150 and into annular channel 180 of manifold 142. Gas "A" then continues thmugh annular channel 180 and out second passage 154, through conduit 156 and into a distal region 161 of indicator chamber 160 to thereby urge andlor displace float 162 in a proximal direction. Positioning of float 162 in the proximal region of indicator chamber 160 indicates to the user that gas "A" is not flowing into peritoneal cavity "C".
Once tip 210 of tubular bay 104 completely pthe abdominal wall of the patient and distal tip 106a of tubular rod 106 is no longer substantially obstiuc~ed, biasing member 182 urges valve assembly 140 from the second position to xhe first position. In the first position, gas flows through first passage 150 and lumen 148 to lumen 107 of tubular rod 106, to supply gas to peritoneal cavity "C". Gas also flows from first passage 150 to channel 178, which communicates with proximal region 159 to position float 162 in the distal region 161 of indicator chamber 160. In this position, float 162 incheates to the user that gas "A" is flowing into peritoneal cavity "C".
3~ing now to FIGg. 3-8, and in particular to FIB. 3 and 4, a pneuanoperitoaeunn needle in acoordanee with another emb4diment of the pit disclosure is shown generally as refer~ce numeral 200.
Pneumoperitoneum needle 200 inclvdma a handle or houaiag 202, sa elongated hollow tubular body 204 operatively concocted to a forward end 202a of housing 202, and a tubular rod 206 slidably received within tubular body 204.
Pawmoperitonevm needle 200 is desirably operatively conaecfed to, preferably irl fluid engagement with a pnevmoperitoneum gas administering system 208 or other source of gas. Tubule body 204 includes a piercing edge or tip 210 formed at a distal end 204a thereof for pene~ating the inner lining of the peritoneal cavity. 'I~bular body 204 further includes a radially oriented passage 230 formed therein for fluid communication with gas administering system 208, as will be descn'bed in greaxer detail below. Although passage 230 is shown as being radially oriented, it is envisioned and within the scope of the present disclosure, that other orientations for passages 230 are possible. One skilled in the art would readily understand that passages 230 can be longitudinally oriented, aagularly oriented, tangentially oriented sad the like.
'I~b~alar rod 206 includes a blunt distal tip 206a, a proximal end portion 206b receivable in a cavity 202b formal in housing 202, and defines an elongate, longitudinally extending cavity 207c therethrough. Distal tip 206a of tabular rod 206 desnes an opening 207a formed therein, which is, is this embodiment, formed in a distally oriented direction, as seen in FI(3r8. 4-6. However, one or more openings may be provided in distal tip 206x, including opt in a radially-oriented direction .Al~hoagh opening 207a is shown as being distally oriented, it is envisioned and within the scope of the present disclosure, flat other orientations for opening 207a are possible.
Ond skilled in the art would readily understand that openings 207a can be radially oriented, angularly oriented, tangentially oriented and the like.
Preferably, as seen in FIGS. 3-g, tubular rod 206 is sized such that distal tip 206a thereof extends beyond piercing edge 210 of tubular body 204 when tubular rod 106 is in a first or extended position. Tubular rod 206 further includes a radially oriented opening 207b formed in proximal emd portion 2106b thereof. Desirably, an end plate 220 is positioned against proximal end portion 206b in such a manner to close offpmximal end portion 206b and to inhibit passage and/or escape of gases between end plate 220 and proximal end portion 206b of tubular rod 206. Alternatively, it is envisioned that tubular rod 206 can be manufactiu~ed having a closed or sealed proximal end portion 206b defined by a surface (not shown) which is substantially transversely oriented with respect to the longitudinal axis of pneumoperitoneum needle 200.
Tubular rod 206 is adapted to reciprocal longitudinal movement from a first or exta~ded position, as shown in FIG. 6, to a second or ~ position, as shown in FIG.
5, and is biased to the fast or extended position under the influence of a coil spring 222.
Spring 222 is disposed within cavity 202b of housing 202 such that one end of spring 222 S is in contact with a proximal surface 220a of end plate 224 and the opposite end of spring 222 is in contact with an inner distally oriented surf~uce 202c of cavity 202b of (sousing 242.
Preferably, in use, when tubular rod 206 is in the first position, radially oriented opening 207b formed therein substantially aligns with and/or substantially comes into registration with radially oriented passage 230 of tubular body 204.
Accordingly, as will be descn'bed in detail below, when tubular rod 206 is in the fast position, pn~mtonelmn gas is allowed to enter cavity 207c. In addition, when tubular rod 206 is in the second position, radially oriented opening 20?b formed therein is out of alignment and/or out of registration with radislly oriented passage 230 of tubular body 204. Accordingly, as will be described in detail below, whoa tubular rod 206 is in the second position, pneumoperitonevm gas is prevented from entering cavity 207c.
Preferably, housing 202 and/or tubular rod 206 can be fabricated from a polymeric material such as an acrylic, polystyrene, polycarbonate and styrene-acrylonitrile (SAl~ polymer. In a preferred embodiment, housing 202 is molded as a single unit. Tubular body 204 is preferably fabricated from a hardened biocompafiible material such as stainless steel or titanium.
As best seen in FIGS. 6-8, pneumoperitoneum needle 200 further includes a plurality of seals, preferably at least a pair of seals 224, 226 disposed between tubular body 204 and tubular rod 206. Seals 224, 226 arc preferably O-ring type seals or gaskets and preferably completely surround the perimeter andlor periphery of tubular rod 206.
Seals 224, 226 are preferably fabricated from a resilient elastomeric material, such as, for eacamplc, a rubber based material, a silicone based material, or the like.
Seals 224, 226 arc of the type which inhibit and/or otherwise prevent passage of gases along and through the space between tubular body 204 and tubular rod 206.
Desirably, seals 224, 226 arc secured to the inner surface of tubular body 204 in such a manner such that why tubular rod 206 is aually displaced relative to tubular body 2A4, seals 224, 226 remain in position relative to tubular body 204 and allow tubular rod 206 to slide thereacross. Preferably, a bonding agent, adhesive or the like can be used to fi~cedly secure seals 224, 226 to the inner surFace of tubular body 204.
Alternatively, it is cnvi~oned that the inner surface of tubular body 204 is provided with anm~lar grooves (not shown), configured and/or otherwise dimensioned to receive a rive seal 224, 226 therein. In this manner, the annular grooves inhs'bit movement of seals 224, 226 relative to tubular body 204.
Preferably, as will be described in greater detail below, one of seals 224, 226 is disposed distal of radially oriented passage 230 of tubular body 204 while the other of seals 224, 226 is disposed proximally of radially oriented passage 230 of tubular body 204. In addition, seals 224, 226 are positioned such that when tubular rod 206 is in the first position, radially oriented opening 207b formed therein is positioned between seals 224, 226 (see FIG. 5) and is substantially aligned with radially oriented passage 230 of tubular body 204, as described above. Moreover, seals 224, 226 are positioned such that when tubular rod 206 is in the second position, radially oriented opening 207b formed therein is positioned proximal of the proximal-most seal 224, 226. While in the second position, proximal-most seal 224, 226 inhibits and/or otherwise prevents passage of pn.eumoperitoneum gas from radially oriented passage 230 of tubular body 204, through radially oriented opening 2U7b of tubular rod 206 and into cavity 207c of tubular rod 206.
While 4 ring type seals 224, 226 are preferred, as seen in FIG. 7, it is envisioned that seals 224, 226 can include an annular rib 234 extending around the inner periphery of tubular body 204 andfor seals 224, 226 ran include m annular rib 136 extending around thcs outer periphery of tubular rod 206, they reducing the gap distance between tubular rod 206 and tubular body 204 to thereby inhibit the passage of fluid therebctween. In addition, it is envisioned that a lubricant, such as a silicone based substance 238 (e.g., gr~e, gel or the like) can be provided betwveen tubular body 204 and tubular rod 206 to thereby inhibit the flow of fluid therebetwoen.
Alternatively, it is envisioned that a close tolerance can be provided between tubular body 204 and tubule rod 206 such that passage of fluid bdtween tubular.body 204 and tubular rod 206 is iahtbited.
Gas administering system 208 regulates the amount of insulation gases, e.g., pneumoperitoneum gases, flowing through tubular body 204 and into the peritoneal cavity. Gas administering system 208 may be any conventional system suitable for this purpose. Gas administering system 208 preferably includes a source of insufflation gas "A"; e.g., pneumoperitoneum gas, a conduit 212 fluidly interconnecting the source of gas "A" to pneumoperitoneum needle 200 to carry the insufflation gas to the needle de~ination, and a valve 214 (e.g., a stop-cock valve or the like) operatively associated (e.g., in fluid communication) with conduit 212 for regulating the flow of gas through co~uit 212. Desirably, gas administering system 206 includes a gauge or indicator 216 operatively associated (i.e., in fluid co~nuuication) with conduit 212 for measuring the do~~e, guantity and/or pressure of gas delivered to peritoneal cavity "C".
With particular reference to FIGS. S and 6, a method of using operitoneum S needle 200 will now be described. In use, as seen in FIG. 5, pneumopaitoneum needle 200 is plaaced against the surfa~Ce of 6he paw's abdominal area "T" such that blunt distal tip 206a of tubular rod 206 contacts the su,Ff~e of abdominal area 'T". With distal tip 206av initially engaging and/or contacting the surface of abdominal area "T", distal force, as indicated by arrow "x', is applied to pneumoperitone~mm needle 200.
Pressing aadlor advancing pneumoperitoneom needle Z00 distally toward the surface of abd~ommal area 'T", in the direction of snow "X", reswlts irr tubular rod 206 being forced from the first position t~ the second position, thereby using spring ~d22 and ping piecing edge 210 of tubular body 204 in contact with the of abdominal area '~'". Whrn in the s~ocond potion, flaw of pneumopexitoua~m gas, through cavity 207c and et~
distally 1 S oriEnted opdiing 207a, is at least substantially, preferably completely, stopped.
Continual distal force is applied to ~pneumopaitone~ needle 200 so that pien"ang edge 210 pau~at~ the surface of abdominal area '°T" and enters abdominal cavity "C".
As sew in FIG. 6, once piercing edge 210 enters abdominal cavity "C°', tubular rod 206 moves distally, to its first position, under the influence of spring 222. In this position, radially oriented opening 207b of tubular rod 206 is brought into substantial alignment and/or registn~tion with radially oriented passage 230 of tubular body 204.
Conduit 212 can then be connected to passage 230 of tubular body 204 and valve 214 opened to permit the pneumoperitoncum gas to flow (as shown by arrows "F") out from the source of gas "A", through conduit 212, through passage 230, through opening 207b, through cavity 207c, through opening 207a foamed in distal tip 106a of fiubular rod.
206, and into abdominal cavity "C".
Abdominal cavity "C" is insufflated with pneumopttitoneum gas until gauga 216 reavches a particular pradotaminod level. Prefrerably, pne~operitonaum gas is in~luceci at a su~cieut volume and pr.~e to distend abdominal cavity "C" to a corJSid~abl~ eXtent: Once abdominal cavity "C" has boon distendded by a dcsirod andlor a sul~cimt amount, vatvc 214 is closed until additional pnevma~toaeum gas. is needed to ro-distend abdominal cavity "C", or in the altamative, valve 214 is tightened to thereby reduce the rats of introduction of pneumopcritoneum gas into abdomiaal cavity "C" and they maintain abdominal cavity "C" at a uniform dist~dod condition. It should be apparent that valve 214 can be adjusto~i as nthroughout the surgical procure to irtsufilate and/or deflate abdominal cavity "C".
Although pneumoperitoneum n~les 200 has boon d~ribod in tams of specified embodiments which are sEt forth in detail above, it should be understood that this is by illustration only and that pneumoperitoneum needle 200 is not necessarily limited to the embodiments disclosed herein, since alternative embodiments sad operating techniques will becomes apparent to those skilled in he art in view of the disclosure.
A~dingly, modifications are contemplated which can be made without departing fiom the spirit of the described pneumoperitoneum needle. For example, as seen in FIGS. 4-6, it is envisioned that proximal end portion 206b of tubular rod 206 is flared as compared to distal tip 206a (i.e., has a larger diameter as compared to the diameter of a distal portion thereof). In addition, tubular body 204 can includE a flared pro~a~imal end portion 204b to accommodate flared proximal end portion 206b of tubular rod 206. As such, in use, flared proximal end portion 206b of tubular and 206 abuts against the non-flared distal end portion 204a of tubular body 204, when tubular rod 206 is in the fast position, thereby effectively limiting the distal advancemcnt of tubular rod 2016 relative to tubular body 204. In other embodiments, the tubular and aadJor the tubular body lave a constant diameter, or other shape.
It is further envisioned that the outer surface of tubular rod 206 can include a element or member configured and adapted to engage and/or mate with a complementary member provided on the inner ~ of tubular body 204 such that tubular rod 206 is inb:~ited aadtor otherwise prevented il~om rotating about the longittudinal axis that thereby placing opening 207b of tubular road 206 out of radial regi~stratioa with passage 230 of tubular body 204.
While opening 207a formed is distal tip 206a is desirably distally grid, as 1 S seen in FIG. 4, it is envisioned and within the scope of th,e present disclosure that opening 207a can be replaced with at least one radially oriented opening 240 formed in distal tip 206a of tubular rod 206, as shown in FIG. 8. It is further envisioned that tubular and 206 can include both a distally oriented opening 207a and at least one radially oriented opening 240 (not shown). It is also envisioned that openings 240 can be oriented at an angle with respect to a longitudinal axis of tubular rod 206 (not shown).
While the above-disclosure relates primarily to a pneumoperitoncum needle configured to deliver an insuf~lation gas (e.g., pneumoperitoneum gas, COz and the like) to the abdominal cavity, it is envisioned and within the scope of the present disclosure that tho pneumoperitoneum needle can deliver any insufflation type fluid to the abdominal cavity, including and not limited to, saline, water; aqudous solutions aad the likE.
It is envisioned that various other modi8.cations fail within the scope of the preae'Bt disclosure without departing from the spirit of the same.
Claims (32)
1. A pneumoperitoneum needle for insulating an abdominal cavity, the pneumoperitoneum needle comprising:
a housing;
an elongate tubular body extending from a distal surface of the housing, the tubular body including a passage formed therethrough for connection to a gas administration system; and as elongate hollow tubular rod slidably received within the tubular body, the tubular rod including:
a blunt distal end defining an opening; and a proximal end portion defining an opening formed therethrough, wherein the tubular rod includes a first position in which the opening formed in the proximal end of the tubular rod is in registration with the passage formed in the tubular body, and a second position in which the opening formed in the proximal end of the tubular rod is out of registration with the passage formed in the tubular body.
a housing;
an elongate tubular body extending from a distal surface of the housing, the tubular body including a passage formed therethrough for connection to a gas administration system; and as elongate hollow tubular rod slidably received within the tubular body, the tubular rod including:
a blunt distal end defining an opening; and a proximal end portion defining an opening formed therethrough, wherein the tubular rod includes a first position in which the opening formed in the proximal end of the tubular rod is in registration with the passage formed in the tubular body, and a second position in which the opening formed in the proximal end of the tubular rod is out of registration with the passage formed in the tubular body.
2. The pneumoperitoneum needle according to claim 1, further comprising at least a pair of seal members disposed between the tubular body and the tubular rod.
3. The pneumoperitoneum needle according to claim 2, wherein a first of the pair of seal members is disposed distal of the passage formed in the tubular body and wherein a second of the pair of seal members is disposed proximal of the passage formed in the tubular body.
4. The pneumoperitoneum needle according to claim 3, wherein each seal member comprises an O-ring.
5. The pneumoperitoneum needle according to claim 3, wherein the seal member includes an annular rib formed around the periphery of at least one of the inner surface of the tubular body and the outer surface of the tubular rod.
6. The pneumoperitoneum needle according to claim 4, wherein a lubricant is provided between the tubular body and the tubular rod.
7. The pneumoperitoneum needle according to claim 4, wherein each seal member is fabricated from an elastomeric material.
8. The pneumoperitoneum needle wording to claim 7, wherein each seal member is fixedly positioned relative to the tubular body.
9. The pneumoperitoneum needle according to claim 3, wherein when the tubular rod is in the first position the opening formed therein is positioned between the first and the second seal member.
10. The pneumoperitoneum needle according to claim 9, wherein when the tubular rod is in the second position the opening formed therein is positioned proximal of the second seal member.
11 The pneumoperitoneum needle according to claim 9, the tubular rod is biased to the first position.
12. The pneumoperitoneum needle according too claim 9, further including a spring disposed between the housing and the tabular rod to bias the tubular rod to the first position.
13. The pneumoperitoneum needle according to claim 11, wherein the tubular body defines a cavity between the opening formed in the proximal end thereof and the opening formed in the blunt end thereof:
14. The pneumoperitoneum needle according to claim 9, wherein the tubular body includes a distal end defining a piercing tip.
15, The pneumoperitoneum needle according to claim 14, wherein the tubular rod is dimensioned such that when the tubular rod is in the first position the distal end of the tubular rod extends beyond the piercing tip of the tubular body and when the tubular rod is in the second position the piercing tip of the tubular body extends beyond the distal end of the tubular rod.
16. The pneumoperitoneum needle according to claim 1, further comprising a gas administering system operatively connectable to the passage formed is the tabular body, wherein the gas administering system delivers insufflation gases to the abdominal cavity.
17. The pneumoperitoneum needle according to claim 16, wherein the gas administering system includes:
a source of insufflation gas;
a conduit fluidly interconnecting the source of insufflation gas to the passage formed in the tubular body, and a valve in fluid communication with the conduit for regulating the flow of insufflation gas through the conduit.
a source of insufflation gas;
a conduit fluidly interconnecting the source of insufflation gas to the passage formed in the tubular body, and a valve in fluid communication with the conduit for regulating the flow of insufflation gas through the conduit.
18. The pneumoperitoneum needle according to claim 16, wherein the gas administering system includes a gauge for measuring at least one of the volume, quantity and pressure of insufflation gas delivered to the abdominal cavity.
19. A pneumoperitoneum needle for insufflating a corporal cavity, the pneumoperitoneum needle comprising:
as elongate tubular body;
an elongate hollow tubular rod slidably disposed within the tubular body;
a valve assembly at a proximal end of the tubular body and the tubular rod, the valve assembly including a manifold; and a stem mounted within the manifold, the manifold and the sham being movable with respect to one another so as to form a fluid path communicating with as indicator chamber is a first position, and a fluid path with the interior of the tubular rod, in a second position.
as elongate tubular body;
an elongate hollow tubular rod slidably disposed within the tubular body;
a valve assembly at a proximal end of the tubular body and the tubular rod, the valve assembly including a manifold; and a stem mounted within the manifold, the manifold and the sham being movable with respect to one another so as to form a fluid path communicating with as indicator chamber is a first position, and a fluid path with the interior of the tubular rod, in a second position.
20. The pneumoperitoneum needle according to claim 19, further including:
a first O-ring disposed between the manifold and the stem, the first 4-ring being positioned distal of a passage communicating with the indicator chamber; and a second O-ring disposal between the manifold and the stem, the O-ring being positioned proximal of the passage.
a first O-ring disposed between the manifold and the stem, the first 4-ring being positioned distal of a passage communicating with the indicator chamber; and a second O-ring disposal between the manifold and the stem, the O-ring being positioned proximal of the passage.
21. The pneumoperitoneum needle according to claim 20, wherein when the tubule rod is in a first position, an opening formed in the manifold is positioned distal of the first O-ring, and when the tubular rod is is a second position, the opening formed in the manifold is positioned between the first O-ring and the sod O-ring.
22. The pneumoperitoneum needle according to claim 19, wherein each of the first and second O-rings is fixedly positioned relative to the tubular body.
23. The pneumoperitoneum needle according to claim 21, wherein the tubular rod is biased to the first position.
24. The pneumoperitoneum needle according to claim 23, further including a spring member operatively positioned to bias the tubular rod to the first position.
25.The pneumoperitoneum needle according to claim 23, further comprising a housing for supporting the tubular body, the tubular body extending from a distal surface thereof.
26. The pneumoperitoneum needle according to claim 25, wherein the spring is disposed between a distally oriented surface of the stem and a proximally oriented surface of the tubular rod.
27. The pneumoperitoneum needle according to claim: 26, wherein a proximal portion of the tubular rod defines an enlarged portion and the spring is disposed in the enlarged portion.
28. The pneumoperitoneum needle according to claim 21, wherein the tubular body includes a distal end defining a piercing tip.
29. The pneumoperitoneum needle according to claim 28, wherein the tubular rod is dimensioned such that when the tubular rod is in the first position the distal end of the tubular rod extends beyond the piercing tip of the tubular body and when the tubular rod is in the second position the piercing tip of the tubular body extends beyond the distal and of the tubular rod.
30. The pneumoperitoneum needle according to claim 21, further comprising a gas administering system operatively connectable to the opening formed in the manifold, wherein the gas administering system delivers insufflation gases to the abdominal cavity.
31. The pneumoperitoneum needle according to claim 30, wherein the gas administering system includes:
a source of insufflation gas;
a conduit fluidly interconnecting the source of insufflation gas to a port in communication with the opening in the manifold; and a valve in fluid communication with the conduit for regulating the flow of insufflation gas through the conduit.
a source of insufflation gas;
a conduit fluidly interconnecting the source of insufflation gas to a port in communication with the opening in the manifold; and a valve in fluid communication with the conduit for regulating the flow of insufflation gas through the conduit.
32. The pneumoperitoneum needle according to claim 31, wherein the gas administering system further includes a gauge for measuring at least one of the volume, quantity and pressure of insufflation gas delivered to the abdominal cavity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/770,980 | 2004-02-03 | ||
| US10/770,980 US20050171465A1 (en) | 2004-02-03 | 2004-02-03 | Pneumoperitoneum needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2495500A1 true CA2495500A1 (en) | 2005-08-03 |
| CA2495500C CA2495500C (en) | 2013-07-09 |
Family
ID=34679354
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2495500A Expired - Fee Related CA2495500C (en) | 2004-02-03 | 2005-01-31 | Pneumoperitoneum needle |
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| US (4) | US20050171465A1 (en) |
| EP (1) | EP1561428B1 (en) |
| JP (2) | JP4695890B2 (en) |
| AU (1) | AU2005200394B2 (en) |
| CA (1) | CA2495500C (en) |
| DE (1) | DE602005021263D1 (en) |
| ES (1) | ES2345496T3 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5805827B2 (en) * | 2004-06-29 | 2015-11-10 | アプライド メディカル リソーシーズ コーポレイション | Optical surgical instrument for ventilation |
| US7329233B2 (en) * | 2004-10-05 | 2008-02-12 | Tyco Healthcare Group Lp | Surgical system for laparoscopic surgery |
| US8287503B2 (en) * | 2006-03-13 | 2012-10-16 | Applied Medical Resources Corporation | Balloon trocar |
| US8147453B2 (en) | 2006-03-13 | 2012-04-03 | Applied Medical Resources Corporation | Balloon trocar |
| US8211052B1 (en) * | 2006-07-13 | 2012-07-03 | Lexion Medical Llc | Charged hydrator |
| US8932249B2 (en) * | 2009-10-08 | 2015-01-13 | Ethicon Endo-Surgery, Inc. | Trocar assembly |
| US8491533B2 (en) * | 2009-10-08 | 2013-07-23 | Ethicon Endo-Surgery, Inc. | Trocar assembly |
| US20110112469A1 (en) * | 2009-11-08 | 2011-05-12 | Powerscope Incorporated | Device and process for dispensing multiple-phase mixtures |
| CN101947120B (en) * | 2010-09-30 | 2012-07-04 | 莫易凡 | Spiral puncture outfit with pneumoperitoneum device |
| US20120197078A1 (en) * | 2011-01-31 | 2012-08-02 | Eric Stanley | Insufflation needle with integrated image sensor |
| US8888692B1 (en) | 2011-08-26 | 2014-11-18 | Applied Medical Resources Corporation | Trocar cannula assembly and method of manufacture |
| JP5650697B2 (en) * | 2012-09-06 | 2015-01-07 | 富士フイルム株式会社 | Air supply system |
| WO2014134624A1 (en) | 2013-03-01 | 2014-09-04 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Modified veress needle for tension pneumothorax decompression |
| KR102206435B1 (en) | 2013-03-15 | 2021-01-22 | 어플라이드 메디컬 리소시스 코포레이션 | Trocar cannula assembly with low profile insertion configuration and method of manufacture |
| CN103751866B (en) * | 2014-01-28 | 2016-01-06 | 中国人民解放军第四军医大学 | A kind of medical pneumothorax needle |
| US10799266B2 (en) * | 2015-07-07 | 2020-10-13 | Lexion Medical, Llc | Method and system for gas maintenance to a body cavity using a trocar |
| CN105214150A (en) * | 2015-11-03 | 2016-01-06 | 孟凡美 | A kind of surgery abdominal drainage apparatus |
| CN106344977B (en) * | 2016-10-16 | 2019-03-29 | 陈琴 | Gas-liquid conversion type abdominal cavity suction device |
| US11033665B2 (en) | 2016-11-04 | 2021-06-15 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Modified veress needle assembly for tension pneumothorax decompression |
| US10966752B2 (en) * | 2017-03-08 | 2021-04-06 | Conmed Corporation | Single lumen gas sealed trocar for maintaining stable cavity pressure without allowing instrument access therethrough during endoscopic surgical procedures |
Family Cites Families (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR902521A (en) * | 1944-03-09 | 1945-09-03 | Therapeutic pneumothorax trocar | |
| US2623521A (en) * | 1951-03-12 | 1952-12-30 | Rose Shaw | Indicating stylet needle |
| US4180068A (en) * | 1978-04-13 | 1979-12-25 | Motion Control, Incorporated | Bi-directional flow catheter with retractable trocar/valve structure |
| JPS60238856A (en) * | 1984-05-11 | 1985-11-27 | Toshiba Corp | Accumulating device |
| US4808168A (en) * | 1986-05-05 | 1989-02-28 | Endotherapeutics | Pneumoneedle |
| US4808166A (en) * | 1987-10-08 | 1989-02-28 | James Davidov | Anal medication applicator |
| US4869717A (en) * | 1988-04-25 | 1989-09-26 | Adair Edwin Lloyd | Gas insufflation needle with instrument port |
| US5137509A (en) * | 1991-04-17 | 1992-08-11 | Dexide, Inc. | Surgical insufflation instrument |
| US5098388A (en) * | 1991-05-02 | 1992-03-24 | Richard Kulkashi | Veress needle assembly |
| US5256148A (en) * | 1991-05-03 | 1993-10-26 | Ethicon, Inc. | Verress needle with enhanced acoustical means |
| EP0512452B1 (en) | 1991-05-03 | 1996-04-10 | GOLDSTAR CO. Ltd. | Device for mounting a shadow mask in a color television tube |
| US5139485A (en) * | 1991-05-03 | 1992-08-18 | Ethicon, Inc. | Verress needle with enhanced acoustical means |
| US5330432A (en) * | 1991-12-06 | 1994-07-19 | Inbae Yoon | Retractable safety penetrating instrument |
| US5104381A (en) * | 1991-08-30 | 1992-04-14 | Origin Medsystems, Inc. | Pneumoneedle with removable stylet assembly |
| US5665072A (en) * | 1991-11-27 | 1997-09-09 | Yoon; Inbae | Safety needle instrument with movable cannula and needle |
| AU651745B2 (en) * | 1991-12-13 | 1994-07-28 | Covidien Ag | Locking pneumoneedle |
| US5300084A (en) * | 1992-11-23 | 1994-04-05 | United States Surgical Corporation | Pneumoperitoneum needle |
| US5312351A (en) * | 1993-01-29 | 1994-05-17 | Gerrone Carmen J | Combined pneumo-needle and trocar apparatus |
| US5352206A (en) * | 1993-03-31 | 1994-10-04 | Laparomed Corporation | Trocar system having penetration indicator |
| US5437643A (en) * | 1993-05-17 | 1995-08-01 | Ethicon, Inc. | Safety interposer for surgical instruments |
| US5454791A (en) * | 1993-09-07 | 1995-10-03 | United States Surgical Corporation | Trocar with tissue penetration pressure indicator |
| US5470316A (en) * | 1993-09-07 | 1995-11-28 | United States Surgical Corporation | Body tissue penetrating device having a vacuum indicator |
| US5374253A (en) * | 1993-10-12 | 1994-12-20 | Burns, Sr.; Charles N. | Medical instrument with automatic shut-off valve |
| FR2727848A1 (en) * | 1994-12-09 | 1996-06-14 | Yves Zoccola | Trocar for human or animal coelioscopy |
| US5743881A (en) * | 1995-11-03 | 1998-04-28 | Aptec Medical Corporation | Laparoscopic surgical instrument and method of using same |
| JP3715010B2 (en) * | 1995-11-20 | 2005-11-09 | オリンパス株式会社 | Insufflation needle with mantle |
| US6299592B1 (en) * | 1998-03-31 | 2001-10-09 | Northgate Technologies Inc. | Laparoscopic insufflator |
| US6193692B1 (en) * | 1998-08-03 | 2001-02-27 | Bruce C Harris | Verres needle with high flow adaptor |
| US6493692B1 (en) * | 1998-09-30 | 2002-12-10 | Canon Kabushiki Kaisha | Information search apparatus and method, and computer readable memory |
| US20040230160A1 (en) * | 2000-06-22 | 2004-11-18 | Erblan Surgical Inc. | Safety trocar including sealing member |
| US6478775B1 (en) * | 2000-10-02 | 2002-11-12 | Genyx Medical Inc. | Device for delivering non-biodegradable bulking composition to a urological site |
| US7329233B2 (en) * | 2004-10-05 | 2008-02-12 | Tyco Healthcare Group Lp | Surgical system for laparoscopic surgery |
-
2004
- 2004-02-03 US US10/770,980 patent/US20050171465A1/en not_active Abandoned
-
2005
- 2005-01-31 AU AU2005200394A patent/AU2005200394B2/en not_active Ceased
- 2005-01-31 CA CA2495500A patent/CA2495500C/en not_active Expired - Fee Related
- 2005-02-01 ES ES05002025T patent/ES2345496T3/en active Active
- 2005-02-01 DE DE602005021263T patent/DE602005021263D1/en active Active
- 2005-02-01 EP EP05002025A patent/EP1561428B1/en not_active Expired - Fee Related
- 2005-02-02 JP JP2005027104A patent/JP4695890B2/en not_active Expired - Fee Related
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2006
- 2006-06-26 US US11/475,422 patent/US7618399B2/en active Active
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2009
- 2009-11-11 US US12/616,329 patent/US7887514B2/en not_active Expired - Fee Related
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2010
- 2010-10-08 JP JP2010229140A patent/JP2011056270A/en not_active Withdrawn
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2011
- 2011-01-20 US US13/009,967 patent/US8382716B2/en active Active
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| ES2345496T3 (en) | 2010-09-24 |
| US7887514B2 (en) | 2011-02-15 |
| DE602005021263D1 (en) | 2010-07-01 |
| CA2495500C (en) | 2013-07-09 |
| JP4695890B2 (en) | 2011-06-08 |
| JP2011056270A (en) | 2011-03-24 |
| EP1561428B1 (en) | 2010-05-19 |
| EP1561428A3 (en) | 2005-11-02 |
| JP2005218869A (en) | 2005-08-18 |
| AU2005200394A1 (en) | 2005-08-18 |
| US7618399B2 (en) | 2009-11-17 |
| US20110118658A1 (en) | 2011-05-19 |
| US20100056987A1 (en) | 2010-03-04 |
| US20060282047A1 (en) | 2006-12-14 |
| US20050171465A1 (en) | 2005-08-04 |
| EP1561428A2 (en) | 2005-08-10 |
| US8382716B2 (en) | 2013-02-26 |
| AU2005200394B2 (en) | 2010-07-29 |
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Legal Events
| Date | Code | Title | Description |
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| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20170131 |
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| MKLA | Lapsed |
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