Anastomosis catheter

• US 5,545,171 A
• Filed: 09/22/1994
• Issued: 08/13/1996
• Est. Priority Date: 09/22/1994
• Status: Expired due to Term

• Current Assignee: Venture Lending & Leasing, Inc. (Westech Investment Management, Inc.)
• Original Assignee: Vidamed, Inc. (Medtronic Plc)
• Inventors: Sharkey, Hugh R., Goldwasser, Benad, Edwards, Stuart D.
• Primary Examiner(s): Jackson, Gary
• Application Number:
  US08/310,684
• Time in Patent Office: 691 Days
• Field of Search: 606/148, 606/139, 606/151, 623/1, 623/11, 623/12
• US Class Current: 606/148
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 2017/06057 Double-armed sutures, i.e. sutures having a needle attached to each end
• CPC Class Codes: A61B 2017/1135 End-to-side connections, e.g. T- or Y-connections
• CPC Class Codes: A61B 2017/22077 with a part piercing the tissue A61B2017/22044 takes precedence

Abstract

According to the present invention, an anastomosis catheter with internally mounted cam pieces holding a plurality of curved needles adjacent apertures in the side of the catheter is provided. The curved needles are attached to lengths of suture material which are installed to run along the outer surface of the central cam pieces to their distal end, where they reverse back along the inner core of the catheter. When the central cam pieces are withdrawn, and moved proximally, the cam surface forces the curved needles out the associated apertures. As the catheter is deployed in a hollow organ, such as a human urethra, the curved needles, as they are deployed, grasp the end of the urethra, which then can be held in position for suturing to the bladder. The other end of the suture materials could have straight needles attached to them to facilitate attaching the urethra to the bladder.

Claims

1. A medical probe device comprising;

a hollow catheter including at least one needle aperture in a side thereof for directing a suture needle outward through at least said one needle aperture and through adjacent tissue;

a suture needle positioned in at least one of said apertures;

a deployment apparatus for deploying said at least one suture needle outward through at least one of said apertures, said deployment apparatus including a cam section device, said cam section device positioned in said hollow catheter to permit longitudinal movement of said cam section device in said hollow catheter, said cam device including a cam surface, wherein said cam surface of said cam section device contacts said suture needle upon activation, said cam surface operating to urge said needle outward of said needle aperture upon longitudinal movement of said cam section device.

2. The medical probe device of claim 1 wherein said suture needle is curved such that said curve approximates that of said cam surface of said cam section device, said needle riding in the space defined by said cam surface prior to activation of said deployment apparatus, and said needle riding up on said cam surface and outward of said needle aperture upon said longitudinal movement of said cam section device.

3. The medical probe device of claim 2 wherein said suture needle has a distal end and a proximal end, said distal end having a sharp tip and moved outward of said needle aperture, and said proximal end being attached to suture material.

4. The medical probe device of claim 3 further including a slot in said side of said catheter running from said needle aperture to the distal end of said catheter, said slot allowing the removal of said suture material from said catheter subsequent to deployment of said suture needle.

5. The medical probe device of claim 4, wherein said suture needle is positioned within said catheter with the proximal end of said suture needle facing toward the distal end of said catheter, the suture material attached to said needle being positioned longitudinally forward within said catheter toward the distal end thereof and around said cam section device and back through the center section of said catheter toward the proximal end of said catheter, wherein a loop of said suture material remains beyond the distal end of said catheter subsequent to the deployment of said suture needle.

6. The medical probe device of claim 5 further including a second suture needle attached to the other end of said suture material, wherein the suture material and the second needle is removable from said catheter via said slot.

7. The medical probe device of claim 6 wherein said suture needle is deployed upon distal movement of said cam section device within said catheter.

8. A medical probe device comprising:

a hollow catheter having a plurality of needle apertures in the side thereof for directing a plurality of suture needles outward through said needle apertures and through adjacent tissue;

a suture needle positioned in at least one of said apertures; and

a deployment apparatus for deploying said suture needles outward through said apertures, said deployment apparatus comprising a wedge segment cylinder device within said catheter, said wedge segment cylinder device comprising a plurality of wedge segment devices within said hollow catheter for urging said suture needle out of said needle aperture upon activation of said deployment apparatus.

9. The medical probe device of claim 8 wherein said wedge segment cylinder device comprises a plurality of wedge segment devices positioned in a cylinder shape and radially within said catheter, each of said wedge segment devices comprising a cam segment device and cam section device combinations.

10. The medical probe device of claim 9 wherein said cam segment device and said cam section devices are generally of complementary cam shapes such that in one position, said cam segment device and said cam section devices are substantially in a mating configuration.

11. The medical probe device of claim 10 wherein said cam segment devices are positioned for longitudinal movement thereof in said catheter, each of said cam segment devices having at least one cam surface.

12. The medical probe device of claim 11 wherein said cam surfaces of said cam segment device contacts said suture needles upon activation, said cam surfaces operating to urge said needles outward of said needle apertures upon longitudinal movement of said cam segment device.

13. The medical probe device of claim 12 wherein said suture needles are curved such that said curve approximates that of said cam surface of said cam segment device, said needles riding in the space defined by the space between said cam segment device and said cam section devices prior to activation of said deployment apparatus, and said needles riding up on said cam surface and outward of said needle apertures upon said longitudinal movement of said cam segment device.

14. The medical probe device of claim 13 wherein each of said suture needles have a distal end and a proximal end, said distal end having a sharp tip and moved outward of said needle aperture, and said proximal end being attached to suture material.

15. The medical probe device of claim 14 further including a plurality of slots in said side of said catheter running from said needle apertures to the distal end of said catheter, said slots allowing the removal of said suture material from said catheter subsequent to deployment of said suture needles.

16. The medical probe device of claim 15 wherein said wedge segment devices are selectively activated to individually deploy said suture needles.

17. The medical probe device of claim 16, wherein said suture needles are positioned within said catheter with the proximal ends of said suture needles facing toward the distal end of said catheter, the suture material attached to each of said suture needles being positioned longitudinally forward within said catheter toward the distal end thereof and around said wedge segment device and back through the center section of said catheter toward the proximal end thereof, wherein a loop of said suture material remains beyond the distal end of said catheter subsequent to the deployment of said suture needles.

18. The medical probe device of claim 17 further including a plurality of second suture needles attached to the other end of each of said suture material, wherein the suture material and the second needles are removable from said catheter via said slots.

19. The medical probe device of claim 18 wherein the cam section devices are fixedly attached within said catheter.

20. The medical probe device of claim 19 wherein said suture needles are deployed upon distal movement of said cam segment device within said catheter.

21. The medical probe device of claim 19 wherein said suture needles are deployed upon proximal movement of said cam segment device within said catheter.

22. A medical probe device for assisting in joining together two or more body parts comprising:

a hollow catheter having a plurality of needle apertures in a side thereof for directing suture needles outward through said needle apertures and through adjacent tissue;

a deployment apparatus for deploying each suture needle outward through said needle apertures, said deployment apparatus comprising individual cam sections within said hollow catheter for urging each suture needle out of said needle aperture upon deployment thereof, each of said cam sections having at least one cam surface and being positioned for longitudinal movement thereof in said catheter, wherein said cam surface contacts said suture needle upon activation, said cam surface operating to urge said needle outward of said needle aperture upon longitudinal movement of said cam section,

a suture needle positioned in each of said apertures, each said suture needle being curved such that said curve approximates that of the curve of the cam surface of said cam sections, each said needle riding in the space defined by said cam surface prior to activation by said deployment apparatus, and said needle riding up on said cam surface and outward of said needle aperture upon said longitudinal movement of said cam sections, each said suture needle having a distal end and a proximal end, said distal end having a sharp tip and moved outward of said needle aperture, and said proximal end being attached to suture material; and

a plurality of slots in the side of said catheter running from each said needle aperture to the distal end of said catheter, said slots allowing the removal of said suture material from said catheter subsequent to deployment of said suture needle, wherein said suture needle is positioned within said catheter with the proximal end of said suture needle facing toward the distal end of said catheter, the suture material attached to said needle being positioned longitudinally forward within said catheter toward the distal end thereof and around said cam section and back through the center section of said catheter toward the proximal end of said catheter, wherein a loop of said suture material remains beyond the distal end of said catheter subsequent to the deployment of said suture needle.

23. The medical probe device of claim 22 further including a second suture needle attached to the other end of said suture material, wherein the suture material and the second needle is removable from said catheter via said slot.

24. The medical probe device of claim 23 wherein said suture needle is deployed upon distal movement of said cam section within said catheter.

25. The medical probe device of claim 24 wherein said suture needle is deployed upon proximal movement of said cam section within said catheter.

26. A medical probe device for assisting in the joining together of two or more hollow body parts comprising:

a hollow catheter having a plurality of axial lumens running from the proximal end of said catheter to a position adjacent the distal end of said catheter, each of said lumens curving at the distal ends thereof to exit the catheter in an annular ring of apertures;

a sharpened suture in each of said lumens, said sharpened sutures comprising suture material with a distal end and a proximal end;

a deployment slider for each of said sutures and attached thereto and positioned at the proximal end of said catheter for selectively deploying each of said sharpened sutures out of said axial lumens via said apertures into surrounding tissue; and

a marker band distally forward of said annular ring of apertures for accurately positioning of said catheter within the hollow body part.

27. The medical probe device of claim 26 further including:

an annular elastic balloon positioned proximally rearwardly of said annular ring of apertures to stabilize said catheter within said hollow body part upon inflation of said balloon; and

a balloon inflation lumen in said catheter parallel to said plurality of axial lumens coupled to said balloon to provide a path for inflation material to said balloon.

28. The medical probe device of claim 27 further including:

a traction handle emanating from the distal end of said catheter to aid in inserting and positioning said catheter within said hollow body part.

29. The medical probe device of claim 28 further including:

a gripping handle at the proximal end of said catheter of a larger overall diameter of said catheter for firm grasping by an operator, said gripping handle comprising said deployment sliders in an annular arrangement about the exterior of said handle, each of said deployment sliders being mounted in an axial guide path for longitudinal movement therein to deploy or withdraw said sharpened sutures.

30. The medical probe device of claim 29 wherein said sharpened suture comprises a suture material having a sharp point thereon at the distal end thereof.

31. The medical probe device of claim 29 wherein said sharpened suture comprises a needle with a sharp end and a proximal end, and suture material attached to the proximal end of said needle.