Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3788318 A
Publication typeGrant
Publication dateJan 29, 1974
Filing dateJun 12, 1972
Priority dateJun 12, 1972
Publication numberUS 3788318 A, US 3788318A, US-A-3788318, US3788318 A, US3788318A
InventorsDusseau A, Kim S
Original AssigneeDusseau A, Kim S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Expandable cannular, especially for medical purposes
US 3788318 A
Abstract
An expandable tube, referred to herein as a cannula, is formed by arranging at least one sheet of thin flexible material to form a tube while providing teeth or the like on the interengaging surfaces to permit controlled expansion of the tube by adjusting the surfaces over one another.
Images(3)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent 1 [111 3,788,318 Jan. 29, 1974 Kim et al.

[54] EXPANDABLE CANNULAR, ESPECIALLY 3,044,461 7/1962 Murdock 128/4 FOR MEDICAL PURPOSES 3,509,883 5/1970 2,566,499 9/ 1 951 [76] Inventors: Sung S00 Kim, 4724 Imperial Park 1 559 737 11/1925 Dr., Fort Wayne, Ind. 46815; 3,545,430 12/1970 Figar 128/2.05 V Andress Dusseau, R.R. No. 1, Geneva 46740 Primary ExaminerDa1ton L. Truluck [22] Filed: June 12, 1972 Attorney, Agent, or Firm-Albert L. Jeffers; Roger M. 21 Appl. No.: 261,793 Rcken [52] US. Cl 128/2l4.4, 128/343, 128/348 [57] ABSTRACT An expandable tube, referred to herein as a cannula, is formed by arranging at least one sheet of thin flexi- 128/343 214 ble material to form a tube while providing teeth or the like on the mterengaglng surfaces to permit controlled expansion of the tube by adjusting the surfaces [56] References Cited over one another UNITED STATES PATENTS 447,761 3/1891 Clough 128/ 17 14 Claims, 10 Drawing Figures EXPANDABLE CANNULAR, ESPECIALLY FOR MEDICAL PURPOSES The present invention relates to an expandable tube, or cannula, especially for medical purposes.

Cannula are often used for medical purposes. A cannula may be defined as an elongated tube formed of plastic or metal large enough so that at least a small needle can be passed therethrough. A cannula is employed to provide access to a blood vessel or a body cavity to introduce fluid into the blood vessel or to withdraw fluid from a body cavity. In one case, a cannula is provided to give access to a vein with a tube being introduced into the vein through the cannula to remain therein during the supply of fluid to the vein.

In another case, such as Seldinger procedure, a cannula is introduced into a blood vessel and a wire is inserted through the cannula, whereupon the cannula is withdrawn and a larger cannula, or a catheter, is guided along the wire and introduced into the vessel.

Due to the great many purposes to which a cannula can be put, a variety of sizes of cannula is provided so as to be able to meet each situation. The placing of cannula is often a difficult procedure requiring the cut down procedure and highly skilled personnel and many times resulting in great discomfort to the patient.

With the foregoing in mind, a primary objective of the present invention is the provision of a cannula which can be radially expanded from a small diameter size to a larger diameter size.

Another object of the invention is the provision of a cannula which can be radially expanded thereby permitting the formation of a relatively large access passage from a preliminary relatively small puncture or incision.

Another object of the present invention is the provision of a cannula which is expandable and which thereby eliminates the need for surgical procedure to search for a vein or artery of ample size to receive a large nonexpandable cannula.

Still another object of the present invention is the provision of an expansible cannula which is relatively easy to use thereby permitting an emergency situation to be met rapidly and efficiently.

A further object of this invention is to provide the larger cannula through which a large catheter, such as diagnostic angiographic catheter, cardiac catheterization catheter or an electrode of a temporary pace maker, can be introduced to desired level of blood vessel thereby eliminating the necessity of performing the Seldinger procedure. I

BRIEF SUMMARY OF THE INVENTION According to the present invention, either a single thin flexible sheet, or multiple sheets, are formed to define a tubular configuration about a predetermined axis with portions of the sheet, or sheets, in overlapping face to face engagement. The overlapped portions of the sheet, or sheets, are provided with interengaging teeth, somewhat like saw teeth, which permit expansion of the cannula by movement of the aforementioned overlapping portions in one direction relative to each other while preventing movement thereof in the opposite direction.

The cannula may be formed of sheet metal, such as stainless steel, or it may advantageously be formed of plastic material. One end of the cannula is adapted for introduction into the body and the other end is provided with a guide ring having a flange and with the guide ring cooperating with control elements for controlling the expansion of the cannula.

The cannula istubular and open at both ends and is thereby adapted for receiving a piercing instrument for making a preliminary puncture in the body to receive the end of the cannula. The piercing instrument has an axial canal or bore for receiving a stylette which can be removed from the piercing instrument to indicate by blood flow that the piercing guide is in the proper location.

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 conjunction with the accompanying drawings in which:

FIG. 1 is a side elevational view of a cannula according to the present invention in minimum diameter position.

FIG. 2 is a view like FIG. 1 but shows the cannula in maximum expanded position.

FIG. 3 is a plan sectional view indicated by line III- III on FIG. 1 and showing details of construction of the cannula.

FIG. 4 is a view like FIG. 3 but shows a modification.

FIG. 5 is a view like FIG. 3 but shows a still further modification.

FIG. 6'is a view like FIG. 5 but shows the cannula in contracted position.

FIG. 7 is a view like FIG. 3 showing another modification.

FIG. 8 is a side view of a still further modification.

FIG. 9 is a section on line IXIX of FIG. 8.

FIG. 10 is a fragmentary perspective view of a portion of FIG. 8.

DETAILED DESCRIPTION OF THE INVENTION Referring to the drawings somewhat more in detail, the cannula shown in FIGS. 1 to 3 comprises an elongated tubular portion 10 open at both ends and having mounted on one end a guide ring 12 which is provided with slot means 14 through which extend one or more side bars, or finger piece means 16 which form the control means for controlling the expansion of the cannula.

Guide ring 12 is preferably provided with an upstanding flange 18. The cannula, when in collapsed position as shown in FIG. 1, is adapted for receiving a piercing instrument 20 introduced into the cannula from the guide ring end thereof and having a piercing point 22 projecting from the other end of the cannula.

When point 22 is introduced into the body, as for example, by piercing the skin and entering the vein or artery, the instrument will guide the tubular portion 10 of the cannula through the pierced aperture and into the artery or vein, whereupon the piercing instrument can be withdrawn and the cannula can then be expanded to the desired size.

FIG. 3 will show that tubular portion 10 is formed of two sheet elements 22 and 24 with each less than completely circular and which are coaxial with the axis 26 of tubular portion 10. Each of the elements 22 and 24 is provided on the inside near one end with teeth 28 and on the outside near the other end with teeth 30. The teeth 28 of each of the elements 22 and 24 cooperate with the teeth 30 on the other thereof to permit expanding of the cannula while preventing collapsing thereof so that in the event the cannula is subjected to external pressure when in use, it will not collapse.

It will be seen that the elements 22 and 24 are advantageously formed with a somewhat resilient plastic ma terial and could also comprise a metal, such as stainless steel, if so desired.

Each of the elements 22 and 24 is provided with a control post 32 extending radially therefrom and through a corresponding aperture 34 in guide ring 12. Further near the free outer end of each of the elements 22 and 24, there is provided the aforementioned side bar, or finger piece, 16 slidable in the respective slot 14 in guide ring 12.

It will be evident that the finger pieces 16 can be moved along the respective slots 14 provided therefor and thereby effect expansion of the cannula radially and that the cannula will remain in any adjusted position thereof, even though subjected to considerable external pressure.

In the arrangement of FIG. 4, disposed inside a guide ring 40 is an outer element 42 forming less than a complete circle and therein is an inner element 44 also forming somewhat less than a complete circle with the axial regions of separation of the ends of the elements diametrically opposite each other. Inner element 44 has external teeth 46 thereon and outer element 42 has internal teeth 44 thereon cooperating in the same manner as teeth 28 and 30 pertaining to the first described modification.

The free ends of the inner member are provided with respective finger pieces 48 which extend through circumferential slot means formed in the outer elements 42 and in guide ring 40 so that movement of finger pieces 48 away from each other will effect expansion of the cannula radially.

FIG. shows a modification similar to that of FIG. 4 and wherein there is disposed within guide ring 50 an inner toothed element 52 and an outer toothed element 54 with the elements cooperating in the same manner as described in connection with FIG. 4. However, in FIG. 5, inner element 52 has a control post 56 thereon extending through an aperture 58in guide ring 50 while the free ends of outer element 54 are provided with the finger pieces 60 moveable along slots 62 in guide ring 50 for expanding the cannula.

FIG. 6 shows the FIG. 5 modification in contracted position.

FIG. 7 shows a modification in which a single sheetlike flexible element 70 is wound up in the form of a spiral with the interengaging faces of the spiral having teeth 72 somewhat like saw teeth and so inclined as to permit the interengaged surfaces of the wound up sheet to move over each other in the expanding direction of the cannula while preventing movement in the opposite direction. In the modification of FIG. 7 the outer end of the cannula is surrounded by a guide ring 74 and the free outer end of element 70 is provided with a finger piece 76 extending radially through guide ring 74 and moveable circum ferentially thereof along slot 78.

Similarly, the inner end of the wound up sheet is provided with a finger piece 80 extending radially through the guide ring and circumferentially adjustable thereof along slot 82. Finger piece 80 also projects through a circumferential slot in the convolution of element 70 immediately radially outwardly therefrom to permit adjusting movements of finger piece 80.

At some intermediate point along the wound up element 72 there is provided a control post 84 fixed to the element and extending radially therefrom through an aperture 86 provided in guide ring 74.

In each of the modifications illustrated and described, the cannula is adapted to expand from an initial starting diameter, which can be made quite small and is locked in each position of radial expansion.

The cannula is provided, at the end opposite the end which is introduced into the body, with a guide ring having elements thereon and flanged for manipulation of the cannula and flanged for receiving a connecting portion such as connector to I.V. tubing or connector to syringe and to guide a piercing instrument or the like therein.

FIGS. 8, 9 and 10 show a modification adaptable to any of the foregoing modifications illustrated. In FIG. 8, the tubular portion 10 of the cannula, which may be made up of one or more sheets of flexible material, has thereon, at at least the outermost edge of the sheet means, a stiffening rod 90 extending axially along the edge of the sheet means and advantageously connected at its upper end to the finger piece or side bar pertaining to the respective sheet means.

More than one of the side rods 90 could be employed wherever stiffening of the tubular portion of the cannula was desired and wherever it was desired to effect fine control over the adjustment of the cannula over the entire length thereof.

Side rod 90 can be of any cross sectional configuration and may be round as shown in FIG. 10 and is adapted for being imbedded in the respective sheet means 92 to which it pertains so that no forwardly facing edge is formed by the end of the side rod. The side rod could, of course, be ribbon-like and it would be stiff in the circumferential direction of the cannula while remaining flexible in the lateral direction thereof.

Modifications may be made within the purview of the appended claims.

What is claimed is:

1. A cannula for insertion into the body vascular system comprising an elongated tubular portion open at both ends having slidably received therein a removable piercing instrument having a body piercing point protruding from one end of said elongated tubular portion, said tubular portion comprising at least two sheet elements concave toward the axis of said tubular portion, said sheet elements having circumferential portions thereof in overlapping face to face engagement along substantially the entire longitudinal length of said tubular portion, and interengaging teeth formed on the opposed faces of said circumferential portions of said sheet elements and also extending along at least a portion of the longitudinal length of said tubular portion; said teeth being circumferentially inclined to permit relative radial movement of said circumferential portions of said sheet elements in a direction to expand said tubular portion while preventing relative movement of said circumferential portions in the opposite direction, and adjustable means including means connected to said sheet elements and operable to adjust said overlapping regions relatively in at least the direction to increase the diameter of the tubular portion.

2. A cannula according to claim 1 in which each sheet element has teeth formed on the inside at a first circumferential portion at one end and on the outside at a second circumferential portion at the other end,

said elements being disposed with the said one end of each element overlapping the outside of the said other end of the other element.

3. A cannula according to claim 1 in which one said element is provided with teeth on the radially outer side and the other said element is provided with teeth on the radially inner side and the elements are disposed in concentric engagement with said one element inside said other element.

4. A cannula according to claim 1 in which said tubular portion comprises a single sheet element wound into a spiral form about the axis of said tubular portion and having the inside of the outer end and the outside of the inner end provided with interengaging teeth, said teeth being inclined to permit relative movement of said ends in a direction to expand said cannula while preventing relative movement thereof in the opposite direction.

5. A cannula according to claim 1 which includes a guide ring on said cannula at one end and said adjusting means comprises finger piece means connected to said tubular portion and adjustable circumferentially of said ring.

6. A cannula according to claim 1 which includes a guide ring at one end of said cannula surrounding said tubular portion, said adjusting means including finger piece means connected to said sheet means and projecting radially therefrom outwardly beyond said guide ring and adjustable circumferentially of said guide ring.

7. A cannula according to claim 6 which includes means anchoring at least one point along the circumference of said sheet means to said guide ring.

8. A cannula according to claim 6 which includes flange means at the guide ring end of said cannula.

9. A cannula according to claim 8 in which said flange means is attached to said guide ring.

10. A cannula according to claim 6 in which said guide ring is circumferentially slotted for receiving said finger piece means.

11. A cannula according to claim 6 which includes rod means extending axially along said sheet means in a region thereof circumferentially near said finger piece means.

12. A cannula according to claim 11 in which said rod means is connected to said finger piece means whereby the control action afforded by said finger piece means is effective over the entire axial length of said sheet means.

13. A cannula according to claim 12 in which said sheet means is a resilient plastic material and said rod means is imbedded therein.

14. A cannula according to claim 1 in which a circumferential portion of each said element is disposed inside the circumferential portion of the other said element, and means connected to at least the outer side edges of said sheet elements for adjusting said sheet elements relative to each other to vary the diameter of said tubular portion.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US447761 *Jun 23, 1890Mar 10, 1891 Speculum
US1559737 *Jun 28, 1922Nov 3, 1925Martin BockCatheter
US2566499 *Feb 14, 1950Sep 4, 1951Bruno RichterExpansile surgical needle
US3044461 *Jan 21, 1960Jul 17, 1962Barbara MurdockProcto-sigmoidoscope
US3509883 *Nov 29, 1967May 5, 1970Gen ElectricExpanding cannula
US3545430 *Mar 5, 1968Dec 8, 1970Ceskoslovenska Akademie VedAdjustable electrode arrangement for capacitance plethysmography
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3877429 *Nov 30, 1973Apr 15, 1975Rasumoff David LCatheter placement device
US4411655 *Nov 30, 1981Oct 25, 1983Schreck David MApparatus and method for percutaneous catheterization
US4451256 *Apr 28, 1982May 29, 1984Intermedicat GmbhCatheter set
US4572186 *Dec 7, 1983Feb 25, 1986Cordis CorporationVessel dilation
US4610671 *Mar 28, 1985Sep 9, 1986Luther Medical Products, Inc.Assembly of stylet and catheter
US4699611 *Apr 19, 1985Oct 13, 1987C. R. Bard, Inc.Biliary stent introducer
US4716901 *Sep 25, 1985Jan 5, 1988Pratt Burnerd International LimitedSurgical appliance for forming an opening through the skin
US4759748 *Sep 22, 1986Jul 26, 1988Raychem CorporationGuiding catheter
US4899729 *Aug 3, 1988Feb 13, 1990Gill Steven SExpansible cannula
US4921479 *Oct 2, 1987May 1, 1990Joseph GrayzelCatheter sheath with longitudinal seam
US4964854 *Jan 23, 1989Oct 23, 1990Luther Medical Products, Inc.Intravascular catheter assembly incorporating needle tip shielding cap
US5015239 *Mar 22, 1989May 14, 1991Browne Kevin FSheath introducer apparatus
US5125396 *Oct 5, 1990Jun 30, 1992Ray R CharlesSurgical retractor
US5201756 *Mar 6, 1992Apr 13, 1993Danforth Biomedical, Inc.Radially-expandable tubular elements for use in the construction of medical devices
US5230705 *Mar 13, 1992Jul 27, 1993Wilk Peter JMethod of intravenous catheterization device
US5246424 *Jun 5, 1992Sep 21, 1993Wilk Peter JDevice and method for use in obtaining access to an internal body organ
US5295994 *Nov 15, 1991Mar 22, 1994Bonutti Peter MActive cannulas
US5318588 *Feb 5, 1993Jun 7, 1994Danforth Biomedical, Inc.Radially-expandable tubular elements for use in the construction of medical devices
US5320611 *Feb 4, 1993Jun 14, 1994Peter M. BonuttiExpandable cannula having longitudinal wire and method of use
US5356390 *Sep 30, 1993Oct 18, 1994Becton, Dickinson And CompanyCatheter introducer assembly
US5389080 *Mar 31, 1993Feb 14, 1995Yoon; InbaeEndoscopic portal for use in endoscopic procedures and methods therefor
US5389081 *May 18, 1993Feb 14, 1995United States Surgical CorporationStabilizer for a valve assembly for introducing instruments into body cavities
US5395342 *Jul 26, 1990Mar 7, 1995Yoon; InbaeEndoscopic portal
US5417707 *Oct 29, 1993May 23, 1995Medtronic, Inc.Dilatation balloon protector with raised ribs
US5429609 *Mar 31, 1994Jul 4, 1995Yoon; InbaeEndoscopic portal for use in endoscopic procedures and methods therefor
US5441486 *Nov 9, 1994Aug 15, 1995Yoon; InbaeEndoscopic portal for use in endoscopic procedures and methods therefor
US5478318 *Aug 2, 1994Dec 26, 1995Yoon; InbaeMultiluminal endoscopic portal
US5490859 *Apr 29, 1993Feb 13, 1996Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5501694 *Mar 3, 1994Mar 26, 1996Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5571169 *Jun 7, 1993Nov 5, 1996Endovascular Instruments, Inc.Anti-stenotic method and product for occluded and partially occluded arteries
US5573517 *Jun 6, 1994Nov 12, 1996Peter M. BonuttiExpandable cannulas
US5622188 *Mar 13, 1995Apr 22, 1997Endovascular Instruments, Inc.Method of restoring reduced or absent blood flow capacity in an artery
US5662701 *Mar 13, 1995Sep 2, 1997Endovascular Instruments, Inc.Anti-stenotic method and product for occluded and partially occluded arteries
US5674240 *Jun 6, 1995Oct 7, 1997Peter M. BonuttiExpandable cannula
US5683370 *Nov 21, 1996Nov 4, 1997Luther Medical Products, Inc.Hard tip over-the-needle catheter and method of manufacturing the same
US5782847 *Aug 16, 1996Jul 21, 1998Endovascular Instruments, Inc.Anti-stenotic method for occluded and partially occluded arteries
US5792157 *Sep 30, 1996Aug 11, 1998Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5824057 *May 16, 1997Oct 20, 1998Endo-Vascular Instruments, Inc.Anti-stenotic method and product for occluded and partially occluded arteries
US5827319 *May 20, 1996Oct 27, 1998Innerdyne, Inc.Radially expandable access system having disposable and reusable components
US5836316 *Oct 15, 1996Nov 17, 1998Endovascular Instruments, Inc.Method of restoring reduced or absent blood flow capacity
US5836868 *Mar 25, 1996Nov 17, 1998Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5842479 *Oct 15, 1996Dec 1, 1998Endovascular Instruments, Inc.Method of restoring reduced or absent blood flow capacity
US5843165 *Oct 18, 1996Dec 1, 1998Endovascular Instruments, Inc.Method for increasing blood flow in vessels
US5865844 *Oct 26, 1995Feb 2, 1999Endovascular Instruments, Inc.Anti-stenotic method and product for occluded and partially occluded arteries
US5873905 *May 16, 1997Feb 23, 1999Endovascular Instruments, Inc.Anti-stenotic method and product for occluded and partially occluded arteries
US5882345 *May 22, 1996Mar 16, 1999Yoon; InbaeExpandable endoscopic portal
US5897567 *Sep 9, 1997Apr 27, 1999Scimed Life Systems, Inc.Expandable intravascular occlusion material removal devices and methods of use
US5904146 *Mar 5, 1998May 18, 1999Endovascular Instruments, Inc.Anti-stenotic method and product for occluded and partially occluded arteries
US5913848 *Jun 6, 1996Jun 22, 1999Luther Medical Products, Inc.Hard tip over-the-needle catheter and method of manufacturing the same
US5916208 *Nov 21, 1996Jun 29, 1999Luther Medical Products, Inc.Hard tip over-the-needle catheter and method of manufacturing the same
US5934284 *Mar 13, 1995Aug 10, 1999Endovascular Instruments, IncMethod for increasing blood flow in vessels
US5957893 *Sep 8, 1998Sep 28, 1999Becton Dickinson & Co.Hard tip over-the needle catheter and method of manufacturing the same
US5961499 *Jun 6, 1995Oct 5, 1999Peter M. BonuttiExpandable cannula
US6056772 *May 26, 1998May 2, 2000Bonutti; Peter M.Method and apparatus for positioning a suture anchor
US6083203 *Jan 6, 1995Jul 4, 2000Yoon; InbaeEndoscopic portal
US6090072 *Mar 14, 1996Jul 18, 2000Scimed Life Systems, Inc.Expandable introducer sheath
US6090135 *Oct 30, 1998Jul 18, 2000Endovascular Instruments, Inc.Anti-stenotic method and product for occluded and partially occluded arteries
US6183443Oct 26, 1998Feb 6, 2001Scimed Life Systems, Inc.Expandable introducer sheath
US6228068Feb 3, 1999May 8, 2001Inbae YoonExpandable endoscopic portal and methods therefor
US6245052Jul 8, 1998Jun 12, 2001Innerdyne, Inc.Methods, systems, and kits for implanting articles
US6277136Feb 18, 1999Aug 21, 2001General Surgical Innovations, Inc.Method for developing an anatomic space
US6338730Jun 6, 1995Jan 15, 2002Peter M. BonuttiMethod of using expandable cannula
US6358238Sep 2, 1999Mar 19, 2002Scimed Life Systems, Inc.Expandable micro-catheter
US6358266Oct 9, 1996Mar 19, 2002General Surgical Innovations, Inc.Active cannulas
US6364897Mar 22, 2000Apr 2, 2002Peter M. BonuttiMethod and apparatus for positioning a suture anchor
US6589225Mar 30, 2001Jul 8, 2003Innerdyne, Inc.Methods, systems, and kits for implanting articles
US6613038Nov 16, 2001Sep 2, 2003Bonutti 2003 Trust-AMethod of using expandable cannula
US6684886Jan 22, 2001Feb 3, 2004Prospine, Inc.Intervertebral disc repair methods and apparatus
US6692462Dec 11, 2000Feb 17, 2004Mackenzie Andrew J.System and method for establishing vascular access
US6814715Nov 16, 2001Nov 9, 2004Bonutti 2003 Trust AExpandable cannula
US6942684Feb 19, 2002Sep 13, 2005Bonutti Ip, LlcMethod and apparatus for positioning an anchor member
US6945933Jun 26, 2002Sep 20, 2005Sdgi Holdings, Inc.Instruments and methods for minimally invasive tissue retraction and surgery
US7056321Oct 25, 2002Jun 6, 2006Endius, IncorporatedMethod of securing vertebrae
US7166088 *Jan 27, 2003Jan 23, 2007Heuser Richard RCatheter introducer system
US7261688Apr 5, 2002Aug 28, 2007Warsaw Orthopedic, Inc.Devices and methods for percutaneous tissue retraction and surgery
US7300459Oct 17, 2003Nov 27, 2007Heuser Richard RStent with covering and differential dilation
US7311719Apr 8, 2003Dec 25, 2007General Surgical Innovations, Inc.Active cannulas
US7374567Jan 25, 2006May 20, 2008Heuser Richard RCatheter system for connecting adjacent blood vessels
US7402141Aug 25, 2004Jul 22, 2008Heuser Richard RCatheter guidewire system using concentric wires
US7449011Jul 31, 2002Nov 11, 2008Tyco Healthcare Group LpApparatus and method for providing percutaneous access and medicament to a target surgical site
US7473222Jun 15, 2005Jan 6, 2009Warsaw Orthopedic, Inc.Instruments and methods for minimally invasive tissue retraction and surgery
US7479150Sep 16, 2004Jan 20, 2009Tyco Healthcare Group LpTrocar insertion apparatus
US7513869Mar 3, 2004Apr 7, 2009Warsaw Orthopedic, Inc.Instruments and methods for minimally invasive tissue retraction and surgery
US7524285May 3, 2005Apr 28, 2009Warsaw Orthopedic, Inc.Instruments and methods for minimally invasive tissue retraction and surgery
US7625361 *Apr 26, 2004Dec 1, 2009Sumitomo Bakelite Company LimitedCatheter kit for burrow
US7699864 *May 7, 2004Apr 20, 2010Onset Medical CorporationExpandable medical access device
US7699877Aug 5, 2004Apr 20, 2010Zimmer Spine, Inc.Method of securing vertebrae
US7722530Oct 15, 2003May 25, 2010Zimmer Spine, Inc.Method of securing vertebrae
US7811303Aug 26, 2003Oct 12, 2010Medicine Lodge IncBodily tissue dilation systems and methods
US7850695Aug 12, 2004Dec 14, 2010Zimmer Spine, Inc.Method of securing vertebrae
US7879009 *Jan 29, 2010Feb 1, 2011Warsaw Orthopedic, Inc.Variable opening delivery system for intervertebral disc therapies
US7896897Nov 24, 2003Mar 1, 2011Tyco Healthcare Group LpSheath introduction apparatus and method
US7909843Jun 30, 2004Mar 22, 2011Thompson Surgical Instruments, Inc.Elongateable surgical port and dilator
US7914492Jan 22, 2007Mar 29, 2011Heuser Richard RCatheter introducer system
US7955355Jun 15, 2004Jun 7, 2011Stryker SpineMethods and devices for improving percutaneous access in minimally invasive surgeries
US7976463Jan 2, 2009Jul 12, 2011Warsaw Orthopedic, Inc.Instruments and methods for minimally invasive tissue retraction and surgery
US7981029Apr 6, 2009Jul 19, 2011Warsaw Orthopedic, Inc.Instruments and methods for minimally invasive tissue retraction and surgery
US7981030Jul 25, 2007Jul 19, 2011Warsaw Orthopedic, Inc.Devices and methods for percutaneous tissue retraction and surgery
US7985247Sep 9, 2003Jul 26, 2011Zimmer Spine, Inc.Methods and apparatuses for treating the spine through an access device
US7988624Dec 14, 2006Aug 2, 2011Warsaw Orthopedic, Inc.Devices and methods for percutaneous tissue retraction and surgery
US8002798Aug 12, 2005Aug 23, 2011Stryker SpineSystem and method for spinal implant placement
US8062321Apr 13, 2007Nov 22, 2011Pq Bypass, Inc.Catheter system for connecting adjacent blood vessels
US8100828Nov 24, 2003Jan 24, 2012George FreyDistraction and retraction system for spinal surgery
US8109958Jun 1, 2007Feb 7, 2012Neville AlleyneMethod and apparatus for spinal osteoligamentous resection
US8226554Oct 30, 2008Jul 24, 2012Warsaw Orthopedic, Inc.Retractor assemblies for surgery in a patient
US8277486Oct 20, 2003Oct 2, 2012Zimmer Spine, Inc.System for performing a procedure at a spinal location
US8480704Aug 14, 2009Jul 9, 2013Bhdl Holdings, LlcSurgical dilator, retractor and mounting pad
US8496657Aug 29, 2008Jul 30, 2013P Tech, Llc.Methods for utilizing vibratory energy to weld, stake and/or remove implants
US8540746Sep 14, 2012Sep 24, 2013Zimmer Spine, Inc.Cannula for receiving surgical instruments
US8545418Jan 20, 2009Oct 1, 2013Richard R. HeuserSystems and methods for ablation of occlusions within blood vessels
US8591466Nov 7, 2008Nov 26, 2013Covidien LpApparatus and method for providing percutaneous access and medicament to a target surgical site
US8617185Feb 13, 2008Dec 31, 2013P Tech, Llc.Fixation device
US8636656Aug 16, 2011Jan 28, 2014Warsaw Orthopedic, Inc.Retractor assemblies with blade drive mechanisms
US8685063May 4, 2011Apr 1, 2014Stryker SpineMethods and devices for improving percutaneous access in minimally invasive surgeries
US8728162Apr 15, 2011May 20, 2014Osteomed, LlcDirect lateral spine system instruments, implants and associated methods
US8747439Jul 10, 2006Jun 10, 2014P Tech, LlcMethod of using ultrasonic vibration to secure body tissue with fastening element
US8753368Feb 23, 2011Jun 17, 2014Covidien LpSheath introduction apparatus and method
US8758236May 9, 2012Jun 24, 2014Applied Medical Resources CorporationWound retractor
US8777997Sep 7, 2012Jul 15, 2014Zimmer Spine, Inc.Method for securing vertebrae
US8795326Oct 2, 2008Aug 5, 2014Covidien LpExpanding seal anchor for single incision surgery
US8808329Apr 3, 2012Aug 19, 2014Bonutti Skeletal Innovations LlcApparatus and method for securing a portion of a body
US8814902Jul 31, 2006Aug 26, 2014Bonutti Skeletal Innovations LlcMethod of securing body tissue
US8845687Sep 17, 2013Sep 30, 2014Bonutti Skeletal Innovations LlcAnchor for securing a suture
US8845699Mar 6, 2012Sep 30, 2014Bonutti Skeletal Innovations LlcMethod of securing tissue
US8864785Sep 10, 2012Oct 21, 2014Zimmer Spine, Inc.Method for securing vertebrae
US8870760Jul 1, 2013Oct 28, 2014Bhdl Holdings, LlcSurgical dilator, retractor and mounting pad
US8876710Mar 16, 2010Nov 4, 2014Covidien LpSurgical portal apparatus with expandable cannula
US8894655Sep 25, 2006Nov 25, 2014Stryker SpineRod contouring apparatus and method for percutaneous pedicle screw extension
US8926508Nov 11, 2010Jan 6, 2015Covidien LpAccess assembly with dual anchor and seal capabilities
US8968192Jun 6, 2008Mar 3, 2015Warsaw Orthopedic, Inc.Systems and methods for tissue retraction
US8979851Sep 25, 2013Mar 17, 2015Stryker SpineRod contouring apparatus for percutaneous pedicle screw extension
US8992558Apr 14, 2011Mar 31, 2015Osteomed, LlcLateral access system for the lumbar spine
US8992579Mar 8, 2012Mar 31, 2015Nuvasive, Inc.Lateral fixation constructs and related methods
US9055981Jan 25, 2008Jun 16, 2015Lanx, Inc.Spinal implants and methods
US9060767Mar 2, 2009Jun 23, 2015P Tech, LlcTissue fastener and methods for using same
US9060815Mar 15, 2013Jun 23, 2015Nuvasive, Inc.Systems and methods for performing spine surgery
US9067362Oct 31, 2007Jun 30, 2015P Tech, LlcMethod of using ultrasonic vibration to secure body tissue with fastening element
US9089323Feb 21, 2006Jul 28, 2015P Tech, LlcDevice and method for securing body tissue
US20020004680 *Aug 24, 2001Jan 10, 2002Mark PlaiaAnti-stenotic method and product for occluded and partially occluded arteries
US20040064147 *Sep 30, 2002Apr 1, 2004Struble Chester L.Introducer system having a reclosable split sheath for lead replacement
US20040082960 *Oct 20, 2003Apr 29, 2004Davison Thomas W.Method of securing vertebrae
US20040093003 *Nov 5, 2003May 13, 2004Mackenzie Andrew J.System and method for establishing vascular access
US20040143165 *Jan 7, 2004Jul 22, 2004Neville AlleyneIntervertebral disc repair methods and apparatus
US20040147877 *Jan 27, 2003Jul 29, 2004Heuser Richard RCatheter introducer system
US20040148005 *Oct 17, 2003Jul 29, 2004Heuser Richard R.Stent with covering and differential dilation
US20040172041 *Nov 24, 2003Sep 2, 2004Gresham Richard D.Sheath introduction apparatus and method
US20040176665 *Mar 3, 2004Sep 9, 2004Branch Charles L.Instruments and methods for minimally invasive tissue retraction and surgery
US20040176763 *Dec 15, 2003Sep 9, 2004Foley Kevin T.Methods for percutaneous surgery
US20040193113 *Jan 29, 2004Sep 30, 2004Durect CorporationExpandable bore injection needle
US20040193181 *Apr 7, 2004Sep 30, 2004Bonutti Peter M.Active cannulas
US20040199121 *Jul 31, 2002Oct 7, 2004Thomas WenchellApparatus and method for providing percutaneous access and medicament to a target surgical site
US20040236317 *Oct 15, 2003Nov 25, 2004Davison Thomas W.Method of securing vertebrae
US20050021030 *Aug 12, 2004Jan 27, 2005Endius IncorporatedMethod of securing vertebrae
US20050065517 *Jun 15, 2004Mar 24, 2005Chin Kingsley RichardMethods and devices for improving percutaneous access in minimally invasive surgeries
US20050080443 *Aug 26, 2003Apr 14, 2005Medicinelodge, Inc.Bodily tissue dilation systems and methods
US20050113833 *Sep 15, 2004May 26, 2005Davison Thomas W.Method of securing vertebrae
US20060241695Jul 10, 2006Oct 26, 2006Bonutti Peter MMethod of using ultrasonic vibration to secure body tissue with fastening element
US20090209913 *Mar 14, 2008Aug 20, 2009Elenor S.R.L.Trocar for thoracic surgery
USRE45338Aug 21, 2013Jan 13, 2015Stryker SpineSystem and method for spinal implant placement
DE19537118A1 *Oct 6, 1995Apr 10, 1997Paul Dipl Ing EsserBougie for enlarging body channels
WO2004030739A1 *Sep 25, 2003Apr 15, 2004Medtronic, Inc.Introducer system having a reclosable split sheath for lead replacement
WO2004067062A2 *Jan 28, 2004Aug 12, 2004Durect CorpExpandable bore injection needle
WO2005089433A2 *Mar 17, 2005Sep 29, 2005Onset Medical IncExpandable medical access device
WO2010099413A2Feb 26, 2010Sep 2, 2010Bhdl Holdings, LlcSurgical dilator, retractor and mounting pad
WO2012154845A1 *May 9, 2012Nov 15, 2012Applied Medical Resources CorporationWound retractor
Classifications
U.S. Classification604/164.3, 606/198, 604/104
International ClassificationA61M25/06, A61B17/34, A61M5/00
Cooperative ClassificationA61M25/0662, A61B17/3439, A61M5/00
European ClassificationA61M5/00