|Publication number||US3789852 A|
|Publication date||Feb 5, 1974|
|Filing date||Jun 12, 1972|
|Priority date||Jun 12, 1972|
|Publication number||US 3789852 A, US 3789852A, US-A-3789852, US3789852 A, US3789852A|
|Inventors||Dusseau A, Kim S|
|Original Assignee||Dusseau A, Kim S|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Referenced by (256), Classifications (12)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent 1191 Kim et a1.
[451 Feb. 5, 1974 EXPANDABLE TROCHAR, ESPECIALLY FOR MEDICAL PURPOSES  Inventors: Sung Soo Kim, 4724 Imperial Park Dr., Fort Wayne, Ind. 46815; Andress Dusseau, R.R. No. 1, Geneva, 1nd. 46740  Filed: June 12, 1972 21 Appl, No.: 261,794
 US. Cl. 128/347, 128/343  Int. Cl A61b 17/34  Field of Search 128/347 351, 341,
 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,
EDWARD M.FLETCHER,JR. Attesting Officer C. MARSHALL DANN Commissioner of Patents
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US447761 *||Jun 23, 1890||Mar 10, 1891||Speculum|
|US2812758 *||Jul 26, 1955||Nov 12, 1957||Blumenschein John C||Surgical retractor|
|US3044461 *||Jan 21, 1960||Jul 17, 1962||Barbara Murdock||Procto-sigmoidoscope|
|US3509883 *||Nov 29, 1967||May 5, 1970||Gen Electric||Expanding cannula|
|GB330629A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4013080 *||Jun 5, 1975||Mar 22, 1977||Froning Edward C||Cannula connector and direction indicator means for injection system|
|US4449532 *||Jun 30, 1981||May 22, 1984||Karl Storz||Dilator to facilitate endoscope insertion into the body|
|US4535773 *||Mar 26, 1982||Aug 20, 1985||Inbae Yoon||Safety puncturing instrument and method|
|US4572186 *||Dec 7, 1983||Feb 25, 1986||Cordis Corporation||Vessel dilation|
|US4601713 *||Jun 11, 1985||Jul 22, 1986||Genus Catheter Technologies, Inc.||Variable diameter catheter|
|US4710181 *||Jun 10, 1986||Dec 1, 1987||Genus Catheter Technologies, Inc.||Variable diameter catheter|
|US4716901 *||Sep 25, 1985||Jan 5, 1988||Pratt Burnerd International Limited||Surgical appliance for forming an opening through the skin|
|US4738666 *||Jan 28, 1987||Apr 19, 1988||Genus Catheter Technologies, Inc.||Variable diameter catheter|
|US4827925 *||Jan 29, 1988||May 9, 1989||Vilasi Joseph A||Cuffless adjustable endotracheal tube|
|US4899729 *||Aug 3, 1988||Feb 13, 1990||Gill Steven S||Expansible cannula|
|US5057082 *||Nov 4, 1988||Oct 15, 1991||Plastic Injectors, Inc.||Trocar assembly|
|US5125396 *||Oct 5, 1990||Jun 30, 1992||Ray R Charles||Surgical retractor|
|US5152754 *||Feb 15, 1991||Oct 6, 1992||Minnesota Mining And Manufacturing Company||Trocar|
|US5183464 *||May 17, 1991||Feb 2, 1993||Interventional Thermodynamics, Inc.||Radially expandable dilator|
|US5201756 *||Mar 6, 1992||Apr 13, 1993||Danforth Biomedical, Inc.||Radially-expandable tubular elements for use in the construction of medical devices|
|US5217441 *||Mar 27, 1992||Jun 8, 1993||United States Surgical Corporation||Trocar guide tube positioning device|
|US5226890 *||Nov 13, 1991||Jul 13, 1993||United States Surgical Corporation||Tissue gripping device|
|US5256147 *||Jun 17, 1992||Oct 26, 1993||Minnesota Mining And Manufacturing Company||Reusable trocar with easily replaceable obturator|
|US5263937 *||Feb 11, 1993||Nov 23, 1993||Shipp John I||Trocar with profile to reduce insertion force|
|US5295994 *||Nov 15, 1991||Mar 22, 1994||Bonutti Peter M||Active cannulas|
|US5318588 *||Feb 5, 1993||Jun 7, 1994||Danforth Biomedical, Inc.||Radially-expandable tubular elements for use in the construction of medical devices|
|US5320611 *||Feb 4, 1993||Jun 14, 1994||Peter M. Bonutti||Expandable cannula having longitudinal wire and method of use|
|US5330498 *||Dec 17, 1991||Jul 19, 1994||Hill John D||Blood vessel occlusion trocar|
|US5330501 *||Feb 3, 1993||Jul 19, 1994||United States Surgical Corporation||Tissue gripping device for use with a cannula and a cannula incorporating the device|
|US5336206 *||Apr 12, 1993||Aug 9, 1994||United States Surgical Corporation||Trocar penetration depth indicator and guide tube positioning device|
|US5338305 *||Jun 25, 1992||Aug 16, 1994||Minnesota Mining And Manufacturing Company||Trocar|
|US5370625 *||Apr 13, 1993||Dec 6, 1994||United States Surgical Corporation||Trocar guide tube positioning device|
|US5389080 *||Mar 31, 1993||Feb 14, 1995||Yoon; Inbae||Endoscopic portal for use in endoscopic procedures and methods therefor|
|US5395342 *||Jul 26, 1990||Mar 7, 1995||Yoon; Inbae||Endoscopic portal|
|US5429609 *||Mar 31, 1994||Jul 4, 1995||Yoon; Inbae||Endoscopic portal for use in endoscopic procedures and methods therefor|
|US5431676 *||Mar 5, 1993||Jul 11, 1995||Innerdyne Medical, Inc.||Trocar system having expandable port|
|US5441486 *||Nov 9, 1994||Aug 15, 1995||Yoon; Inbae||Endoscopic portal for use in endoscopic procedures and methods therefor|
|US5458579 *||Nov 25, 1992||Oct 17, 1995||Technalytics, Inc.||Mechanical trocar insertion apparatus|
|US5499996 *||Mar 14, 1994||Mar 19, 1996||Hill; John D.||Blood vessel occlusion trocar|
|US5501694 *||Mar 3, 1994||Mar 26, 1996||Scimed Life Systems, Inc.||Expandable intravascular occlusion material removal devices and methods of use|
|US5522838 *||Jun 7, 1995||Jun 4, 1996||Hill; John D.||Blood vessel occlusion trocar|
|US5527337 *||Feb 22, 1994||Jun 18, 1996||Duke University||Bioabsorbable stent and method of making the same|
|US5533977 *||Mar 7, 1995||Jul 9, 1996||Origin Medsystems, Inc.||Trocar|
|US5538509 *||Jan 31, 1994||Jul 23, 1996||Richard-Allan Medical Industries, Inc.||Trocar assembly|
|US5556412 *||Jun 7, 1995||Sep 17, 1996||Hill; John D.||Blood vessel occlusion trocar|
|US5569290 *||Jan 30, 1995||Oct 29, 1996||Paul C. McAfee||Method of and apparatus for laparoscopic or endoscopic spinal surgery using an unsealed anteriorly inserted transparent trochar|
|US5573517 *||Jun 6, 1994||Nov 12, 1996||Peter M. Bonutti||Expandable cannulas|
|US5616131 *||Apr 18, 1995||Apr 1, 1997||Lasersurge, Inc.||Apparatus and method for anchoring surgical instrumentation|
|US5674240 *||Jun 6, 1995||Oct 7, 1997||Peter M. Bonutti||Expandable cannula|
|US5693072 *||May 23, 1995||Dec 2, 1997||Mcintosh; Charles L.||Blunt tip surgical needle|
|US5743852 *||Apr 15, 1996||Apr 28, 1998||Johnson; William T. M.||Speculums|
|US5749889 *||Feb 13, 1996||May 12, 1998||Imagyn Medical, Inc.||Method and apparatus for performing biopsy|
|US5772628 *||Feb 13, 1996||Jun 30, 1998||Imagyn Medical, Inc.||Surgical access device and method of constructing same|
|US5792157 *||Sep 30, 1996||Aug 11, 1998||Scimed Life Systems, Inc.||Expandable intravascular occlusion material removal devices and methods of use|
|US5810776 *||Feb 13, 1996||Sep 22, 1998||Imagyn Medical, Inc.||Method and apparatus for performing laparoscopy|
|US5814058 *||Aug 14, 1996||Sep 29, 1998||Innerdyne, Inc.||Method and apparatus employing conformable sleeve for providing percutaneous access|
|US5827227 *||Jul 17, 1996||Oct 27, 1998||Delago; Augustin J.||Catheter having a radially adjustable sheath|
|US5827319 *||May 20, 1996||Oct 27, 1998||Innerdyne, Inc.||Radially expandable access system having disposable and reusable components|
|US5836868 *||Mar 25, 1996||Nov 17, 1998||Scimed Life Systems, Inc.||Expandable intravascular occlusion material removal devices and methods of use|
|US5855566 *||Jun 1, 1995||Jan 5, 1999||Urohealth, Inc. (California)||Trocar assembly|
|US5882345 *||May 22, 1996||Mar 16, 1999||Yoon; Inbae||Expandable endoscopic portal|
|US5897567 *||Sep 9, 1997||Apr 27, 1999||Scimed Life Systems, Inc.||Expandable intravascular occlusion material removal devices and methods of use|
|US5935103 *||Jul 18, 1997||Aug 10, 1999||Heartport, Inc.||Blood vessel occlusion device|
|US5941852 *||Jun 1, 1995||Aug 24, 1999||Imagyn Medical Technologies California, Inc.||Trocar assembly|
|US5941894 *||Jul 18, 1997||Aug 24, 1999||Heartport, Inc.||Blood vessel occlusion device|
|US5944691 *||Nov 4, 1996||Aug 31, 1999||Cordis Corporation||Catheter having an expandable shaft|
|US5961499 *||Jun 6, 1995||Oct 5, 1999||Peter M. Bonutti||Expandable cannula|
|US5997505 *||Jul 18, 1997||Dec 7, 1999||Heartport, Inc.||Method of cannulating an ascending aorta using a blood vessel occlusion device|
|US6056772 *||May 26, 1998||May 2, 2000||Bonutti; Peter M.||Method and apparatus for positioning a suture anchor|
|US6080174 *||Apr 19, 1995||Jun 27, 2000||Innerdyne, Inc.||Trocar system having expandable port|
|US6083203 *||Jan 6, 1995||Jul 4, 2000||Yoon; Inbae||Endoscopic portal|
|US6224619||Sep 17, 1996||May 1, 2001||Heartport, Inc.||Blood vessel occlusion trocar having size and shape varying insertion body|
|US6228068||Feb 3, 1999||May 8, 2001||Inbae Yoon||Expandable endoscopic portal and methods therefor|
|US6238431 *||Feb 3, 1997||May 29, 2001||Pannayiotis J. Asimacopoulos||Extractable variably controlled diameter stent and method of using the same|
|US6319265 *||May 5, 2000||Nov 20, 2001||Cardiothoracic Systems, Inc.||Dissecting retractor for harvesting vessels|
|US6325812 *||Jan 4, 2000||Dec 4, 2001||Innerdyne, Inc.||Trocar system having expandable port|
|US6338730||Jun 6, 1995||Jan 15, 2002||Peter M. Bonutti||Method of using expandable cannula|
|US6364897||Mar 22, 2000||Apr 2, 2002||Peter M. Bonutti||Method and apparatus for positioning a suture anchor|
|US6494893 *||Jun 12, 2001||Dec 17, 2002||Innderdyne, Inc.||Trocar system having expandable port|
|US6497687||Jun 22, 2000||Dec 24, 2002||Erblan Surgical Inc.||Safety trocar with progressive cutting tip guards and gas jet tissue deflector|
|US6613038||Nov 16, 2001||Sep 2, 2003||Bonutti 2003 Trust-A||Method of using expandable cannula|
|US6676639||Feb 10, 2000||Jan 13, 2004||Safe Conduct Ab||Cannula|
|US6692462||Dec 11, 2000||Feb 17, 2004||Mackenzie Andrew J.||System and method for establishing vascular access|
|US6706050||May 10, 1996||Mar 16, 2004||Emmanuil Giannadakis||System of laparoscopic-endoscopic surgery|
|US6800084||Jan 30, 2001||Oct 5, 2004||Endius Incorporated||Method for performing a surgical procedure and a cannula for use in performing the surgical procedure|
|US6811558||May 9, 2003||Nov 2, 2004||Endius Incorporated||Method for performing a surgical procedure and a cannula for use in performing the surgical procedure|
|US6814715||Nov 16, 2001||Nov 9, 2004||Bonutti 2003 Trust A||Expandable cannula|
|US6837891||May 16, 2003||Jan 4, 2005||Endius Incorporated||Cannula for receiving surgical instruments|
|US6942684||Feb 19, 2002||Sep 13, 2005||Bonutti Ip, Llc||Method and apparatus for positioning an anchor member|
|US6989003||Aug 31, 2001||Jan 24, 2006||Conmed Corporation||Obturator and cannula for a trocar adapted for ease of insertion and removal|
|US7001397||May 16, 2003||Feb 21, 2006||Endius Incorporated||Cannula for receiving surgical instruments|
|US7004947||Jun 24, 2002||Feb 28, 2006||Endius Incorporated||Surgical instrument for moving vertebrae|
|US7033369||May 16, 2003||Apr 25, 2006||Endius, Inc.||Cannula for receiving surgical instruments|
|US7056321||Oct 25, 2002||Jun 6, 2006||Endius, Incorporated||Method of securing vertebrae|
|US7108705||May 16, 2003||Sep 19, 2006||Endius, Inc.||Cannula for receiving surgical instruments|
|US7144393||Feb 10, 2003||Dec 5, 2006||Dipoto Gene P||Structure for receiving surgical instruments|
|US7210485||May 18, 2004||May 1, 2007||C & J Holdings, Llc||Method for spinal surgery|
|US7223278||May 16, 2003||May 29, 2007||Endius, Inc.||Cannula for receiving surgical instruments|
|US7226451||Oct 2, 2003||Jun 5, 2007||Shluzas Alan E||Minimally invasive access device and method|
|US7294136||Sep 17, 2002||Nov 13, 2007||Innerdyne, Inc.||Trocar system having expandable port|
|US7311719||Apr 8, 2003||Dec 25, 2007||General Surgical Innovations, Inc.||Active cannulas|
|US7341594||Apr 23, 2004||Mar 11, 2008||Endius Incorporated||Surgical instrument for moving vertebrae|
|US7449011||Jul 31, 2002||Nov 11, 2008||Tyco Healthcare Group Lp||Apparatus and method for providing percutaneous access and medicament to a target surgical site|
|US7479150||Sep 16, 2004||Jan 20, 2009||Tyco Healthcare Group Lp||Trocar insertion apparatus|
|US7534250||Jun 27, 2003||May 19, 2009||Cook Critical Care||Introducer sheath|
|US7618444||Sep 13, 2004||Nov 17, 2009||Zimmer Spine, Inc.||Surgical instrument for moving a vertebra|
|US7641670||Oct 15, 2003||Jan 5, 2010||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US7645232||May 13, 2004||Jan 12, 2010||Zimmer Spine, Inc.||Access device for minimally invasive surgery|
|US7655012||May 10, 2004||Feb 2, 2010||Zimmer Spine, Inc.||Methods and apparatuses for minimally invasive replacement of intervertebral discs|
|US7658739||Sep 26, 2006||Feb 9, 2010||Zimmer Spine, Inc.||Methods and apparatuses for stabilizing the spine through an access device|
|US7670354||May 16, 2003||Mar 2, 2010||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US7674273||Oct 5, 2004||Mar 9, 2010||Zimmer Spine, Inc.||Method for performing a surgical procedure and a cannula for use in performing the surgical procedure|
|US7682370||Sep 19, 2003||Mar 23, 2010||Zimmer Spine, Inc.||Surgical tool for use in expanding a cannula|
|US7691120||Aug 26, 2004||Apr 6, 2010||Zimmer Spine, Inc.||Access systems and methods for minimally invasive surgery|
|US7699864 *||May 7, 2004||Apr 20, 2010||Onset Medical Corporation||Expandable medical access device|
|US7699877||Aug 5, 2004||Apr 20, 2010||Zimmer Spine, Inc.||Method of securing vertebrae|
|US7713193||May 2, 2006||May 11, 2010||Onset Medical Corporation||Expandable percutaneous sheath|
|US7713274||Dec 16, 2004||May 11, 2010||Zimmer Spine, Inc.||Surgical instrument for moving vertebrae|
|US7722530||Oct 15, 2003||May 25, 2010||Zimmer Spine, Inc.||Method of securing vertebrae|
|US7731737||Oct 24, 2003||Jun 8, 2010||Zimmer Spine, Inc.||Methods and apparatuses for fixation of the spine through an access device|
|US7766930||Oct 15, 2003||Aug 3, 2010||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US7780692||Jul 2, 2004||Aug 24, 2010||Onset Medical Corporation||Expandable percutaneous sheath|
|US7799036||Jul 31, 2001||Sep 21, 2010||Zimmer Spine, Inc.||Method and apparatus for securing vertebrae|
|US7811303||Aug 26, 2003||Oct 12, 2010||Medicine Lodge Inc||Bodily tissue dilation systems and methods|
|US7815650||May 3, 2006||Oct 19, 2010||Zimmer Spine, Inc.||Surgical instrument for moving vertebrae|
|US7850695||Aug 12, 2004||Dec 14, 2010||Zimmer Spine, Inc.||Method of securing vertebrae|
|US7857818 *||Mar 30, 2007||Dec 28, 2010||Warsaw Orthopedic, Inc.||Method and apparatus for delivering an intervertebral disc implant|
|US7892171||May 3, 2006||Feb 22, 2011||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US7892203||Aug 8, 2005||Feb 22, 2011||Onset Medical Corporation||Expandable transluminal sheath|
|US7892249||May 3, 2006||Feb 22, 2011||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US7896897||Nov 24, 2003||Mar 1, 2011||Tyco Healthcare Group Lp||Sheath introduction apparatus and method|
|US7909843||Jun 30, 2004||Mar 22, 2011||Thompson Surgical Instruments, Inc.||Elongateable surgical port and dilator|
|US7914512||May 6, 2008||Mar 29, 2011||Tyco Healthcare Group Lp||Methods, systems, and kits for implanting articles|
|US7914555||Jan 13, 2006||Mar 29, 2011||Warsaw Orthopedic, Inc.||Expandable percutaneous sheath|
|US7955355||Jun 15, 2004||Jun 7, 2011||Stryker Spine||Methods and devices for improving percutaneous access in minimally invasive surgeries|
|US7981132||Nov 8, 2007||Jul 19, 2011||Tyco Healthcare Group Lp||Self-conforming surgical seal|
|US7985218||Dec 5, 2006||Jul 26, 2011||Zimmer Spine, Inc.||Structure for receiving surgical instruments|
|US7985237||Nov 14, 2003||Jul 26, 2011||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US7985247||Sep 9, 2003||Jul 26, 2011||Zimmer Spine, Inc.||Methods and apparatuses for treating the spine through an access device|
|US7988623||May 30, 2006||Aug 2, 2011||Zimmer Spine, Inc.||Apparatus and methods for shielding body structures during surgery|
|US7988669||Dec 18, 2009||Aug 2, 2011||Tyco Healthcare Group Lp||Port fixation with filament actuating member|
|US7988700||Mar 10, 2008||Aug 2, 2011||Zimmer Spine, Inc.||Surgical instrument for moving vertebrae|
|US8002798||Aug 12, 2005||Aug 23, 2011||Stryker Spine||System and method for spinal implant placement|
|US8007492||Oct 26, 2004||Aug 30, 2011||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US8016828||Jan 4, 2010||Sep 13, 2011||Zimmer Spine, Inc.||Methods and apparatuses for stabilizing the spine through an access device|
|US8034072||Aug 10, 2005||Oct 11, 2011||Warsaw Orthopedic, Inc.||Expandable percutaneous sheath|
|US8092481||Jun 5, 2006||Jan 10, 2012||Onset Medical Corporation||Expandable percutaneous sheath|
|US8142467||Apr 21, 2008||Mar 27, 2012||Applied Medical Resources Corporation||Tamponade trocar device and method|
|US8241330||Nov 2, 2007||Aug 14, 2012||Lanx, Inc.||Spinous process implants and associated methods|
|US8277486||Oct 20, 2003||Oct 2, 2012||Zimmer Spine, Inc.||System for performing a procedure at a spinal location|
|US8282664||May 2, 2006||Oct 9, 2012||Onset Medical Corporation||Expandable percutaneous sheath|
|US8292851||Apr 26, 2006||Oct 23, 2012||Ab Medica S.P.A.||Radially expandable anchor guide for a trocar|
|US8292870||Jun 23, 2011||Oct 23, 2012||Tyco Healthcare Group Lp||Port fixation with filament actuating member|
|US8317817||May 3, 2006||Nov 27, 2012||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US8348892||Jan 14, 2011||Jan 8, 2013||Onset Medical Corporation||Expandable transluminal sheath|
|US8398666 *||Apr 26, 2005||Mar 19, 2013||Teleflex Medical Incorporated||Penetrating tip for trocar assembly|
|US8496657||Aug 29, 2008||Jul 30, 2013||P Tech, Llc.||Methods for utilizing vibratory energy to weld, stake and/or remove implants|
|US8540746||Sep 14, 2012||Sep 24, 2013||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US8579809||Dec 22, 2005||Nov 12, 2013||Symmetry Medical Manufacturing, Inc.||Radially expanding surgical retractor|
|US8591466||Nov 7, 2008||Nov 26, 2013||Covidien Lp||Apparatus and method for providing percutaneous access and medicament to a target surgical site|
|US8597277||Mar 11, 2011||Dec 3, 2013||Onset Medical Corporation||Expandable transluminal sheath|
|US8617185||Feb 13, 2008||Dec 31, 2013||P Tech, Llc.||Fixation device|
|US8685063||May 4, 2011||Apr 1, 2014||Stryker Spine||Methods and devices for improving percutaneous access in minimally invasive surgeries|
|US8728162||Apr 15, 2011||May 20, 2014||Osteomed, Llc||Direct lateral spine system instruments, implants and associated methods|
|US8747439||Jul 10, 2006||Jun 10, 2014||P Tech, Llc||Method of using ultrasonic vibration to secure body tissue with fastening element|
|US8753368||Feb 23, 2011||Jun 17, 2014||Covidien Lp||Sheath introduction apparatus and method|
|US8758236||May 9, 2012||Jun 24, 2014||Applied Medical Resources Corporation||Wound retractor|
|US8764704||Dec 11, 2012||Jul 1, 2014||Onset Medical Corporation||Expandable transluminal sheath|
|US8777997||Sep 7, 2012||Jul 15, 2014||Zimmer Spine, Inc.||Method for securing vertebrae|
|US8795326||Oct 2, 2008||Aug 5, 2014||Covidien Lp||Expanding seal anchor for single incision surgery|
|US8808172 *||May 7, 2009||Aug 19, 2014||DePuy Synthes Products, LLC||Method and apparatus for laterally accessing an intervertebral disc space|
|US8808248 *||Oct 15, 2009||Aug 19, 2014||Biosense Webster, Inc.||Catheter sheath introducer with rotational lock|
|US8808329||Apr 3, 2012||Aug 19, 2014||Bonutti Skeletal Innovations Llc||Apparatus and method for securing a portion of a body|
|US8814902||Jul 31, 2006||Aug 26, 2014||Bonutti Skeletal Innovations Llc||Method of securing body tissue|
|US8834505||Mar 2, 2012||Sep 16, 2014||Applied Medical Resources Corporation||Tamponade trocar device and method|
|US8845687||Sep 17, 2013||Sep 30, 2014||Bonutti Skeletal Innovations Llc||Anchor for securing a suture|
|US8845699||Mar 6, 2012||Sep 30, 2014||Bonutti Skeletal Innovations Llc||Method of securing tissue|
|US8864785||Sep 10, 2012||Oct 21, 2014||Zimmer Spine, Inc.||Method for securing vertebrae|
|US8894655||Sep 25, 2006||Nov 25, 2014||Stryker Spine||Rod contouring apparatus and method for percutaneous pedicle screw extension|
|US8951277||Aug 21, 2014||Feb 10, 2015||Applied Medical Resources Corporation||Tamponade trocar device and method|
|US8968351||Sep 18, 2013||Mar 3, 2015||Zimmer Spine, Inc.||Cannula for receiving surgical instruments|
|US8979851||Sep 25, 2013||Mar 17, 2015||Stryker Spine||Rod contouring apparatus for percutaneous pedicle screw extension|
|US8992558||Apr 14, 2011||Mar 31, 2015||Osteomed, Llc||Lateral access system for the lumbar spine|
|US9055981||Jan 25, 2008||Jun 16, 2015||Lanx, Inc.||Spinal implants and methods|
|US9060767||Mar 2, 2009||Jun 23, 2015||P Tech, Llc||Tissue fastener and methods for using same|
|US9067362||Oct 31, 2007||Jun 30, 2015||P Tech, Llc||Method of using ultrasonic vibration to secure body tissue with fastening element|
|US9089323||Feb 21, 2006||Jul 28, 2015||P Tech, Llc||Device and method for securing body tissue|
|US9101353||Sep 15, 2004||Aug 11, 2015||Zimmer Spine, Inc.||Method of securing vertebrae|
|US20040078051 *||Oct 15, 2003||Apr 22, 2004||Davison Thomas W.||Cannula for receiving surgical instruments|
|US20040082960 *||Oct 20, 2003||Apr 29, 2004||Davison Thomas W.||Method of securing vertebrae|
|US20040093002 *||May 16, 2003||May 13, 2004||Davison Thomas W.||Cannula for receiving surgical instruments|
|US20040093003 *||Nov 5, 2003||May 13, 2004||Mackenzie Andrew J.||System and method for establishing vascular access|
|US20040097907 *||Oct 15, 2003||May 20, 2004||Dipoto Gene P.||Cannula for receiving surgical instruments|
|US20040098012 *||Nov 14, 2003||May 20, 2004||Davison Thomas W.||Cannula for receiving surgical instruments|
|US20040116954 *||Sep 19, 2003||Jun 17, 2004||Endius Inc.||Surgical tool for use in expanding a cannula|
|US20040133201 *||Sep 9, 2003||Jul 8, 2004||Alan Shluzas||Methods and apparatuses for treating the spine through an access device|
|US20040172041 *||Nov 24, 2003||Sep 2, 2004||Gresham Richard D.||Sheath introduction apparatus and method|
|US20040193113 *||Jan 29, 2004||Sep 30, 2004||Durect Corporation||Expandable bore injection needle|
|US20040193181 *||Apr 7, 2004||Sep 30, 2004||Bonutti Peter M.||Active cannulas|
|US20040199121 *||Jul 31, 2002||Oct 7, 2004||Thomas Wenchell||Apparatus and method for providing percutaneous access and medicament to a target surgical site|
|US20040199170 *||Apr 23, 2004||Oct 7, 2004||Endius Incorporated||Surgical instrument for moving vertebrae|
|US20040215199 *||May 18, 2004||Oct 28, 2004||Zinkel John M.||Method for spinal surgery|
|US20040230100 *||May 13, 2004||Nov 18, 2004||Shluzas Alan E.||Access device for minimally invasive surgery|
|US20040230155 *||Mar 5, 2004||Nov 18, 2004||Erblan Surgical Inc.||Insufflator and method of use|
|US20050021030 *||Aug 12, 2004||Jan 27, 2005||Endius Incorporated||Method of securing vertebrae|
|US20050033297 *||Aug 5, 2004||Feb 10, 2005||Davison Thomas W.||Method of securing vertebrae|
|US20050043754 *||Oct 5, 2004||Feb 24, 2005||Davison Thomas W.|
|US20050065517 *||Jun 15, 2004||Mar 24, 2005||Chin Kingsley Richard||Methods and devices for improving percutaneous access in minimally invasive surgeries|
|US20050075540 *||Oct 2, 2003||Apr 7, 2005||Shluzas Alan E.||Minimally invasive access device and method|
|US20050075644 *||May 10, 2004||Apr 7, 2005||Dipoto Gene||Methods and apparatuses for minimally invasive replacement of intervertebral discs|
|US20050080443 *||Aug 26, 2003||Apr 14, 2005||Medicinelodge, Inc.||Bodily tissue dilation systems and methods|
|US20050090822 *||Oct 24, 2003||Apr 28, 2005||Dipoto Gene||Methods and apparatus for stabilizing the spine through an access device|
|US20050090833 *||Oct 24, 2003||Apr 28, 2005||Dipoto Gene||Methods and apparatuses for fixation of the spine through an access device|
|US20050090899 *||Oct 24, 2003||Apr 28, 2005||Dipoto Gene||Methods and apparatuses for treating the spine through an access device|
|US20050113833 *||Sep 15, 2004||May 26, 2005||Davison Thomas W.||Method of securing vertebrae|
|US20050124937 *||Dec 5, 2003||Jun 9, 2005||Kick George F.||Expandable percutaneous sheath|
|US20050125021 *||Jul 2, 2004||Jun 9, 2005||Nance Edward J.||Expandable percutaneous sheath|
|US20050149106 *||Oct 26, 2004||Jul 7, 2005||Dipoto Gene P.||Cannula for receiving surgical instruments|
|US20050159757 *||Dec 16, 2004||Jul 21, 2005||Endius Incorporated||Surgical instrument for moving vertebrae|
|US20050203565 *||Sep 16, 2004||Sep 15, 2005||Rethy Csaba L.||Trocar insertion apparatus|
|US20050222576 *||May 7, 2004||Oct 6, 2005||Kick George F||Expandable medical access device|
|US20050240227 *||Jun 29, 2005||Oct 27, 2005||Bonutti Peter M||Method and apparatus for positioning an anchor member|
|US20050245958 *||Jul 6, 2005||Nov 3, 2005||Carlson John E||System and method for establishing vascular access|
|US20050245959 *||Jul 6, 2005||Nov 3, 2005||Carlson John E||System and method for establishing vascular access|
|US20050251190 *||Apr 26, 2005||Nov 10, 2005||Mcfarlane Richard H||Penetrating tip for trocar assembly|
|US20050273132 *||Aug 26, 2004||Dec 8, 2005||Shluzas Alan E||Access systems and methods for minimally invasive surgery|
|US20060004401 *||Jun 30, 2004||Jan 5, 2006||Abernathie Dennis L||Elongateable surgical port and dilator|
|US20060015075 *||Jul 1, 2005||Jan 19, 2006||Erblan Surgical Inc.||Guarded infusor needle and infusor locking system|
|US20060241695||Jul 10, 2006||Oct 26, 2006||Bonutti Peter M||Method of using ultrasonic vibration to secure body tissue with fastening element|
|US20070270898 *||May 26, 2004||Nov 22, 2007||Lillehei Kevin O||Surgical Cannula|
|US20090209913 *||Mar 14, 2008||Aug 20, 2009||Elenor S.R.L.||Trocar for thoracic surgery|
|US20110065999 *||May 7, 2009||Mar 17, 2011||James Manzanares||Method and apparatus for laterally accessing an intervertebral disc space|
|US20110092910 *||Apr 21, 2011||Jeffrey William Schultz||Catheter sheath introducer with rotational lock|
|US20120029296 *||Feb 2, 2012||KYPHON SARL. A Limited Liability Company||Expandable cannula assemblies for use in percutaneous surgical procedures|
|US20130184535 *||Jan 8, 2013||Jul 18, 2013||The Board Of Trustees Of The Leland Stanford Junior University||Expandable tissue retraction devices|
|US20140350471 *||Aug 11, 2014||Nov 27, 2014||Biosense Webster, Inc.||Catheter sheath introducer with rotational lock|
|USRE44268||Jul 20, 2005||Jun 4, 2013||Zimmer Spine, Inc.||Method and instruments for percutaneous arthroscopic disc removal, bone biopsy and fixation of the vertebral|
|USRE45338||Aug 21, 2013||Jan 13, 2015||Stryker Spine||System and method for spinal implant placement|
|DE3900329A1 *||Jan 7, 1989||Jul 19, 1990||Braun Melsungen Ag||Besteck zur punktion eines koerperhohlraumes|
|DE4115548A1 *||May 13, 1991||Nov 21, 1991||Storz Karl||Surgical forceps for use in laparoscopy - have jaws of half cylinder form held closed by spring|
|EP0177177A2 *||Sep 2, 1985||Apr 9, 1986||Pratt Burnerd International Limited||A surgical appliance for forming an opening through the skin|
|EP0206553A1||May 29, 1986||Dec 30, 1986||Steven Streatfield Gill.||An expansible cannula|
|EP0535974A1 *||Oct 2, 1992||Apr 7, 1993||Ethicon Inc.||Flexible trocar tube|
|EP0601537A1 *||Dec 7, 1993||Jun 15, 1994||Theodor Esser||Endoscopic surgical instrument|
|EP0691824A1 *||Mar 31, 1994||Jan 17, 1996||YOON, InBae||Endoscopic portal for use in endoscopic procedures and methods therefor|
|EP0745351A2 *||Oct 30, 1991||Dec 4, 1996||McIntosh, Charles L.||Blunt tip surgical needle|
|EP0919190A2||Nov 23, 1998||Jun 2, 1999||Ethicon Endo-Surgery, Inc.||Biopsy instrument with continuous tissue receiving chamber|
|EP0922753A2||Dec 4, 1998||Jun 16, 1999||The Lubrizol Corporation||Polyethoxylated alcohol-based phosphonates for metal working lubricants|
|EP2305156A2 *||Jul 1, 2003||Apr 6, 2011||Warsaw Orthopedic, Inc.||Expandable percutaneous sheath|
|EP2889012A1||Dec 24, 2014||Jul 1, 2015||Critical Innovations, LLC||Percutaneous access pathway system|
|WO1986007267A1 *||Jun 9, 1986||Dec 18, 1986||Genus Catheter Technologies||Variable diameter catheter|
|WO1993007800A1 *||Oct 16, 1992||Apr 29, 1993||Gyno Medical Holdings Pty Ltd||A speculum|
|WO1994017845A1 *||Feb 4, 1994||Aug 18, 1994||Life Surgery Inc||Trocar with profile to reduce insertion force|
|WO1997029680A1 *||Feb 13, 1997||Aug 21, 1997||Imagyn Medical Inc||Surgical access device and method of constructing same|
|WO1997042889A1 *||May 10, 1996||Nov 20, 1997||Emmanuil Giannadakis||System of laparoscopic-endoscopic surgery|
|WO1999049796A1 *||Mar 5, 1999||Oct 7, 1999||Bachmann Karl Heinz||Sleeve which serves as an instrument channel for minimally invasive surgery|
|WO2004002562A2 *||Jun 27, 2003||Jan 8, 2004||Cook Critical Care||Introducer sheath|
|WO2005089433A2 *||Mar 17, 2005||Sep 29, 2005||Onset Medical Inc||Expandable medical access device|
|WO2006047647A2 *||Oct 26, 2005||May 4, 2006||Dominguez Leonel||Expandable surgical retractor system for minimal access surgery|
|WO2006117819A1||Apr 26, 2006||Nov 9, 2006||Elenor S R L||Radially expandable anchorage guide for trocars|
|WO2012154845A1 *||May 9, 2012||Nov 15, 2012||Applied Medical Resources Corporation||Wound retractor|
|U.S. Classification||604/104, 604/164.1, 606/198|
|International Classification||A61M29/00, A61B17/06, A61B17/34|
|Cooperative Classification||A61B2017/06085, A61B17/3439, A61M29/02, A61M2025/0024|
|European Classification||A61M29/02, A61B17/34G4H|