CA1306154C - Partible forceps instrument for endoscopy - Google Patents
Partible forceps instrument for endoscopyInfo
- Publication number
- CA1306154C CA1306154C CA000520847A CA520847A CA1306154C CA 1306154 C CA1306154 C CA 1306154C CA 000520847 A CA000520847 A CA 000520847A CA 520847 A CA520847 A CA 520847A CA 1306154 C CA1306154 C CA 1306154C
- Authority
- CA
- Canada
- Prior art keywords
- forceps
- cable
- sheath
- distal end
- connector
- 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.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/06—Biopsy forceps, e.g. with cup-shaped jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3201—Scissors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2901—Details of shaft
- A61B2017/2905—Details of shaft flexible
-
- 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
- A61B90/70—Cleaning devices specially adapted for surgical instruments
Abstract
Partible Forceps Instrument for Endoscopy Abstract A partible forceps instrument for endoscopy separable into an operating segment and a sampling segment and having a cleaning fixture.
Description
:L3~63L5~
10-175C~ Descr_ption Partible Forceps Instrument for Endoscopy Technical Field _ _ .
This invention relates generally to flexible forceps instruments for endoscopy and, more particularly, to a partible forceps instrument.
Back~round Art Flexible forceps instruments for endoscopic use, such as gastroscopy, bronchoscopy and the like, typically are constructed as an inseparable ;nstrument having a cable with forceps pincers welded to one end and a spring mounted operating handle welded to the other end. The ; cable is enclosed within a flexible, coiled sheath that is permanently attached to the operating handle at one end and to the base of the forceps pincers at the other end. Pushing the cable forward relative to the sheath by means of the handle causes the pincers to open.
~ome of the disadvantages of inseparable forceps instruments are that they are difficult to clean after use and that they are difficult to repair when damaged.
During use, the interior of the forceps, the cable and the sheath become soiled. The delicate forceps become clogged with material which is difficult to dislodge. Even subjecting the instrument to ultrasonic cleaning will not thoroughly clean the operating cable and shea~h in as much as the ultrasound dislodges par-ticulate matter but does not flush it out of the sheath.
; Thus, the dislodged matter may dry and block the cable or the forceps.
The forceps instrument may be damaged in use when the operator attempts to force the flexible cable and sheath through an endoscope with the result that the coiled sheath develops a kink which inhibits or impairs the relative movement of the cable. The instrument may i~3~6~S4 also be damaged when the operator applies too much ten-sion on the cable in an attempt to close the forceps on a specimen. Since the base of the forceps is mounted to the sheath, too much tension on the cable can rupture the weld between the cable and the forceps pincer mechanism.
Typically, repair involves returninq the instrument to the manufacturer for rebuilding. The advantage of in-separable forceps instruments is the stability and handling afforded by unitary conskruction.
Disclosure of the Invention :
; 10 The present invention provides a partible forceps instrument for endoscopy which has the stability and handling of conventional inseparable forceps and which has separable parts and a cleaning fixture to provide for complete cleaning and flushing of the instrument.
The separability allows for replacement or interchange-ability of parts and permits for a smaller inventory of forceps parts.
More particularly, the invention is a flexible forceps instrument comprising a cable sheath, a forceps having a scissor mechanism demountably attached to a distal end of the sheath, a connector attached to a proximal end of the sheath, a manual operating assembly demountably attached to the connector and an operating cable inside the sheath attached at a distal end to the scissor mechanism of the forceps and demountably attached at a proximal end to the manual operating assembly.
The present invention also provides for a flexible forceps instrument system which includes a cleaning fixture ~ attachable to the sampling segment in place of the manual ;~ 30 operating assembly. The fixture is in the form of a hollow ~ube having an inlet at one end for receiving cleaning fluid under pressure and having a coupler at the other or outlet end to attach the fixture to the connector of the sampling segment.
~3~36~S4 The invention further provides for a sampling segment having a connector whereby the sampling segment is useable with the manual operating assembly for endoscopic use or is placed in condition for cleaning after use by attachment to the cleaning fixture.
One advantage of the construction of the present invention is that the biopsy instrument may be disassembled to facilitate cleaning the interior of the sheath and the cable.
Another advantage of the present invention is that a cleaning fixture is provided to facilitate ~he in~ro-duction of cleaning fluid under pressure into the interior of the sheath to flush out trapped particulate matter.
Yet another advantage of the present invention is that a sampling segment is provided which allows various lengths of sheath enclosed cable and various forceps designs to be used interchangeably with the same manual operating assembly.
A further advantage of the present invention is that the sampling segment allows for replacement or ~0 repair of damaged sheaths or damaged forceps without the need for replacing or repairing the entlre instrument~
Other advantages and a more complete understanding of the invention will be had from the following detailed description when taken in conjunction with the accompanying drawings.
Brief Description of the Drawings Figure 1 is a partial plan view of the flexible biopsy instrument;
Figure lA is a cross-sectional view of Figure 1 taken along the line lA-lA of Figure 1;
Figure 2 is a partial longitudinal-sectional view of Figure 1 taken along the line 2-2 of Figure l;
Figure 3 is a partial cross-sec-tional view of a demountable forceps of the flexible biopsy instrument;
.: ... .. .. .
~L3~6~
Figure 4 is a partial cross-sectional view of a unitary forceps and sheath of the flexible biopsy in-strument;
Figure 5A is a side view of the connector of the ; biopsy instrument; and Figure 5B is a side view partially in section of the cleaning fixture.
Best Mode for Carrying Out the Invention Referring to Figures 1-2r the fle~ible forceps instrument, shown generally at 10, has a sampling segment 20 and a operating segment SO.
The sampling segment 20 is composed of a coiled spring sheath 22, an operating cable 24 within the sheath 22/ a connector 26 attached to the proximal end 28 of the sheath 22, and a sampling forceps 30 attached to the distal end 32 of the sheath 22.
As shown in Figure 3, the sampling forceps 30 has a pincer supporting body 34 with a passage 35 through which the operating cable 24 passes. Two laterally spaced prongs 36a, 36b extend distally from the body 34 between which pincers 38a, 38b are mounted on a fixed pivot shaft 39. Pincer operating links 40a, 40b pivotally connect the distal end 25 of the operating cable 24 to `!
the pincers. The operating cable 24 is connected to ~`~ the pincer operating links through a pivot 42. A similar forceps 30' is shown in Figure 4, in which like parts are designated by the same reference numeral as in the forceps 30, but with a prime designation.
The sampling forceps 30 as shown in Figures 3 and 4 are of the biopsy cup type with needle. It is to be understood that many types of forceps such as, but not limi~ed to, biopsy Eorceps, grasping forceps, or scissors may be employed.
In the preferred embodiment shown in ~igure 3, the sheath 22 is demountably mounted on ~he body 34 of the :: - ,- ~ , ,.
~3~5~
sampler forceps 30. A sheath collar 44 is attached to the dis~al end 32 of the shea~h 22. The sheath collar 44 has a pair of distally projecting fingers 46a, 46b extending from diametrically opposite sides of the collar 44~ ~he width of each finger is approximately one-half the diame~er of ~he collar 44~ Each finger has a base portion, as at 47, formed by a pair of slits in the collar, as at 48, extending proximally into the collar 44. This construction and the spring steel of which the collar is formed impart spring-like resiliency to the finger.s. Each of the fingers 4Ga, 46b is provided with an inwardly facing tooth 41a, 41b. The teeth 41a, 41b snap into and out of a pair of corresponding op-positely facing flat grooves 35a, 35b in a pair of op-positely acing mounting portions 37a, 37b of the body 34 of the sampler Eorceps 30. The mountiny portions 37a, 37b are in the form of flat external surfaces against which the fingers abut and which effectively reduce the diameter of the body 34 to allow ~he collar 44 to be snapped onto the body 34 via the projections 46a, 46b and the teeth 41a, 41b without presenting an increased diameter periphery. In another embodiment as shown in Figure 4, ~he sheath 22' is non-demountably attached to the body 34' of the sampler forceps 30' by a friction closure 49 or the like.
As shown in Figures 1 and 5A, the connector 26 has a reduced diameter distal portion 27 with a tapered end 29. The distal portion 27 has external threads 31 about which the proximal end 28 of the sheath 22 is threaded and then permanently attached by welding or the like.
The adapter 26 has an increased diameter proximal end 35 with external threads 37 and an internal conical surface 33.
The operating segment 50, as best shown in Figures 1 and 2, has a central shaft 52, a cable slide 62 slidably .~ ..
-` ~3q:~6'~
mounted on the shaft 52, a thumb ring 54 with a connecting col]ar 56 crimpea to be freely rotatable on a proximal end 57 of the shaft 52, and an internally threaded coupler ~` nut 58 freely rotatably about a reduced diameter distal portion 60 of the shaft 52. As best seen in Figure 2, the reduced diameter distal portion 60 of the shaft 52 has a tapered portion 64 and a snap-ring groove 66.
The snap-ring groove 66 receives a snap-ring 68 which mounts the coupler nut 5~ on the reduced diameter distal portion 60 of the shaft 52. The coupler nut 58 serves to demountably attach the sampler segment 20 to ~he operating segment 50. The tapered portion 64 of the shaft 52 engages the internal conical surface 33 of the increased diameter proximal portion 35 of the connector 26 and provides a stable connection that resists defor-mation or flexion during manipulation of the instrument.
The cable slide 62 is in the form of a spool to ~' facilitate gripping between the index and third finger of the operator's hand. The slide 62 has a central portion 80 and increased diameter flanges 82a, 82b to define the spool shape. The central shaft 52 has an ; elongated lateral passage 84 which forms a pair of tracks 70a? 70b, extending substantially the length of the shaft 52, upon which the cable slide 62 is slidably mounted. The elongated lateral passage 84 communicates with a reduced diameter passage 89 extending longitudinally through the distal portion 60 of the shaft 52 that receives the operating cable 24.
As best seen in Figure lA, the cable slide 62 has a throughbore 86 to accommodate the tracks 70a, 70b.
Rotation of the slide 62 about the central shaft 52 is prevented by means of a core member 88 which is located in longitudinal recesses 90a, 90b in throughbore 86. A
::
'~3~5~
pair of counter-sunk set screws 92a, 92b within the flanges 82a, 82b retains the core member 38 within the slide 62.
The operating cable 24 is demo~mtably attached to the slide 62 by means of a pair of t:humb screws 106a, 106b which fasten the cable 24 in a bore 110 of the core member 88 at longitudinally spaced locations.
A compression spring 112 is interposed between the slide 62 and the distal end of the :Lateral passage 84 around the operating cable 24. The spring 112 biases the slide 62 and the operating cable 24 to a position in which the forceps 30 are closed. An operator moving the slide 62 so as to compress the spring 112 causes the operating cable 24 to move distally toward the fixed pivot shaft 39 to cause the pincers 38a, 38b to open in order to take a biopsy sample. When the operator is satisfied the pincers are properly located to take a sample, the slide 62 is released from the index and third finger and the expansion of the spring 112 moves the slide 62 and operating cable 24 proximally to cause the pincers 38a, 38b to close.
After the instrument has been used to take a biopsy specimen, the instrument is prepared for cleaning and re-use by disassembly into the sampler segment 20 and the operating segment 50. The thumb screws 92a, 92b in the cable slide 62 are loosened to release the operating cable 24 from the bore 110 of the core member 88. The coupler nut 58 is rotated to free the operating segmen~
50 Erom the sampling segment 20. If the body 34 to which the operating cabïe 24 is a~tached is demoun~ably mounted on the sheath 22 as shown in Figure 3, the body and cable are removed by unsnapping the teeth 41a, 41b of he fingers 46a, 46b of the sheath collar 44 from the flat grooves 35a, 35b in the body 34 of the sampler forceps 30 and the cable pulled out of the sheath 22 :
~3~6~S~
from the distal end. If the operating cable 24 is non-demountably attached to the sheath 22, as with the body 34' shown in Figure 4, no further disassembly prior to cleaning is possible.
A cleaning fixture 120r as shown in Figure 5B, facilital:es cleaning the operating segment 20 and com-prises a hollow tube 122 having an internally threaded - coupler 124 at one end and an inlet 126 at an other end ;~ to receive a source of cleaning fluid under pressure, such as from a syringe. The inlet end 126 may be in the form o a luer lock or the like. The coupler 124 is freely rotatable about a reduced diameter portion 128 of the tube 122. The reduced diameter portion 128 has tapered portion 130 and a snap-ring groove 132 which receives a snap-ring 134. The snap-ring 134 retains the coupler 124 on the reduced diameter portion 128 of the tube 122. The coupler 124 of the cleaning fixture 120 is substantially identical to the coupler nut 58 of the operating segment 50, so that the cleaning fixture 120 may be interchanged with the operating segment 50.
For cleaning the sampling segment 20, the coupler 124 of the cleaning fixture 120 is attached to the externally threaded increased diameter portion 35 of the connector 26. The tapered portion 130 of the cleaning fixture 120 engages the internal conical surface 33 of the con-nector 26 and provides a fluid tight connection for introducing cleaning fluid into the interior of the connector 26 and sheath 22. Cleaning fluid may be in-troduced urlder pressure with a syringe having a luer-lock couplable to the inlet 126. This fixture is especially advantageous when the cable cannot be removed from the sheath because it is otherwise difficult to flow fluid through the sheath. The present invention thus provides a system in which a separable or partible ~3[316:~5~
forceps and a cleaning fixture cooperate to provide the advantages set forth.
Variations and modifications of the invention will be apparent to those skilled in the art from the above detailed description. Therefore~ it is to be understood that, within the scope of the appended claims, the inven-tion can be practiced otherwise than as specifically shown and described.
';
10-175C~ Descr_ption Partible Forceps Instrument for Endoscopy Technical Field _ _ .
This invention relates generally to flexible forceps instruments for endoscopy and, more particularly, to a partible forceps instrument.
Back~round Art Flexible forceps instruments for endoscopic use, such as gastroscopy, bronchoscopy and the like, typically are constructed as an inseparable ;nstrument having a cable with forceps pincers welded to one end and a spring mounted operating handle welded to the other end. The ; cable is enclosed within a flexible, coiled sheath that is permanently attached to the operating handle at one end and to the base of the forceps pincers at the other end. Pushing the cable forward relative to the sheath by means of the handle causes the pincers to open.
~ome of the disadvantages of inseparable forceps instruments are that they are difficult to clean after use and that they are difficult to repair when damaged.
During use, the interior of the forceps, the cable and the sheath become soiled. The delicate forceps become clogged with material which is difficult to dislodge. Even subjecting the instrument to ultrasonic cleaning will not thoroughly clean the operating cable and shea~h in as much as the ultrasound dislodges par-ticulate matter but does not flush it out of the sheath.
; Thus, the dislodged matter may dry and block the cable or the forceps.
The forceps instrument may be damaged in use when the operator attempts to force the flexible cable and sheath through an endoscope with the result that the coiled sheath develops a kink which inhibits or impairs the relative movement of the cable. The instrument may i~3~6~S4 also be damaged when the operator applies too much ten-sion on the cable in an attempt to close the forceps on a specimen. Since the base of the forceps is mounted to the sheath, too much tension on the cable can rupture the weld between the cable and the forceps pincer mechanism.
Typically, repair involves returninq the instrument to the manufacturer for rebuilding. The advantage of in-separable forceps instruments is the stability and handling afforded by unitary conskruction.
Disclosure of the Invention :
; 10 The present invention provides a partible forceps instrument for endoscopy which has the stability and handling of conventional inseparable forceps and which has separable parts and a cleaning fixture to provide for complete cleaning and flushing of the instrument.
The separability allows for replacement or interchange-ability of parts and permits for a smaller inventory of forceps parts.
More particularly, the invention is a flexible forceps instrument comprising a cable sheath, a forceps having a scissor mechanism demountably attached to a distal end of the sheath, a connector attached to a proximal end of the sheath, a manual operating assembly demountably attached to the connector and an operating cable inside the sheath attached at a distal end to the scissor mechanism of the forceps and demountably attached at a proximal end to the manual operating assembly.
The present invention also provides for a flexible forceps instrument system which includes a cleaning fixture ~ attachable to the sampling segment in place of the manual ;~ 30 operating assembly. The fixture is in the form of a hollow ~ube having an inlet at one end for receiving cleaning fluid under pressure and having a coupler at the other or outlet end to attach the fixture to the connector of the sampling segment.
~3~36~S4 The invention further provides for a sampling segment having a connector whereby the sampling segment is useable with the manual operating assembly for endoscopic use or is placed in condition for cleaning after use by attachment to the cleaning fixture.
One advantage of the construction of the present invention is that the biopsy instrument may be disassembled to facilitate cleaning the interior of the sheath and the cable.
Another advantage of the present invention is that a cleaning fixture is provided to facilitate ~he in~ro-duction of cleaning fluid under pressure into the interior of the sheath to flush out trapped particulate matter.
Yet another advantage of the present invention is that a sampling segment is provided which allows various lengths of sheath enclosed cable and various forceps designs to be used interchangeably with the same manual operating assembly.
A further advantage of the present invention is that the sampling segment allows for replacement or ~0 repair of damaged sheaths or damaged forceps without the need for replacing or repairing the entlre instrument~
Other advantages and a more complete understanding of the invention will be had from the following detailed description when taken in conjunction with the accompanying drawings.
Brief Description of the Drawings Figure 1 is a partial plan view of the flexible biopsy instrument;
Figure lA is a cross-sectional view of Figure 1 taken along the line lA-lA of Figure 1;
Figure 2 is a partial longitudinal-sectional view of Figure 1 taken along the line 2-2 of Figure l;
Figure 3 is a partial cross-sec-tional view of a demountable forceps of the flexible biopsy instrument;
.: ... .. .. .
~L3~6~
Figure 4 is a partial cross-sectional view of a unitary forceps and sheath of the flexible biopsy in-strument;
Figure 5A is a side view of the connector of the ; biopsy instrument; and Figure 5B is a side view partially in section of the cleaning fixture.
Best Mode for Carrying Out the Invention Referring to Figures 1-2r the fle~ible forceps instrument, shown generally at 10, has a sampling segment 20 and a operating segment SO.
The sampling segment 20 is composed of a coiled spring sheath 22, an operating cable 24 within the sheath 22/ a connector 26 attached to the proximal end 28 of the sheath 22, and a sampling forceps 30 attached to the distal end 32 of the sheath 22.
As shown in Figure 3, the sampling forceps 30 has a pincer supporting body 34 with a passage 35 through which the operating cable 24 passes. Two laterally spaced prongs 36a, 36b extend distally from the body 34 between which pincers 38a, 38b are mounted on a fixed pivot shaft 39. Pincer operating links 40a, 40b pivotally connect the distal end 25 of the operating cable 24 to `!
the pincers. The operating cable 24 is connected to ~`~ the pincer operating links through a pivot 42. A similar forceps 30' is shown in Figure 4, in which like parts are designated by the same reference numeral as in the forceps 30, but with a prime designation.
The sampling forceps 30 as shown in Figures 3 and 4 are of the biopsy cup type with needle. It is to be understood that many types of forceps such as, but not limi~ed to, biopsy Eorceps, grasping forceps, or scissors may be employed.
In the preferred embodiment shown in ~igure 3, the sheath 22 is demountably mounted on ~he body 34 of the :: - ,- ~ , ,.
~3~5~
sampler forceps 30. A sheath collar 44 is attached to the dis~al end 32 of the shea~h 22. The sheath collar 44 has a pair of distally projecting fingers 46a, 46b extending from diametrically opposite sides of the collar 44~ ~he width of each finger is approximately one-half the diame~er of ~he collar 44~ Each finger has a base portion, as at 47, formed by a pair of slits in the collar, as at 48, extending proximally into the collar 44. This construction and the spring steel of which the collar is formed impart spring-like resiliency to the finger.s. Each of the fingers 4Ga, 46b is provided with an inwardly facing tooth 41a, 41b. The teeth 41a, 41b snap into and out of a pair of corresponding op-positely facing flat grooves 35a, 35b in a pair of op-positely acing mounting portions 37a, 37b of the body 34 of the sampler Eorceps 30. The mountiny portions 37a, 37b are in the form of flat external surfaces against which the fingers abut and which effectively reduce the diameter of the body 34 to allow ~he collar 44 to be snapped onto the body 34 via the projections 46a, 46b and the teeth 41a, 41b without presenting an increased diameter periphery. In another embodiment as shown in Figure 4, ~he sheath 22' is non-demountably attached to the body 34' of the sampler forceps 30' by a friction closure 49 or the like.
As shown in Figures 1 and 5A, the connector 26 has a reduced diameter distal portion 27 with a tapered end 29. The distal portion 27 has external threads 31 about which the proximal end 28 of the sheath 22 is threaded and then permanently attached by welding or the like.
The adapter 26 has an increased diameter proximal end 35 with external threads 37 and an internal conical surface 33.
The operating segment 50, as best shown in Figures 1 and 2, has a central shaft 52, a cable slide 62 slidably .~ ..
-` ~3q:~6'~
mounted on the shaft 52, a thumb ring 54 with a connecting col]ar 56 crimpea to be freely rotatable on a proximal end 57 of the shaft 52, and an internally threaded coupler ~` nut 58 freely rotatably about a reduced diameter distal portion 60 of the shaft 52. As best seen in Figure 2, the reduced diameter distal portion 60 of the shaft 52 has a tapered portion 64 and a snap-ring groove 66.
The snap-ring groove 66 receives a snap-ring 68 which mounts the coupler nut 5~ on the reduced diameter distal portion 60 of the shaft 52. The coupler nut 58 serves to demountably attach the sampler segment 20 to ~he operating segment 50. The tapered portion 64 of the shaft 52 engages the internal conical surface 33 of the increased diameter proximal portion 35 of the connector 26 and provides a stable connection that resists defor-mation or flexion during manipulation of the instrument.
The cable slide 62 is in the form of a spool to ~' facilitate gripping between the index and third finger of the operator's hand. The slide 62 has a central portion 80 and increased diameter flanges 82a, 82b to define the spool shape. The central shaft 52 has an ; elongated lateral passage 84 which forms a pair of tracks 70a? 70b, extending substantially the length of the shaft 52, upon which the cable slide 62 is slidably mounted. The elongated lateral passage 84 communicates with a reduced diameter passage 89 extending longitudinally through the distal portion 60 of the shaft 52 that receives the operating cable 24.
As best seen in Figure lA, the cable slide 62 has a throughbore 86 to accommodate the tracks 70a, 70b.
Rotation of the slide 62 about the central shaft 52 is prevented by means of a core member 88 which is located in longitudinal recesses 90a, 90b in throughbore 86. A
::
'~3~5~
pair of counter-sunk set screws 92a, 92b within the flanges 82a, 82b retains the core member 38 within the slide 62.
The operating cable 24 is demo~mtably attached to the slide 62 by means of a pair of t:humb screws 106a, 106b which fasten the cable 24 in a bore 110 of the core member 88 at longitudinally spaced locations.
A compression spring 112 is interposed between the slide 62 and the distal end of the :Lateral passage 84 around the operating cable 24. The spring 112 biases the slide 62 and the operating cable 24 to a position in which the forceps 30 are closed. An operator moving the slide 62 so as to compress the spring 112 causes the operating cable 24 to move distally toward the fixed pivot shaft 39 to cause the pincers 38a, 38b to open in order to take a biopsy sample. When the operator is satisfied the pincers are properly located to take a sample, the slide 62 is released from the index and third finger and the expansion of the spring 112 moves the slide 62 and operating cable 24 proximally to cause the pincers 38a, 38b to close.
After the instrument has been used to take a biopsy specimen, the instrument is prepared for cleaning and re-use by disassembly into the sampler segment 20 and the operating segment 50. The thumb screws 92a, 92b in the cable slide 62 are loosened to release the operating cable 24 from the bore 110 of the core member 88. The coupler nut 58 is rotated to free the operating segmen~
50 Erom the sampling segment 20. If the body 34 to which the operating cabïe 24 is a~tached is demoun~ably mounted on the sheath 22 as shown in Figure 3, the body and cable are removed by unsnapping the teeth 41a, 41b of he fingers 46a, 46b of the sheath collar 44 from the flat grooves 35a, 35b in the body 34 of the sampler forceps 30 and the cable pulled out of the sheath 22 :
~3~6~S~
from the distal end. If the operating cable 24 is non-demountably attached to the sheath 22, as with the body 34' shown in Figure 4, no further disassembly prior to cleaning is possible.
A cleaning fixture 120r as shown in Figure 5B, facilital:es cleaning the operating segment 20 and com-prises a hollow tube 122 having an internally threaded - coupler 124 at one end and an inlet 126 at an other end ;~ to receive a source of cleaning fluid under pressure, such as from a syringe. The inlet end 126 may be in the form o a luer lock or the like. The coupler 124 is freely rotatable about a reduced diameter portion 128 of the tube 122. The reduced diameter portion 128 has tapered portion 130 and a snap-ring groove 132 which receives a snap-ring 134. The snap-ring 134 retains the coupler 124 on the reduced diameter portion 128 of the tube 122. The coupler 124 of the cleaning fixture 120 is substantially identical to the coupler nut 58 of the operating segment 50, so that the cleaning fixture 120 may be interchanged with the operating segment 50.
For cleaning the sampling segment 20, the coupler 124 of the cleaning fixture 120 is attached to the externally threaded increased diameter portion 35 of the connector 26. The tapered portion 130 of the cleaning fixture 120 engages the internal conical surface 33 of the con-nector 26 and provides a fluid tight connection for introducing cleaning fluid into the interior of the connector 26 and sheath 22. Cleaning fluid may be in-troduced urlder pressure with a syringe having a luer-lock couplable to the inlet 126. This fixture is especially advantageous when the cable cannot be removed from the sheath because it is otherwise difficult to flow fluid through the sheath. The present invention thus provides a system in which a separable or partible ~3[316:~5~
forceps and a cleaning fixture cooperate to provide the advantages set forth.
Variations and modifications of the invention will be apparent to those skilled in the art from the above detailed description. Therefore~ it is to be understood that, within the scope of the appended claims, the inven-tion can be practiced otherwise than as specifically shown and described.
';
Claims (26)
1. A flexible biopsy instrument comprising:
a cable sheath having forceps-attaching means including a resilient member attached to the distal end of said cable sheath;
a forceps having a scissor mechanism and receiv-ing means demountably engaged by said forceps attaching means, said receiving means including a recess for receiv-ing said resilient member, said forceps demountably attached to a distal end of said cable sheath;
a connector attached to a proximal end of said cable sheath;
a manual operating assembly including scissor mechanism actuating means demountably attached to said connector; and an operating cable within said sheath and said connector attached at a distal end to said scissor mechan-ism of said forceps and demountably attached at a proximal end to said scissor mechanism actuating means.
a cable sheath having forceps-attaching means including a resilient member attached to the distal end of said cable sheath;
a forceps having a scissor mechanism and receiv-ing means demountably engaged by said forceps attaching means, said receiving means including a recess for receiv-ing said resilient member, said forceps demountably attached to a distal end of said cable sheath;
a connector attached to a proximal end of said cable sheath;
a manual operating assembly including scissor mechanism actuating means demountably attached to said connector; and an operating cable within said sheath and said connector attached at a distal end to said scissor mechan-ism of said forceps and demountably attached at a proximal end to said scissor mechanism actuating means.
2. A flexible biopsy instrument as claimed in Claim 1 wherein said forceps-attaching means further includes a collar attached to said distal end of said sheath, said collar supporting said resilient member, and said receiving means of said forceps further includes a forceps pincer supporting body slidably receivable in said collar, said body having a mounting portion for receiving said resilient member.
3. A flexible biopsy instrument as claimed in claim 2 wherein said resilient member comprises a finger having a locking tooth and said mounting portion includes a recess for receiving said locking tooth.
4. A flexible biopsy instrument as claimed in claim 3 wherein said mounting portion further includes a flat abutment surface for abutting engagement with said finger.
5. A flexible biopsy instrument as claimed in claim 1 wherein said connector comprises a hollow tube having a coupling means at one end for demountably coupling said connector to said manual operating assembly and further having a cable sheath attachment portion at another end for attaching said cable sheath to said connector.
6. A flexible biopsy instrument as claimed in claim 1 wherein said manual operating assembly includes:
a central shaft having a throughbore for receiv-ing said operating cable;
a coupling nut rotatably mounted on a distal end of said shaft, said coupling nut adapted to couple with said connector; and a cable slide slidably mounted on said central shaft, said cable slide having means for releasably receiv-ing said operating cable.
a central shaft having a throughbore for receiv-ing said operating cable;
a coupling nut rotatably mounted on a distal end of said shaft, said coupling nut adapted to couple with said connector; and a cable slide slidably mounted on said central shaft, said cable slide having means for releasably receiv-ing said operating cable.
7. A flexible biopsy instrument as claimed in claim 6 wherein said manual operating assembly further includes a thumb-ring rotatably mounted on a proximal end of said central shaft.
8. A flexible biopsy instrument system comprising:
a sampling segment including:
a cable sheath, a forceps having a scissor mechanism, said forceps attached to a proximal end of said cable sheath, and an operating cable within said sheath and said connector attached at a distal end to said scissor mechanism of said forceps;
an operating segment including:
a manual operating assembly including scissor mechanism actuating means, means for demountably connecting said manual operating assembly to said connector, and means for demountably connecting said operating cable to said scissor mechanism actuating means; and a cleaning fixture including:
a hollow tube having an inlet at one end to receive fluid under pressure and having connecting means at another end for demountably connecting said fixture to said connector in place of said manual operating assembly.
a sampling segment including:
a cable sheath, a forceps having a scissor mechanism, said forceps attached to a proximal end of said cable sheath, and an operating cable within said sheath and said connector attached at a distal end to said scissor mechanism of said forceps;
an operating segment including:
a manual operating assembly including scissor mechanism actuating means, means for demountably connecting said manual operating assembly to said connector, and means for demountably connecting said operating cable to said scissor mechanism actuating means; and a cleaning fixture including:
a hollow tube having an inlet at one end to receive fluid under pressure and having connecting means at another end for demountably connecting said fixture to said connector in place of said manual operating assembly.
9. A flexible biopsy instrument as claimed in claim 14 wherein said forceps are demountably attached to said distal end of said cable sheath.
10. A flexible biopsy instrument system as claimed in claim 9 wherein said cable sheath has forceps-attaching means for demountably attaching said forceps to a distal end of said sheath and wherein said forceps has receiving means engaged by said forceps-attaching means.
11. A flexible biopsy instrument system as claimed in claim 10 wherein said forceps-attaching means includes a resilient member attached to said distal end of said sheath, and said receiving means of the forceps includes a recess for receiving the resilient member.
12. A flexible biopsy instrument system as claimed in claim 10, wherein said forceps-attaching means includes a collar attached to said distal end of said sheath, said collar having a resilient member, and said receiving means of said forceps includes a forceps pincer supporting body slidably receivable in said collar, said body having a mounting portion for receiving said resilient member.
13. A flexible biopsy instrument system as claimed in claim 12 wherein said resilient member comprises a finger having a locking tooth and said mounting portion includes a recess for receiving said locking tooth.
14. A flexible biopsy instrument system as claimed in claim 13 wherein said mounting portion further includes a flat abutment surface for abutting engagement with said finger.
15. A flexible biopsy instrument system as claimed in claim 8 wherein said connector comprises a hollow tube having a coupling means at one end for demountably coupling said connector to said manual operating assembly and further having a cable sheath attachment portion at another end for attaching said cable sheath to said connector.
16. A flexible biopsy instrument system as claimed in claim 8 wherein said manual operating assembly includes:
a central shaft having a throughbore for receiv-ing said operating cable;
a coupling nut rotatably mounted on a distal end of said shaft, said coupling nut adapted to couple with said connector; and a cable slide slidably mounted on said central shaft, said cable slide having means for releasably receiv-ing said operating cable.
a central shaft having a throughbore for receiv-ing said operating cable;
a coupling nut rotatably mounted on a distal end of said shaft, said coupling nut adapted to couple with said connector; and a cable slide slidably mounted on said central shaft, said cable slide having means for releasably receiv-ing said operating cable.
17. A flexible biopsy instrument system as claimed in claim 16 wherein said manual operating assembly further includes a thumb-ring rotatably mounted on a proximal end of said central shaft.
18. A sampling segment for endoscopic use comprising:
a cable sheath forceps-attaching means including a resilient member attached to the distal end of said cable sheath;
a forceps having a scissor mechanism and receiv-ing means demountably engaged by said forceps attaching means, said receiving means including a recess for receiv-ins said resilient member, said forceps demountably attached to a distal end of said cable sheath;
a connector attached to a proximal end of said cable sheath;
an operating cable within said sheath and said connector attached at a distal end to said scissor mechan-ism;
said connector having coupling means on a proxi-mal end whereby said sampling segment is coupleable with a manual operating assembly having a scissor mechanism actuating means attachable to the proximal and of the operating cable for use in endoscopic procedures or whereby said sampling segment is coupleable with a cleaning fixture for introducing cleaning fluid under pressure into the interior of said sampling segment.
a cable sheath forceps-attaching means including a resilient member attached to the distal end of said cable sheath;
a forceps having a scissor mechanism and receiv-ing means demountably engaged by said forceps attaching means, said receiving means including a recess for receiv-ins said resilient member, said forceps demountably attached to a distal end of said cable sheath;
a connector attached to a proximal end of said cable sheath;
an operating cable within said sheath and said connector attached at a distal end to said scissor mechan-ism;
said connector having coupling means on a proxi-mal end whereby said sampling segment is coupleable with a manual operating assembly having a scissor mechanism actuating means attachable to the proximal and of the operating cable for use in endoscopic procedures or whereby said sampling segment is coupleable with a cleaning fixture for introducing cleaning fluid under pressure into the interior of said sampling segment.
19. A sampling segment as claimed in claim 18 wherein said forceps-attaching means further includes a collar attached to said distal end of said sheath, said collar supporting said resilient member, and said receiving means of said forceps further includes a forceps pincer support-ing body slidably receivable in said collar, said body having a mounting portion for receiving said resilient member.
20. A sampling segment as claimed in claim 19 wherein said resilient member comprises a finger having a locking tooth and said mounting portion includes a recess for receiving said locking portion includes a recess for receiving said locking tooth.
21. A sampling segment as claimed in claim 20 wherein said mounting portion further includes a flat abutment surface for abutting engagement with said finger.
22. A sampling segment as claimed in claim 18 wherein said connector comprises a hollow tube.
23. A flexible biopsy instrument comprising:
a cable sheath having a collar at a distal end, said collar including a resilient finger having a locking tooth:
a forceps having a scissor mechanism, said forceps demountably attached to the distal end of said sheath, said forceps including a forceps pincer supporting body slidably receivable in said collar, said body having a mounting portion for receiving said resilient finger, said mounting portion including a recess for receiving said locking tooth and further including a flat abutment surface for abutting engagement with said finger;
a connector attached to a proximal end of said cable sheath;
a manual operating assembly including scissor mechanism actuating means demountably attached to said connector; and an operating cable within said sheath and said connector attached at a distal end to said scissor mechan-ism of said forceps and demountably attached at a proximal end to said scissor mechanism actuating means.
a cable sheath having a collar at a distal end, said collar including a resilient finger having a locking tooth:
a forceps having a scissor mechanism, said forceps demountably attached to the distal end of said sheath, said forceps including a forceps pincer supporting body slidably receivable in said collar, said body having a mounting portion for receiving said resilient finger, said mounting portion including a recess for receiving said locking tooth and further including a flat abutment surface for abutting engagement with said finger;
a connector attached to a proximal end of said cable sheath;
a manual operating assembly including scissor mechanism actuating means demountably attached to said connector; and an operating cable within said sheath and said connector attached at a distal end to said scissor mechan-ism of said forceps and demountably attached at a proximal end to said scissor mechanism actuating means.
24. A flexible biopsy instrument comprising:
a cable sheath having a proximal and a distal end;
a cable operator attached to the proximal end of the sheath;
a forceps unit having as connected parts, a body, forceps-pincers pivotably connected to the body and a cable connected to the forceps-pincers;
means on the forceps unit and the distal end of the cable sheath cooperable to demountably attach the forceps unit to the sheath; and means on the cable operator for releasably securing the forceps unit whereby the forceps unit can be removed from the sheath and cable operator without disas-sembly of the unit parts.
a cable sheath having a proximal and a distal end;
a cable operator attached to the proximal end of the sheath;
a forceps unit having as connected parts, a body, forceps-pincers pivotably connected to the body and a cable connected to the forceps-pincers;
means on the forceps unit and the distal end of the cable sheath cooperable to demountably attach the forceps unit to the sheath; and means on the cable operator for releasably securing the forceps unit whereby the forceps unit can be removed from the sheath and cable operator without disas-sembly of the unit parts.
25. The biopsy instrument of claim 24 wherein one or the means on the forceps unit and the distal end of the cable sheath comprises a collar that releasably receives the other means to form a forceps-unit-to-sheath coupling.
26. The biopsy instrument of claim 25 wherein the means on the forceps unit and the distal end of the cable sheath are constructed and arranged so that when the collar releasably receives the other means, the peripheral diam-eter of the forceps-unit-to-sheath coupling on the cable sheath is essentially equal to the peripheral diameter of the coupling on the forceps-unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US792,093 | 1985-10-28 | ||
| US06/792,093 US4763668A (en) | 1985-10-28 | 1985-10-28 | Partible forceps instrument for endoscopy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1306154C true CA1306154C (en) | 1992-08-11 |
Family
ID=25155771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000520847A Expired - Fee Related CA1306154C (en) | 1985-10-28 | 1986-10-20 | Partible forceps instrument for endoscopy |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4763668A (en) |
| EP (1) | EP0225045A1 (en) |
| CA (1) | CA1306154C (en) |
| IL (1) | IL80354A0 (en) |
Families Citing this family (129)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264617B1 (en) | 1977-09-12 | 2001-07-24 | Symbiosis Corporation | Radial jaw biopsy forceps |
| US5133727A (en) * | 1990-05-10 | 1992-07-28 | Symbiosis Corporation | Radial jaw biopsy forceps |
| JPH0755222B2 (en) * | 1986-12-12 | 1995-06-14 | オリンパス光学工業株式会社 | Treatment tool |
| DE8712328U1 (en) * | 1987-09-11 | 1988-02-18 | Jakoubek, Franz, 7201 Emmingen-Liptingen, De | |
| DE3800331A1 (en) * | 1988-01-08 | 1989-07-27 | Fehling Medizintechnik Gmbh | MICROSURGICAL PLIERS, IN PART. FOR BIOPSY |
| US4945920A (en) * | 1988-03-28 | 1990-08-07 | Cordis Corporation | Torqueable and formable biopsy forceps |
| DE3815649A1 (en) * | 1988-04-20 | 1989-11-16 | Kurt Dr Med Groeben | Surgical instrument for fixing freely floating or partially fixed tissue parts |
| DE8814560U1 (en) * | 1988-11-14 | 1989-01-26 | Jakoubek, Franz, 7201 Emmingen-Liptingen, De | |
| US5052402A (en) * | 1989-01-31 | 1991-10-01 | C.R. Bard, Inc. | Disposable biopsy forceps |
| US5172700A (en) * | 1989-01-31 | 1992-12-22 | C. R. Bard, Inc. | Disposable biopsy forceps |
| DE8905099U1 (en) * | 1989-04-22 | 1989-08-03 | Pauldrach, Georg, 3008 Garbsen, De | |
| JPH069622Y2 (en) * | 1989-08-11 | 1994-03-16 | オリンパス光学工業株式会社 | Operation part of forceps device |
| US5549615A (en) * | 1989-11-11 | 1996-08-27 | Vascomed Institut Fur Kathetertechnologie Gmbh | Method and apparatus for extracting pacemaker electrodes embedded in the heart |
| US5454378A (en) * | 1993-02-11 | 1995-10-03 | Symbiosis Corporation | Biopsy forceps having a detachable proximal handle and distal jaws |
| US5228451A (en) * | 1990-05-10 | 1993-07-20 | Symbiosis Corporation | Biopsy forceps device having stiff distal end |
| US5439478A (en) * | 1990-05-10 | 1995-08-08 | Symbiosis Corporation | Steerable flexible microsurgical instrument with rotatable clevis |
| US5507297A (en) * | 1991-04-04 | 1996-04-16 | Symbiosis Corporation | Endoscopic instruments having detachable proximal handle and distal portions |
| DE4020155A1 (en) * | 1990-06-25 | 1992-01-02 | Storz Karl | Removing internal flaps of veins - involves instrument with shaft consisting of flexible inner and outer tubes |
| US5094247A (en) * | 1990-08-31 | 1992-03-10 | Cordis Corporation | Biopsy forceps with handle having a flexible coupling |
| US5100430A (en) * | 1990-08-31 | 1992-03-31 | Cordis Corporation | Biopsy forceps device having a ball and socket flexible coupling |
| US5489292A (en) * | 1990-10-05 | 1996-02-06 | United States Surgical Corporation | Endoscopic surgical instrument with grip enhancing means |
| CA2050868C (en) * | 1990-10-05 | 2002-01-01 | Ernie Aranyi | Endoscopic surgical instrument |
| US5486189A (en) * | 1990-10-05 | 1996-01-23 | United States Surgical Corporation | Endoscopic surgical instrument |
| US5509922A (en) * | 1990-10-05 | 1996-04-23 | United States Surgical Corporation | Endoscopic surgical instrument |
| US5626609A (en) * | 1990-10-05 | 1997-05-06 | United States Surgical Corporation | Endoscopic surgical instrument |
| US5478347A (en) * | 1990-10-05 | 1995-12-26 | United States Surgical Corporation | Endoscopic surgical instrument having curved blades |
| EP0526115B1 (en) * | 1991-07-29 | 1997-04-02 | Smith & Nephew Richards Inc | Forceps |
| US5275608A (en) * | 1991-10-16 | 1994-01-04 | Implemed, Inc. | Generic endoscopic instrument |
| US5542432A (en) * | 1992-02-18 | 1996-08-06 | Symbiosis Corporation | Endoscopic multiple sample bioptome |
| US5419339A (en) * | 1992-04-09 | 1995-05-30 | Symbiosis Corporation | Flexible microsurgical instrument having ground distal coil portion |
| US5184625A (en) * | 1992-04-16 | 1993-02-09 | Cordis Corporation | Biopsy forceps device having improved handle |
| US5250073A (en) * | 1992-06-10 | 1993-10-05 | Cordis Corporation | Torqueable and formable biopsy forceps |
| US5287857A (en) * | 1992-06-22 | 1994-02-22 | David Mann | Apparatus and method for obtaining an arterial biopsy |
| CA2106039A1 (en) * | 1992-09-23 | 1994-03-24 | David A. Nicholas | Surgical biopsy forceps apparatus |
| US5295052A (en) * | 1992-10-09 | 1994-03-15 | Luxtec Corporation | Light source assembly |
| US5334198A (en) * | 1992-10-09 | 1994-08-02 | Innovasive Devices, Inc. | Surgical instrument |
| US5683359A (en) * | 1992-11-18 | 1997-11-04 | Symbiosis Corporation | Arthroscopic surgical instruments having suction capability |
| US5403326A (en) * | 1993-02-01 | 1995-04-04 | The Regents Of The University Of California | Method for performing a gastric wrap of the esophagus for use in the treatment of esophageal reflux |
| AU6236794A (en) * | 1993-02-22 | 1994-09-14 | Valleylab, Inc. | A laparoscopic dissection tension retractor device and method |
| US5325866A (en) * | 1993-04-20 | 1994-07-05 | Jacek Krzyzanowski | Flexible biopsy forceps |
| WO1995002365A1 (en) * | 1993-07-17 | 1995-01-26 | Gerhard Schad | Surgical instrument |
| US5336238A (en) * | 1993-07-19 | 1994-08-09 | Birtcher Medical Systems, Inc. | Surgical instrument capable of disassembly |
| US5507774A (en) * | 1993-07-19 | 1996-04-16 | Wright Medical Technology, Inc. | Surgical instrument capable of disassembly |
| WO1995008945A2 (en) * | 1993-09-20 | 1995-04-06 | Boston Scientific Corporation | Multiple biopsy sampling device |
| US5601585A (en) * | 1994-02-08 | 1997-02-11 | Boston Scientific Corporation | Multi-motion side-cutting biopsy sampling device |
| WO1995008944A2 (en) * | 1993-09-20 | 1995-04-06 | Boston Scientific Corporation | Multiple biopsy sampling forceps |
| US5573008A (en) * | 1993-10-29 | 1996-11-12 | Boston Scientific Corporation | Multiple biopsy sampling coring device |
| US5840044A (en) * | 1993-09-30 | 1998-11-24 | Boston Scientific Corporation | Multiple biopsy sampling forceps |
| DE4341735C1 (en) * | 1993-12-08 | 1995-08-10 | Aesculap Ag | Surgical tubular shaft instrument |
| AU1597695A (en) * | 1994-01-12 | 1995-08-01 | Symbiosis Corporation | Arthroscopic surgical instruments having suction capability |
| US5871453A (en) * | 1994-02-08 | 1999-02-16 | Boston Scientific Corporation | Moveable sample tube multiple biopsy sampling device |
| US5471992A (en) * | 1994-02-08 | 1995-12-05 | Boston Scientific Corporation | Multi-motion cutter multiple biopsy sampling device |
| US5417709A (en) * | 1994-04-12 | 1995-05-23 | Symbiosis Corporation | Endoscopic instrument with end effectors forming suction and/or irrigation lumens |
| US5591202A (en) * | 1994-04-28 | 1997-01-07 | Symbiosis Corporation | Endoscopic instruments having low friction sheath |
| US5569298A (en) * | 1994-05-02 | 1996-10-29 | Schnell; William J. | Resposable scissors |
| US5571116A (en) * | 1994-10-02 | 1996-11-05 | United States Surgical Corporation | Non-invasive treatment of gastroesophageal reflux disease |
| US5578056A (en) * | 1994-12-21 | 1996-11-26 | Ballard Medical Products | Separable economically partially disposable flexible biopsy forceps |
| US5573546A (en) * | 1995-03-07 | 1996-11-12 | Nakao; Naomi L. | Biopsy ejecting forceps |
| US5575806A (en) * | 1995-03-10 | 1996-11-19 | Nakao; Naomi | Biopsy forceps with tissue ejection means |
| US5810876A (en) * | 1995-10-03 | 1998-09-22 | Akos Biomedical, Inc. | Flexible forceps device |
| US5700275A (en) * | 1996-04-25 | 1997-12-23 | United States Surgical Corporation | Articulating endoscopic surgical instrument |
| US5706824A (en) * | 1996-05-20 | 1998-01-13 | Symbiosis Corporation | Endoscopic biopsy forceps instrument having a constant force spring biasing the jaws closed |
| US5782748A (en) * | 1996-07-10 | 1998-07-21 | Symbiosis Corporation | Endoscopic surgical instruments having detachable proximal and distal portions |
| US6331165B1 (en) * | 1996-11-25 | 2001-12-18 | Scimed Life Systems, Inc. | Biopsy instrument having irrigation and aspiration capabilities |
| US7347828B2 (en) * | 1996-11-25 | 2008-03-25 | Boston Scientific Miami Corporation | Suction adapter for medical instrument |
| US5897507A (en) | 1996-11-25 | 1999-04-27 | Symbiosis Corporation | Biopsy forceps instrument having irrigation and aspiration capabilities |
| US6142956A (en) | 1996-11-25 | 2000-11-07 | Symbiosis Corporation | Proximal actuation handle for a biopsy forceps instrument having irrigation and aspiration capabilities |
| JPH10155804A (en) * | 1996-11-28 | 1998-06-16 | Asahi Optical Co Ltd | Treatment tool for endoscope |
| US5964717A (en) * | 1997-01-06 | 1999-10-12 | Symbiosis Corporation | Biopsy forceps having detachable handle and distal jaws |
| JP3417778B2 (en) * | 1997-01-17 | 2003-06-16 | ペンタックス株式会社 | Endoscope treatment tool |
| JPH11104071A (en) * | 1997-08-05 | 1999-04-20 | Olympus Optical Co Ltd | Treating instrument for endoscope |
| US6139563A (en) * | 1997-09-25 | 2000-10-31 | Allegiance Corporation | Surgical device with malleable shaft |
| FR2777176A1 (en) * | 1998-04-08 | 1999-10-15 | Jean Marie Hugueny | Hand piece for surgical biopsy instrument |
| US6273882B1 (en) * | 1998-06-18 | 2001-08-14 | Scimed Life Systems | Snap handle assembly for an endoscopic instrument |
| US6245062B1 (en) | 1998-10-23 | 2001-06-12 | Afx, Inc. | Directional reflector shield assembly for a microwave ablation instrument |
| US7226446B1 (en) | 1999-05-04 | 2007-06-05 | Dinesh Mody | Surgical microwave ablation assembly |
| US6277113B1 (en) | 1999-05-28 | 2001-08-21 | Afx, Inc. | Monopole tip for ablation catheter and methods for using same |
| US6517539B1 (en) | 1999-08-06 | 2003-02-11 | Scimed Life Systems, Inc. | Polypectomy snare having ability to actuate through tortuous path |
| US6235026B1 (en) * | 1999-08-06 | 2001-05-22 | Scimed Life Systems, Inc. | Polypectomy snare instrument |
| US6537205B1 (en) | 1999-10-14 | 2003-03-25 | Scimed Life Systems, Inc. | Endoscopic instrument system having reduced backlash control wire action |
| US6454702B1 (en) | 1999-10-14 | 2002-09-24 | Scimed Life Systems, Inc. | Endoscope and endoscopic instrument system having reduced backlash when moving the endoscopic instrument within a working channel of the endoscope |
| US6409727B1 (en) | 1999-10-15 | 2002-06-25 | Scimed Life Systems, Inc. | Multifilar flexible rotary shaft and medical instruments incorporating the same |
| ITCE990004A1 (en) * | 1999-10-25 | 2000-01-25 | Mario Immacolato Paternuosto | VALVE FOR BIOPSY FORCEPS IN DIGESTIVE ENDOSCOPY |
| US7033352B1 (en) | 2000-01-18 | 2006-04-25 | Afx, Inc. | Flexible ablation instrument |
| US6673068B1 (en) | 2000-04-12 | 2004-01-06 | Afx, Inc. | Electrode arrangement for use in a medical instrument |
| US20020087151A1 (en) | 2000-12-29 | 2002-07-04 | Afx, Inc. | Tissue ablation apparatus with a sliding ablation instrument and method |
| US7341564B2 (en) * | 2001-05-03 | 2008-03-11 | Boston Scientific Scimed, Inc. | Biopsy forceps device with transparent outer sheath |
| US20030097146A1 (en) * | 2001-11-19 | 2003-05-22 | Scimed Life Systems, Inc. | Endoscopic surgical instrument |
| US7169167B2 (en) * | 2001-12-04 | 2007-01-30 | Scimed Life Systems, Inc. | Endoscopic apparatus and method |
| US7099717B2 (en) | 2002-01-03 | 2006-08-29 | Afx Inc. | Catheter having improved steering |
| US7192427B2 (en) | 2002-02-19 | 2007-03-20 | Afx, Inc. | Apparatus and method for assessing transmurality of a tissue ablation |
| EP1551317A1 (en) * | 2002-10-04 | 2005-07-13 | Cook Urological Inc. | Rigid extractor with wire basket |
| US8043303B2 (en) * | 2002-10-04 | 2011-10-25 | Cook Medical Technologies Llc | Handle for interchangeable medical device |
| US8469993B2 (en) | 2003-06-18 | 2013-06-25 | Boston Scientific Scimed, Inc. | Endoscopic instruments |
| US20040260337A1 (en) | 2003-06-18 | 2004-12-23 | Scimed Life Systems, Inc. | Endoscopic instruments and methods of manufacture |
| US7588545B2 (en) | 2003-09-10 | 2009-09-15 | Boston Scientific Scimed, Inc. | Forceps and collection assembly with accompanying mechanisms and related methods of use |
| US7494501B2 (en) * | 2003-11-12 | 2009-02-24 | Applied Medical Resources Corporation | Overmolded grasper jaw |
| US8142347B2 (en) | 2003-11-20 | 2012-03-27 | Boston Scientific Scimed, Inc. | Self-orienting polypectomy snare device |
| US7942896B2 (en) | 2003-11-25 | 2011-05-17 | Scimed Life Systems, Inc. | Forceps and collection assembly and related methods of use and manufacture |
| US20050137585A1 (en) * | 2003-12-23 | 2005-06-23 | Jamie Landman | Back loading endoscopic instruments |
| US20050192592A1 (en) * | 2004-02-27 | 2005-09-01 | Cook Urological Incorporated | Self-tensioning handle for endoscopic device |
| US20060184198A1 (en) | 2005-01-31 | 2006-08-17 | Kms Biopsy, Llc | End effector for surgical instrument, surgical instrument, and method for forming the end effector |
| US7762960B2 (en) | 2005-05-13 | 2010-07-27 | Boston Scientific Scimed, Inc. | Biopsy forceps assemblies |
| WO2007056003A1 (en) | 2005-11-03 | 2007-05-18 | Vance Products Incorporated, D/B/A Cook Urological Incorporated | Articulating basket with simultaneous basket extension or basket retraction |
| US7918783B2 (en) | 2006-03-22 | 2011-04-05 | Boston Scientific Scimed, Inc. | Endoscope working channel with multiple functionality |
| US7998167B2 (en) | 2006-04-14 | 2011-08-16 | Ethicon Endo-Surgery, Inc. | End effector and method of manufacture |
| US8313500B2 (en) | 2006-04-14 | 2012-11-20 | Ethicon Endo-Surgery, Inc. | Endoscopic device |
| US7857827B2 (en) | 2006-04-14 | 2010-12-28 | Ethicon Endo-Surgery, Inc. | Endoscopic device |
| US20070244513A1 (en) * | 2006-04-14 | 2007-10-18 | Ethicon Endo-Surgery, Inc. | Endoscopic device |
| EP2083715B1 (en) * | 2006-11-30 | 2013-03-13 | Cook Medical Technologies LLC | Removable handle for medical device |
| US8025627B2 (en) * | 2008-05-13 | 2011-09-27 | Ken Freeman | Reusable biopsy forceps |
| US8025626B2 (en) * | 2008-05-13 | 2011-09-27 | Ken Freeman | Biopsy forceps with hold open jaw feature |
| EP3437571B1 (en) | 2009-12-22 | 2020-06-17 | Cook Medical Technologies LLC | Medical devices with detachable pivotable jaws |
| US10010336B2 (en) | 2009-12-22 | 2018-07-03 | Cook Medical Technologies, Inc. | Medical devices with detachable pivotable jaws |
| US8545519B2 (en) | 2009-12-22 | 2013-10-01 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| DE102010007194A1 (en) * | 2010-02-05 | 2011-08-11 | EPflex Feinwerktechnik GmbH, 72581 | Hand-operated functional hose element and operating handle for this |
| US8394120B2 (en) | 2010-05-04 | 2013-03-12 | Jacek Krzyzanowski | End effector assembly with increased clamping force for a surgical instrument |
| EP2627263B1 (en) | 2010-10-11 | 2016-12-07 | Cook Medical Technologies LLC | Medical devices with pivotable jaws |
| CN108742757B (en) | 2010-10-11 | 2021-08-27 | 库克医学技术有限责任公司 | Medical device with detachable pivotable jaws |
| EP2627264B1 (en) | 2010-10-11 | 2015-06-17 | Cook Medical Technologies LLC | Medical devices with detachable pivotable jaws |
| JP5681814B2 (en) | 2010-12-15 | 2015-03-11 | クック メディカル テクノロジーズ エルエルシーＣｏｏｋ Ｍｅｄｉｃａｌ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｌｃ | Medical device with removable pivotable jaws |
| EP3964146B1 (en) | 2011-01-31 | 2023-10-18 | Boston Scientific Scimed Inc. | Medical devices having releasable coupling |
| JP2014087378A (en) * | 2011-02-23 | 2014-05-15 | Olympus Medical Systems Corp | Treatment tool for endoscope |
| US9687273B2 (en) | 2013-09-11 | 2017-06-27 | Gimmi Gmbh | Endoscopic surgical instruments and related methods |
| US9820767B2 (en) | 2014-05-02 | 2017-11-21 | United States Endoscopy Group, Inc. | Endoscopic suture cutter |
| DE202014006075U1 (en) * | 2014-07-30 | 2014-11-20 | Matthias Meinhold | Gripper head for tick gripper (device for removing ticks) |
| US10603067B2 (en) | 2016-07-28 | 2020-03-31 | Boston Scientific Scimed, Inc. | Polypectomy snare devices |
| US10736646B2 (en) | 2017-02-06 | 2020-08-11 | Boston Scientific Scimed, Inc. | Stone capture devices and methods |
| DE102017210534A1 (en) | 2017-06-22 | 2018-12-27 | Epflex Feinwerktechnik Gmbh | Hand control handle for endoscopic instrument |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8415222U1 (en) * | 1984-09-13 | Maslanka, Harald, 7200 Tuttlingen | Surgical grasping instrument | |
| US2034785A (en) * | 1935-07-12 | 1936-03-24 | Wappler Frederick Charles | Endoscopic forceps |
| US4010737A (en) * | 1971-06-14 | 1977-03-08 | Vilaghy Miklos I | Bone biopsy instrument kit |
| US3895636A (en) * | 1973-09-24 | 1975-07-22 | William Schmidt | Flexible forceps |
| JPS5320957Y2 (en) * | 1973-11-14 | 1978-06-01 | ||
| JPS552966Y2 (en) * | 1974-02-08 | 1980-01-24 | ||
| US3964468A (en) * | 1975-05-30 | 1976-06-22 | The Board Of Trustees Of Leland Stanford Junior University | Bioptome |
| DE3012447C2 (en) * | 1980-03-31 | 1982-04-01 | Harald 7200 Tuttlingen Maslanka | Surgical grasper instrument |
| EP0165472B1 (en) * | 1984-05-18 | 1991-02-06 | Harald Maslanka | Surgical gripping instrument |
| DE3500444C2 (en) * | 1985-01-09 | 1986-10-16 | Aesculap-Werke Ag Vormals Jetter & Scheerer, 7200 Tuttlingen | Device for introducing an endoscope or a surgical tool into body cavities with a supply for a flushing medium and a suction device for this flushing medium |
-
1985
- 1985-10-28 US US06/792,093 patent/US4763668A/en not_active Expired - Fee Related
-
1986
- 1986-10-17 IL IL80354A patent/IL80354A0/en not_active IP Right Cessation
- 1986-10-20 CA CA000520847A patent/CA1306154C/en not_active Expired - Fee Related
- 1986-10-27 EP EP86308359A patent/EP0225045A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| IL80354A0 (en) | 1987-01-30 |
| EP0225045A1 (en) | 1987-06-10 |
| US4763668A (en) | 1988-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1306154C (en) | Partible forceps instrument for endoscopy | |
| US5893874A (en) | Surgical instrument | |
| US4493319A (en) | Ring applicator having floating inner tube | |
| US10610220B2 (en) | Surgical stapling apparatus | |
| CA2387141C (en) | Flexible biopsy jaw assembly | |
| JP3964466B2 (en) | Biopsy forceps instrument with irrigation and suction capabilities | |
| US4977900A (en) | Microsurgical forceps with cleaning fluid passage | |
| US6007560A (en) | Biopsy forceps having detachable handle and distal jaws | |
| US5782748A (en) | Endoscopic surgical instruments having detachable proximal and distal portions | |
| EP0577423B2 (en) | Endoscopic instrument system | |
| EP1256323B1 (en) | Easily detachable ultrasonic clamping device | |
| US5746759A (en) | Reusable endoscopic surgical instrument | |
| EP0647122B1 (en) | Reusable endoscopic surgical instrument | |
| US8221449B2 (en) | Surgical instrument with removable shaft apparatus and method | |
| US5370658A (en) | Microsurgical instrument having dexterous handle with interchangeable instrument heads | |
| EP0798985B1 (en) | Separable economically partially disposable flexible biopsy forceps | |
| US6368290B1 (en) | Disposable endoscopic biopsy device | |
| JPH0630942A (en) | Biopsy device | |
| US5707377A (en) | Ligation clip remover | |
| JPH0838485A (en) | Treating tool for endoscope | |
| AU2007203358B2 (en) | Right angle clip applier apparatus and method | |
| GB1560282A (en) | Surgical ligating instrument and method | |
| AU4593299A (en) | Disposable endoscopic biopsy device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |