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Publication numberUS3789852 A
Publication typeGrant
Publication date5 Feb 1974
Filing date12 Jun 1972
Priority date12 Jun 1972
Publication numberUS 3789852 A, US 3789852A, US-A-3789852, US3789852 A, US3789852A
InventorsDusseau A, Kim S
Original AssigneeDusseau A, Kim S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Expandable trochar, especially for medical purposes
US 3789852 A
Abstract
An expandable tubular element, especially for use as a trochar, in which one or more thin metal strips, such as stainless steel, are arranged to form a tubular element with the tubular element being radially expandable and contractible.
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Description  (OCR text may contain errors)

United States Patent 1191 Kim et a1.

[451 Feb. 5, 1974 EXPANDABLE TROCHAR, ESPECIALLY FOR MEDICAL PURPOSES [76] Inventors: Sung Soo Kim, 4724 Imperial Park Dr., Fort Wayne, Ind. 46815; Andress Dusseau, R.R. No. 1, Geneva, 1nd. 46740 [22] Filed: June 12, 1972 21 Appl, No.: 261,794

[52] US. Cl. 128/347, 128/343 [51] Int. Cl A61b 17/34 [58] Field of Search 128/347 351, 341,

[56] References Cited UNITED STATES PATENTS 3,044,461 7/1962 Murdock 128/4 3,509,883 5/1970 Dibelius 128/348 2,812,758 11/1957 Blumenschein 128/20 447,761 3/1891 Clough 128/17 FOREIGN PATENTS OR APPLICATIONS 330,629 6/1930 Great Britain 128/3 Primary ExaminerDalton L. Truluck Attorney, Agent, or Firm-Albert L. Jeffers; Roger M. Rickert [5 7] ABSTRACT An expandable tubular element, especially for use as a trochar, in which one or more thin metal strips, such as stainless steel, are arranged to form a tubular element with the tubular element being radially expandable and contractible.

17 Claims, 12 Drawing Figures PATENTED FEB 5 I974 SHEET 1 BF 4 EXPANDABLE TROCIIAR, ESPECIALLY FOR MEDICAL PURPOSES The present invention relates to an expandable and contractible tubular element, especially for medical purposes and is referred to herein as a trochar.

Trochars are employed in medical and surgical practice for gaining access to interior regions of the body for the purpose of draining fluid therefrom, for the placement of treatment materials therein, or for the placement of catheters. Also, trochars are employed for examination purposes in connection with the placement of such instruments as a peritoneoscope or a thorascoscope. Trochars can be employed as suprapubic devices to drain distended bladders, or to place catheters therein.

Trochars are also employed in connection with the evacuation of fluid from the abdominal cavity, a procedure referred to as paracentesis, and for the evacuation of fluid from the plural cavity or the placement of a tube into the plural cavity, a procedure referred to as thoracentesis.

Most of the foregoing procedures in which a trochar is employed require the forming of an incision, or a puncture, in a certain body area and the introduction of the trochar into the body through the incision or puncture.

In any case, a high degree of skill is required to insert the trochar into the proper position, especially when the trochar is of substantial diameter. It will be evident, from the foregoing, that some trochars, especially those large enough to accommodate an instrument, such as an optical viewing instrument, must. be of substantial size and the placement of such trochars involves a high degree of skill on the part of the operator and involves considerable discomfort to the patient.

With the foregoing in mind, a primary objective of the present invention is the provision of a trochar which avoids the drawbacks and difficulties referred to above.

Another object of the present invention is the provision of a trochar which requires the minimum amount of skill for placement and involves the minimum amount of discomfort to the patient.

A particular object of the present invention is the provision of a trochar which can radially be expanded after placement.

Still another object of the present invention is the provision of a trochar which is radially expansible and which is also reusable.

It is also an object to provide an expandable trochar so constructed as to be able to receive a removable puncturing instrument which will form the puncture to receive the trochar and which will guide the trochar into position.

A still further object of the invention is the provision of an expandable trochar having a curved removable blunt shaped guiding portion which can be used as an urethral dilator or uterine dilator.

BRIEF SUMMARY OF THE INVENTION The expandable trochar according to the present invention comprises a tubular element, especially a stainless steelelement, which can be expanded in the radial direction.

Trochar has been defined in the dictionary as a sharp object guiding the introduction of a tube into a bodylike needle. In medicine and in this application the term trochar is used to define in combination a puncture guiding rod cooperating with a tube. Also, the tube can be referred to as a trochar when the puncture guiding rod is removed.

The trochar in its simplest form can be a strip of stainless steel or other suitable material wound up spirally to form the tube with the free ends of the thus wound up tube being movable in the circumferential direction to cause expansion and contraction of the trochar.

In another form which the trochar can take, two tubular stainless steel elements which are split in the longitudinal direction are placed in coaxial, coextensive, nesting relation and expansion and contraction of the trochar is accomplished by varying the diameter of the inner one of the split tubular elements.

In still another form, which the trochar can take, two i or more strips of stainless steel are folded back on themselves to form U-shaped members with about half of the length of each member commencing from the other end whereby, upon forming the members so as to be arcuate when viewed endwise, the members can be disposed in mutually telescopic engagement.

In this case, the diameter of the trochar is adjusted by adjusting the degree of telescopic engagement of the members with each other.

In yet another form which the trochar can take, a tubular stainless steel element is flattened out and is then formed to an arcuate configuration and the ends thereof are inserted between a pair of spaced parallel curved stainless steel strips to form the tubular trochar.

In this case, the diameter of the trochar is adjusted by adjusting the degree of telescopic engagement of the ends of the first mentioned sheet with the last two mentioned parallel sheets.

In every case, the trochar is tubular so that it can receive a removable piercing instrument. The trochar at the end opposite the end which is introduced into the body, has a guide ring which supports the elements of the trochar and permits manipulation thereof and the securing thereof to the body.

The foregoing objects as well as still other objects and advantages of the present invention will become more apparent upon reference to the following detailed specification taken in connection with the accompanying drawings in which:

FIG. 1 is a side elevational view of a trochar according to the present invention in radially collapsed position and with a puncture device mounted therein.

FIG. 2 is a side elevational view similar to FIG. 1 but showing the trochar in maximum expanded position.

FIG. 3 is a plan sectional view indicated by line III- III on FIG. 1.

FIG. 4 is a view like FIG. 3, but shows the trochar in maximum expanded condition. I

FIG. 5 is a fragmentary sectional view indicated by line V-V on FIG. 1, showing a guide member forming a part of the trochar.

FIG. 6 is a fragmentary plan view drawn at enlarged scale and-showing tab elements which limit the expand-' ability of the trochar.

FIG. 7 is a plan sectional view, showing a modified form which a trochar according to the present invention can take.

FIG. 8 is a plan sectional view, showing a further modification.

FIG. 9 is a plan sectional view, showing a still further modification. V

FIG. 10 is a plan sectional view of still another modification.

FIG. 11 is a fragmentary sectional view showing a device for locking the trochar in adjusted positions of expansion thereof.

FIG. 12 is a fragmentary view showing a modified form of the guiding portion for the trochar when used as a dilator.

DETAILED DESCRIPTION OF THE INVENTION Referring to the drawings somewhat more in detail, the trocharof FIGS. 1 through 6 will be seen to comprise a rather elongated tubular portion indicated at 10 which is contractible to its FIGS. 1 and 3 positions and expansible to its FIGS. 2 and 4 positions.

The trochar when in its FIG. 1 position is hollow from end to end and can receive a removable piercing instrument 12 with a piercing point, or needle, 14. The end of the tubular portion of the trochar which is adjacent point 14, may be beveled or tapered as at 15 to facilitate introduction of the trochar into a puncture made by point 14.

The end of the trochar opposite point 14, namely, the outer end of the trochar, is provided with a guide ring 16 which is flanged at 18 as shown in FIGS. 1 and 2. Guide ring 16 is provided with slot means 20 in which is slidable rod means or post means or finger piece means 22 extending in the radial direction of the trochar.

Reference to FIG. 3, will show more in detail the various elements of the trochar. The tubular portion 10 of the trochar is formed of two elements 24, each of which is a stainless steel strip or other suitable material folded back on itself so as to have a closed end at 26 and an open end at 28. Commencing at the closed end, about half the length of each element is formed to a smaller radial dimension, while the remainder of each element is formed to a larger radial dimension. Each element is formed concentrically about the longitudinal axis 30 of the trochar and the smaller end of each element telescopically engages the larger end of the other element. The elements are formed of thin corrosive resistant metal, such as stainless steel, and are thus flexible.

Attached to the larger end of each of the elements on the radially outer side is a post 32 extending radially outwardly through a pertaining aperture 34 in guide ring 16.

Also attached to each element near the closed end thereof and on the radial outer side is the rod or post, or finger piece, 22 extending radially outwardly through the circumferential slot 20 in guide ring 16 and also through a circumferential slot 40 in the radially outer side of the larger end of the other element. By manipulating finger pieces 22 along their slots 20, the degree of telescopic engagement of the elements with each other can be adjusted and this will adjust the diameter of the trochar. The finger pieces 22 are threaded at 21 and a lock nut 23 serves to lock the trochar in adjusted position.

FIG. 3 shows the trochar in maximum collapsed, minimum diameter, position and FIG. 4 shows the trochar in maximum expanded, maximum diameter, position and also shows the manner in which finger pieces 22 are adjusted in guide ring 16 to accomplish the expansion and contraction of the trochar.

It is advantageous for the closed end of each element to have connected thereto an angle piece, or side bar, 42 as shown in FIG. 5 extending outwardly through the adjacent slot 40 in the other element and then downwardly along the outside of the other element, thereby retaining the outer part of each of the said elements in close engagement with the inner part of the other element which is telescopically engaged therewith.

FIG. 6 will show that the free ends of the longer end of each element are advantageously provided with turned in edges, or tabs, 44 which cooperate with turned out tabs 46 near the closed ends of the other elements, thereby to limit the expanding movement of the trochar and to prevent the telescopically engaged elements from becoming disengaged.

FIG. 11 shows how a modified lock arrangement could be mounted on each finger piece 22 to lock the trochar in adjusted position. The lock arrangement comprises a nut 48 threaded to tubular element 50 so that the nut can be tightened up to clamp the respective finger piece 22 fixedly to guide ring 16 in any adjusted position of the finger piece.

In FIG. 7, a stainless steel tube is flattened out and formed to an arcuate shape to form a double walled tubular member as indicated at 60 with'the ends thereof telescopically engaged between a pair of parallel arcuate sheets 62 and 64. Finger pieces 66 on the ends of the element 60 are disposed in slots in sheet 64 and can be employed for adjusting the diameter of the trochar. In this modification, a spring 68 may be disposed between sheets 62 and 64 and engages the ends of element 60 when the diameter of the trochar is reduced and urges the said ends outwardly. The spring 68 may be omitted if desired and the finger pieces 66 can be utilized to expand the trochar.

FIG. 8 shows a modification similar to that first described except three folded sheet elements 70, 72 and 74 are arranged in telescopic engagement. The diameter of the trochar of FIG. 8 can be adjusted in the same manner as in respect of the first described modification, except that the FIG. 8 modification has three adjustable finger pieces 76, 78 and 80.

FIG. 9 shows a modification in which there is mounted within guide ring 82, an outer tubular element 84 split down one side at 85 while inside element 84 is an inner tubular element 86 split down the opposite side at 87. The free ends of inner element 86 are provided with finger pieces 88 extending radially through circumferential slots provided therefor in outer element 84 and guide ring 82 to permit expansion-and contraction of the trochar.

FIG. 10 shows a modification in which a single strip 90 of stainless steel is wound up in a spiral to form a tube with finger pieces 92 connected to the inner and of the spiral and extending radially outwardly through a slot formed in the other convolutions of the spirally wound sheet. A post 93 is provided and serves the same purpose as previously described. By adjusting the finger pieces relative to the outer end of the wound up sheet, the diameter of the trochar can be adjusted.

Finally, FIG. 12 shows a modification in which a blunt shaped guiding portion 96 having an obliqued or curved blunt tip portion 97 is provided for substitution of the sharp tipped piercing instrument 14. The trochar with the curved tip guiding portion 96 is used as a uterine or urethral dilator. After placement of the trochar in the desired position the tube can be expanded in the same manner as previously described.

All of the trochars described are tubular for receiving a puncturing or guiding instrument, and all are adjustable as to diameter, and all can be provided with locking means to lock the trochar in adjusted positions.

The invention has been described with reference to particular modifications but it will be understood that modifications may be made within the purview of the appended claims.

What is claimed is:

1. A trochar comprising an elongated tubular portion open at both ends having slidable received therein a removable piercing instrument having a body piercing point protruding from one end of said tubular portion, said tubular portion being formed of at least two thin expandable sheet elements concave toward the axis of said tubular portion and having the circumferential terminal regions in overlapping relation to define said tubular portion, and adjustable means disposed at the other end of the tubular portion including means connected to said concave elements for radially expanding and retracting the sheet elements to increase or decrease the diameter of the tubular portion substantially throughout the longitudinal length of the elongated tubular portion.

2. A trochar according to claim 1 wherein the piercing instrument is provided with a curved blunt tip portion protruding from one end of the tubular portion.

3. A trochar according to claim 1 in which one end of said tubular portion is adapted for insertion into the body, and a guide ring at the other end of said tubular portion supporting said sheet means and said adjustable means.

4. A trochar according to claim 3 in which said adjustable means includes at least one finger piece connected to said sheet elements and projecting radially outwardly therefrom, and circumferential slot elements formed in said guide ring and moveably receiving said finger piece means.

5. A trochar according to claim 3 in which said sheet means comprises at least two elements each of which is in the form of a sheet of metal doubled back on itself so as to have one end closed and the other open, each element having a smaller radial thickness extending from the closed end about half the circumferential length of the element and the remainder of the circumferential length of the element having a larger radial thickness, each element being concave toward the axis of the trochar and the closed end of each element telescopically engaging the open end of the element next adjacent thereto.

6. A trochar according to claim 5 in which stop tabs are provided on the opposite ends of said elements which interengage with-the stop tabs at the next adjacent element in the position of minimum telescopic engagement of said elements to prevent said elements from becoming disengaged from each other.

7. A trochar according-to claim 5 which includes a post fixed to the radially outer side near the open end of each element and projecting radially therefrom, an aperture in said guide ring for each post, a finger piece connected to each element near the closed end thereof and projecting radially therefrom, and slots formed in said guide ring and in the radially outer part of the radially trochar part of each element through which said finger pieces extend and along which said finger pieces are moveable.

8. A trochar according to claim 3 in which said sheet elements comprises a first sheet element concave toward the axis of said trochar, and second and third sheet elements concave toward the said of said trochar and in radially spaced relation and receiving therebetween the circumferential ends of said first sheet element.

9. A trochar according to claim 8 which includes a compression spring between said second and third sheet elements adapted to engage the circumferential ends of said first sheet element.

10. A trochar according to claim 8 in which said first sheet element comprises a double walled tubular memher which is thin in the radial direction of said trochar.

11. A trochar according to claim 3 in which said trochar includes flange means at the guide ring end thereof.

12. A trochar according to claim 11 in which said flanges are connected to the axially outwardly facing end of said guide ring.

13. A trochar according to claim 1 which includes means for locking said adjustable means in adjusted position thereof.

14. A trochar according to claim 1 in which said sheet means is formed of corrosion resistant metal- 15. A trochar according to claim 14 in which said metal is stainless steel.

16. A trochar according to claim 3 which includes retaining means retaining the overlapping regions of said sheet means in close face to face sliding engagement.

17. A trochar according to claim 16 in which each said retaining means comprises an element secured to the radially inner one of said sheet means and projecting outwardly therefrom and then axially along the outside of the radially outer one of said sheet means and slidably engaging the outside of said radially outer one of said sheet means.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent $789,852 Dated Februarv 5. 197A lnventofls) Sung Soo Kim and Andress Dusseau It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Col. 5, line 33, (Claim 3) "means" should be elements Col. 5, vline 38, (Claim 4) "elements" should be means Signed and sealed this L .th day of June 1971;. f,

(SEAL) Attest:

EDWARD M.FLETCHER,JR. Attesting Officer C. MARSHALL DANN Commissioner of Patents

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US447761 *23 Jun 189010 Mar 1891 Speculum
US2812758 *26 Jul 195512 Nov 1957Blumenschein John CSurgical retractor
US3044461 *21 Jan 196017 Jul 1962Barbara MurdockProcto-sigmoidoscope
US3509883 *29 Nov 19675 May 1970Gen ElectricExpanding cannula
GB330629A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4013080 *5 Jun 197522 Mar 1977Froning Edward CCannula connector and direction indicator means for injection system
US4449532 *30 Jun 198122 May 1984Karl StorzDilator to facilitate endoscope insertion into the body
US4535773 *26 Mar 198220 Aug 1985Inbae YoonSafety puncturing instrument and method
US4572186 *7 Dec 198325 Feb 1986Cordis CorporationVessel dilation
US4601713 *11 Jun 198522 Jul 1986Genus Catheter Technologies, Inc.Variable diameter catheter
US4710181 *10 Jun 19861 Dec 1987Genus Catheter Technologies, Inc.Variable diameter catheter
US4716901 *25 Sep 19855 Jan 1988Pratt Burnerd International LimitedSurgical appliance for forming an opening through the skin
US4738666 *28 Jan 198719 Apr 1988Genus Catheter Technologies, Inc.Variable diameter catheter
US4827925 *29 Jan 19889 May 1989Vilasi Joseph ACuffless adjustable endotracheal tube
US4899729 *3 Aug 198813 Feb 1990Gill Steven SExpansible cannula
US5057082 *4 Nov 198815 Oct 1991Plastic Injectors, Inc.Trocar assembly
US5125396 *5 Oct 199030 Jun 1992Ray R CharlesSurgical retractor
US5152754 *15 Feb 19916 Oct 1992Minnesota Mining And Manufacturing CompanyTrocar
US5183464 *17 May 19912 Feb 1993Interventional Thermodynamics, Inc.Radially expandable dilator
US5201756 *6 Mar 199213 Apr 1993Danforth Biomedical, Inc.Radially-expandable tubular elements for use in the construction of medical devices
US5217441 *27 Mar 19928 Jun 1993United States Surgical CorporationTrocar guide tube positioning device
US5226890 *13 Nov 199113 Jul 1993United States Surgical CorporationTissue gripping device
US5256147 *17 Jun 199226 Oct 1993Minnesota Mining And Manufacturing CompanyReusable trocar with easily replaceable obturator
US5263937 *11 Feb 199323 Nov 1993Shipp John ITrocar with profile to reduce insertion force
US5295994 *15 Nov 199122 Mar 1994Bonutti Peter MActive cannulas
US5318588 *5 Feb 19937 Jun 1994Danforth Biomedical, Inc.Radially-expandable tubular elements for use in the construction of medical devices
US5320611 *4 Feb 199314 Jun 1994Peter M. BonuttiExpandable cannula having longitudinal wire and method of use
US5330498 *17 Dec 199119 Jul 1994Hill John DBlood vessel occlusion trocar
US5330501 *3 Feb 199319 Jul 1994United States Surgical CorporationTissue gripping device for use with a cannula and a cannula incorporating the device
US5336206 *12 Apr 19939 Aug 1994United States Surgical CorporationTrocar penetration depth indicator and guide tube positioning device
US5338305 *25 Jun 199216 Aug 1994Minnesota Mining And Manufacturing CompanyTrocar
US5370625 *13 Apr 19936 Dec 1994United States Surgical CorporationTrocar guide tube positioning device
US5389080 *31 Mar 199314 Feb 1995Yoon; InbaeEndoscopic portal for use in endoscopic procedures and methods therefor
US5395342 *26 Jul 19907 Mar 1995Yoon; InbaeEndoscopic portal
US5429609 *31 Mar 19944 Jul 1995Yoon; InbaeEndoscopic portal for use in endoscopic procedures and methods therefor
US5431676 *5 Mar 199311 Jul 1995Innerdyne Medical, Inc.Trocar system having expandable port
US5441486 *9 Nov 199415 Aug 1995Yoon; InbaeEndoscopic portal for use in endoscopic procedures and methods therefor
US5458579 *25 Nov 199217 Oct 1995Technalytics, Inc.Mechanical trocar insertion apparatus
US5499996 *14 Mar 199419 Mar 1996Hill; John D.Blood vessel occlusion trocar
US5501694 *3 Mar 199426 Mar 1996Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5522838 *7 Jun 19954 Jun 1996Hill; John D.Blood vessel occlusion trocar
US5527337 *22 Feb 199418 Jun 1996Duke UniversityBioabsorbable stent and method of making the same
US5533977 *7 Mar 19959 Jul 1996Origin Medsystems, Inc.Trocar
US5538509 *31 Jan 199423 Jul 1996Richard-Allan Medical Industries, Inc.Trocar assembly
US5556412 *7 Jun 199517 Sep 1996Hill; John D.Blood vessel occlusion trocar
US5569290 *30 Jan 199529 Oct 1996Paul C. McAfeeMethod of and apparatus for laparoscopic or endoscopic spinal surgery using an unsealed anteriorly inserted transparent trochar
US5573517 *6 Jun 199412 Nov 1996Peter M. BonuttiExpandable cannulas
US5616131 *18 Apr 19951 Apr 1997Lasersurge, Inc.Apparatus and method for anchoring surgical instrumentation
US5674240 *6 Jun 19957 Oct 1997Peter M. BonuttiExpandable cannula
US5693072 *23 May 19952 Dec 1997Mcintosh; Charles L.Blunt tip surgical needle
US5743852 *15 Apr 199628 Apr 1998Johnson; William T. M.Speculums
US5749889 *13 Feb 199612 May 1998Imagyn Medical, Inc.Method and apparatus for performing biopsy
US5772628 *13 Feb 199630 Jun 1998Imagyn Medical, Inc.Surgical access device and method of constructing same
US5792157 *30 Sep 199611 Aug 1998Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5810776 *13 Feb 199622 Sep 1998Imagyn Medical, Inc.Method and apparatus for performing laparoscopy
US5814058 *14 Aug 199629 Sep 1998Innerdyne, Inc.Method and apparatus employing conformable sleeve for providing percutaneous access
US5827227 *17 Jul 199627 Oct 1998Delago; Augustin J.Catheter having a radially adjustable sheath
US5827319 *20 May 199627 Oct 1998Innerdyne, Inc.Radially expandable access system having disposable and reusable components
US5836868 *25 Mar 199617 Nov 1998Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5855566 *1 Jun 19955 Jan 1999Urohealth, Inc. (California)Trocar assembly
US5882345 *22 May 199616 Mar 1999Yoon; InbaeExpandable endoscopic portal
US5897567 *9 Sep 199727 Apr 1999Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5935103 *18 Jul 199710 Aug 1999Heartport, Inc.Blood vessel occlusion device
US5941852 *1 Jun 199524 Aug 1999Imagyn Medical Technologies California, Inc.Trocar assembly
US5941894 *18 Jul 199724 Aug 1999Heartport, Inc.Blood vessel occlusion device
US5944691 *4 Nov 199631 Aug 1999Cordis CorporationCatheter having an expandable shaft
US5961499 *6 Jun 19955 Oct 1999Peter M. BonuttiExpandable cannula
US5997505 *18 Jul 19977 Dec 1999Heartport, Inc.Method of cannulating an ascending aorta using a blood vessel occlusion device
US6056772 *26 May 19982 May 2000Bonutti; Peter M.Method and apparatus for positioning a suture anchor
US6080174 *19 Apr 199527 Jun 2000Innerdyne, Inc.Trocar system having expandable port
US6083203 *6 Jan 19954 Jul 2000Yoon; InbaeEndoscopic portal
US622461917 Sep 19961 May 2001Heartport, Inc.Blood vessel occlusion trocar having size and shape varying insertion body
US62280683 Feb 19998 May 2001Inbae YoonExpandable endoscopic portal and methods therefor
US6238431 *3 Feb 199729 May 2001Pannayiotis J. AsimacopoulosExtractable variably controlled diameter stent and method of using the same
US6319265 *5 May 200020 Nov 2001Cardiothoracic Systems, Inc.Dissecting retractor for harvesting vessels
US6325812 *4 Jan 20004 Dec 2001Innerdyne, Inc.Trocar system having expandable port
US63387306 Jun 199515 Jan 2002Peter M. BonuttiMethod of using expandable cannula
US636489722 Mar 20002 Apr 2002Peter M. BonuttiMethod and apparatus for positioning a suture anchor
US6494893 *12 Jun 200117 Dec 2002Innderdyne, Inc.Trocar system having expandable port
US649768722 Jun 200024 Dec 2002Erblan Surgical Inc.Safety trocar with progressive cutting tip guards and gas jet tissue deflector
US661303816 Nov 20012 Sep 2003Bonutti 2003 Trust-AMethod of using expandable cannula
US667663910 Feb 200013 Jan 2004Safe Conduct AbCannula
US669246211 Dec 200017 Feb 2004Mackenzie Andrew J.System and method for establishing vascular access
US670605010 May 199616 Mar 2004Emmanuil GiannadakisSystem of laparoscopic-endoscopic surgery
US680008430 Jan 20015 Oct 2004Endius IncorporatedMethod for performing a surgical procedure and a cannula for use in performing the surgical procedure
US68115589 May 20032 Nov 2004Endius IncorporatedMethod for performing a surgical procedure and a cannula for use in performing the surgical procedure
US681471516 Nov 20019 Nov 2004Bonutti 2003 Trust AExpandable cannula
US683789116 May 20034 Jan 2005Endius IncorporatedCannula for receiving surgical instruments
US694268419 Feb 200213 Sep 2005Bonutti Ip, LlcMethod and apparatus for positioning an anchor member
US698900331 Aug 200124 Jan 2006Conmed CorporationObturator and cannula for a trocar adapted for ease of insertion and removal
US700139716 May 200321 Feb 2006Endius IncorporatedCannula for receiving surgical instruments
US700494724 Jun 200228 Feb 2006Endius IncorporatedSurgical instrument for moving vertebrae
US703336916 May 200325 Apr 2006Endius, Inc.Cannula for receiving surgical instruments
US705632125 Oct 20026 Jun 2006Endius, IncorporatedMethod of securing vertebrae
US710870516 May 200319 Sep 2006Endius, Inc.Cannula for receiving surgical instruments
US714439310 Feb 20035 Dec 2006Dipoto Gene PStructure for receiving surgical instruments
US721048518 May 20041 May 2007C & J Holdings, LlcMethod for spinal surgery
US722327816 May 200329 May 2007Endius, Inc.Cannula for receiving surgical instruments
US72264512 Oct 20035 Jun 2007Shluzas Alan EMinimally invasive access device and method
US729413617 Sep 200213 Nov 2007Innerdyne, Inc.Trocar system having expandable port
US73117198 Apr 200325 Dec 2007General Surgical Innovations, Inc.Active cannulas
US734159423 Apr 200411 Mar 2008Endius IncorporatedSurgical instrument for moving vertebrae
US744901131 Jul 200211 Nov 2008Tyco Healthcare Group LpApparatus and method for providing percutaneous access and medicament to a target surgical site
US747915016 Sep 200420 Jan 2009Tyco Healthcare Group LpTrocar insertion apparatus
US753425027 Jun 200319 May 2009Cook Critical CareIntroducer sheath
US761844413 Sep 200417 Nov 2009Zimmer Spine, Inc.Surgical instrument for moving a vertebra
US764167015 Oct 20035 Jan 2010Zimmer Spine, Inc.Cannula for receiving surgical instruments
US764523213 May 200412 Jan 2010Zimmer Spine, Inc.Access device for minimally invasive surgery
US765501210 May 20042 Feb 2010Zimmer Spine, Inc.Methods and apparatuses for minimally invasive replacement of intervertebral discs
US765873926 Sep 20069 Feb 2010Zimmer Spine, Inc.Methods and apparatuses for stabilizing the spine through an access device
US767035416 May 20032 Mar 2010Zimmer Spine, Inc.Cannula for receiving surgical instruments
US76742735 Oct 20049 Mar 2010Zimmer Spine, Inc.Method for performing a surgical procedure and a cannula for use in performing the surgical procedure
US768237019 Sep 200323 Mar 2010Zimmer Spine, Inc.Surgical tool for use in expanding a cannula
US769112026 Aug 20046 Apr 2010Zimmer Spine, Inc.Access systems and methods for minimally invasive surgery
US7699864 *7 May 200420 Apr 2010Onset Medical CorporationExpandable medical access device
US76998775 Aug 200420 Apr 2010Zimmer Spine, Inc.Method of securing vertebrae
US77131932 May 200611 May 2010Onset Medical CorporationExpandable percutaneous sheath
US771327416 Dec 200411 May 2010Zimmer Spine, Inc.Surgical instrument for moving vertebrae
US772253015 Oct 200325 May 2010Zimmer Spine, Inc.Method of securing vertebrae
US773173724 Oct 20038 Jun 2010Zimmer Spine, Inc.Methods and apparatuses for fixation of the spine through an access device
US776693015 Oct 20033 Aug 2010Zimmer Spine, Inc.Cannula for receiving surgical instruments
US77806922 Jul 200424 Aug 2010Onset Medical CorporationExpandable percutaneous sheath
US779903631 Jul 200121 Sep 2010Zimmer Spine, Inc.Method and apparatus for securing vertebrae
US781130326 Aug 200312 Oct 2010Medicine Lodge IncBodily tissue dilation systems and methods
US78156503 May 200619 Oct 2010Zimmer Spine, Inc.Surgical instrument for moving vertebrae
US785069512 Aug 200414 Dec 2010Zimmer Spine, Inc.Method of securing vertebrae
US7857818 *30 Mar 200728 Dec 2010Warsaw Orthopedic, Inc.Method and apparatus for delivering an intervertebral disc implant
US78921713 May 200622 Feb 2011Zimmer Spine, Inc.Cannula for receiving surgical instruments
US78922038 Aug 200522 Feb 2011Onset Medical CorporationExpandable transluminal sheath
US78922493 May 200622 Feb 2011Zimmer Spine, Inc.Cannula for receiving surgical instruments
US789689724 Nov 20031 Mar 2011Tyco Healthcare Group LpSheath introduction apparatus and method
US790984330 Jun 200422 Mar 2011Thompson Surgical Instruments, Inc.Elongateable surgical port and dilator
US79145126 May 200829 Mar 2011Tyco Healthcare Group LpMethods, systems, and kits for implanting articles
US791455513 Jan 200629 Mar 2011Warsaw Orthopedic, Inc.Expandable percutaneous sheath
US795535515 Jun 20047 Jun 2011Stryker SpineMethods and devices for improving percutaneous access in minimally invasive surgeries
US79811328 Nov 200719 Jul 2011Tyco Healthcare Group LpSelf-conforming surgical seal
US79852185 Dec 200626 Jul 2011Zimmer Spine, Inc.Structure for receiving surgical instruments
US798523714 Nov 200326 Jul 2011Zimmer Spine, Inc.Cannula for receiving surgical instruments
US79852479 Sep 200326 Jul 2011Zimmer Spine, Inc.Methods and apparatuses for treating the spine through an access device
US798862330 May 20062 Aug 2011Zimmer Spine, Inc.Apparatus and methods for shielding body structures during surgery
US798866918 Dec 20092 Aug 2011Tyco Healthcare Group LpPort fixation with filament actuating member
US798870010 Mar 20082 Aug 2011Zimmer Spine, Inc.Surgical instrument for moving vertebrae
US800279812 Aug 200523 Aug 2011Stryker SpineSystem and method for spinal implant placement
US800749226 Oct 200430 Aug 2011Zimmer Spine, Inc.Cannula for receiving surgical instruments
US80168284 Jan 201013 Sep 2011Zimmer Spine, Inc.Methods and apparatuses for stabilizing the spine through an access device
US803407210 Aug 200511 Oct 2011Warsaw Orthopedic, Inc.Expandable percutaneous sheath
US80924815 Jun 200610 Jan 2012Onset Medical CorporationExpandable percutaneous sheath
US814246721 Apr 200827 Mar 2012Applied Medical Resources CorporationTamponade trocar device and method
US82413302 Nov 200714 Aug 2012Lanx, Inc.Spinous process implants and associated methods
US827748620 Oct 20032 Oct 2012Zimmer Spine, Inc.System for performing a procedure at a spinal location
US82826642 May 20069 Oct 2012Onset Medical CorporationExpandable percutaneous sheath
US829285126 Apr 200623 Oct 2012Ab Medica S.P.A.Radially expandable anchor guide for a trocar
US829287023 Jun 201123 Oct 2012Tyco Healthcare Group LpPort fixation with filament actuating member
US83178173 May 200627 Nov 2012Zimmer Spine, Inc.Cannula for receiving surgical instruments
US834889214 Jan 20118 Jan 2013Onset Medical CorporationExpandable transluminal sheath
US8398666 *26 Apr 200519 Mar 2013Teleflex Medical IncorporatedPenetrating tip for trocar assembly
US849665729 Aug 200830 Jul 2013P Tech, Llc.Methods for utilizing vibratory energy to weld, stake and/or remove implants
US854074614 Sep 201224 Sep 2013Zimmer Spine, Inc.Cannula for receiving surgical instruments
US857980922 Dec 200512 Nov 2013Symmetry Medical Manufacturing, Inc.Radially expanding surgical retractor
US85914667 Nov 200826 Nov 2013Covidien LpApparatus and method for providing percutaneous access and medicament to a target surgical site
US859727711 Mar 20113 Dec 2013Onset Medical CorporationExpandable transluminal sheath
US861718513 Feb 200831 Dec 2013P Tech, Llc.Fixation device
US20070270898 *26 May 200422 Nov 2007Lillehei Kevin OSurgical Cannula
US20090209913 *14 Mar 200820 Aug 2009Elenor S.R.L.Trocar for thoracic surgery
US20110065999 *7 May 200917 Mar 2011James ManzanaresMethod and apparatus for laterally accessing an intervertebral disc space
US20120029296 *29 Jul 20102 Feb 2012KYPHON SARL. A Limited Liability CompanyExpandable cannula assemblies for use in percutaneous surgical procedures
USRE4426820 Jul 20054 Jun 2013Zimmer Spine, Inc.Method and instruments for percutaneous arthroscopic disc removal, bone biopsy and fixation of the vertebral
DE3900329A1 *7 Jan 198919 Jul 1990Braun Melsungen AgBesteck zur punktion eines koerperhohlraumes
DE4115548A1 *13 May 199121 Nov 1991Storz KarlSurgical forceps for use in laparoscopy - have jaws of half cylinder form held closed by spring
EP0177177A2 *2 Sep 19859 Apr 1986Pratt Burnerd International LimitedA surgical appliance for forming an opening through the skin
EP0206553A129 May 198630 Dec 1986Steven Streatfield Gill.An expansible cannula
EP0535974A1 *2 Oct 19927 Apr 1993Ethicon Inc.Flexible trocar tube
EP0601537A1 *7 Dec 199315 Jun 1994Theodor EsserEndoscopic surgical instrument
EP0691824A1 *31 Mar 199417 Jan 1996YOON, InBaeEndoscopic portal for use in endoscopic procedures and methods therefor
EP0745351A2 *30 Oct 19914 Dec 1996McIntosh, Charles L.Blunt tip surgical needle
EP0919190A223 Nov 19982 Jun 1999Ethicon Endo-Surgery, Inc.Biopsy instrument with continuous tissue receiving chamber
EP0922753A24 Dec 199816 Jun 1999The Lubrizol CorporationPolyethoxylated alcohol-based phosphonates for metal working lubricants
EP2305156A2 *1 Jul 20036 Apr 2011Warsaw Orthopedic, Inc.Expandable percutaneous sheath
WO1986007267A1 *9 Jun 198618 Dec 1986Genus Catheter TechnologiesVariable diameter catheter
WO1992020399A1 *12 May 199218 Nov 1992Interventional ThermodynamicsRadially expandable dilator
WO1993007800A1 *16 Oct 199229 Apr 1993Gyno Medical Holdings Pty LtdA speculum
WO1994017845A1 *4 Feb 199418 Aug 1994Life Surgery IncTrocar with profile to reduce insertion force
WO1997029680A1 *13 Feb 199721 Aug 1997Imagyn Medical IncSurgical access device and method of constructing same
WO1997042889A1 *10 May 199620 Nov 1997Emmanuil GiannadakisSystem of laparoscopic-endoscopic surgery
WO1999049796A1 *5 Mar 19997 Oct 1999Bachmann Karl HeinzSleeve which serves as an instrument channel for minimally invasive surgery
WO2004002562A2 *27 Jun 20038 Jan 2004Cook Critical CareIntroducer sheath
WO2005089433A2 *17 Mar 200529 Sep 2005Onset Medical IncExpandable medical access device
WO2006047647A2 *26 Oct 20054 May 2006Dominguez LeonelExpandable surgical retractor system for minimal access surgery
WO2006117819A126 Apr 20069 Nov 2006Elenor S R LRadially expandable anchorage guide for trocars
WO2012154845A1 *9 May 201215 Nov 2012Applied Medical Resources CorporationWound retractor
Classifications
U.S. Classification604/104, 604/164.1, 606/198
International ClassificationA61M29/00, A61B17/06, A61B17/34
Cooperative ClassificationA61B2017/06085, A61B17/3439, A61M29/02, A61M2025/0024
European ClassificationA61M29/02, A61B17/34G4H