Anastomosis catheter

• US 20010049492A1
• Filed: 07/11/2001
• Published: 12/06/2001
• Est. Priority Date: 09/20/1999
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: EV3 Sunnyvale Incorporated (Medtronic Plc)
• Inventors: Burg, Erik J. Van Der, Lesh, Michael D., Roue, Chad C., Frazier, Andrew G.C.
• Granted Patent: US 6,702,825 B2
• Time in Patent Office: Days
• US Class Current: 604/104
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00292 mounted on or guided by flexible, e.g. catheter-like, means
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00579 Barbed implements
• CPC Class Codes: A61B 2017/00632 Occluding a cavity, i.e. closing a blind opening
• CPC Class Codes: A61B 2017/00668 the implement being a tack or a staple
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/042 plastically deformed during insertion
• CPC Class Codes: A61B 2017/0437 the barbs being resilient or spring-like
• CPC Class Codes: A61B 2017/0445 cannulated, e.g. with a longitudinal through-hole for passage of an instrument
• CPC Class Codes: A61B 2017/0454 the anchor being crimped or clamped on the suture
• CPC Class Codes: A61B 2017/0458 : Longitudinal through hole, e.g. suture blocked by a distal suture knot
• CPC Class Codes: A61B 2017/0464 : for soft tissue
• CPC Class Codes: A61B 2017/0472 : Multiple-needled, e.g. double-needled, instruments
• CPC Class Codes: A61B 2017/0477 : with pre-tied sutures
• CPC Class Codes: A61B 2017/048 : for reducing heart wall tension, e.g. sutures with a pad on each extremity
• CPC Class Codes: A61B 2017/0488 : Instruments for applying suture clamps, clips or locks
• CPC Class Codes: A61B 2017/0645 : being elastically deformed for insertion
• CPC Class Codes: A61B 2017/0647 : having one single leg, e.g. tacks
• CPC Class Codes: A61F 2/24 : Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
• CPC Class Codes: A61F 2/2427 : Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2487 : Devices within the heart chamber, e.g. splints
• CPC Class Codes: Y10S 606/907 : Composed of particular material or coated

Abstract

Disclosed is an anastomosis catheter, for achieving a tissue to tissue or synthetic graft to tissue attachment. The catheter includes a plurality of deployable tissue anchors, which may be laterally deployed into surrounding tissue. The anchors may be used to achieve end to end or end to side anastomoses. Methods are also disclosed.

Claims

1. An anastomosis catheter, comprising:

an elongate, flexible body, having a proximal end and a distal end;

at least one tissue anchor support on the body, movable between an axial orientation and an inclined orientation; and

an anchor movably carried by the anchor support;

wherein the anchor comprises a body having at least one proximal engagement surface for resisting distal travel of the body through tissue and a distal engagement surface for resisting proximal travel of the body through tissue.

2. An anastomosis catheter as in

claim 1

, wherein the tissue anchor support comprises a tube.

3. An anastomosis catheter as in

claim 1

, wherein the tissue anchor support comprises a proximal section, a distal section, and a hinge in between the proximal section and the distal section.

4. An anastomosis catheter as in

claim 3

, further comprising an actuator connected to the distal section, so that proximal retraction of the actuator with respect to the catheter body advances the anchor support from the axial position to the inclined position.

5. An anastomosis catheter as in

claim 1

, further comprising an introducer removably connected to the anchor for driving the anchor into the tissue.

6. An anastomosis catheter as in

claim 1

, comprising from about four anchor supports to about eight anchor supports.

7. An anastomosis catheter as in

claim 1

, wherein at least one anchor support comprises a tube.

8. An anastomosis catheter as in

claim 7

, further comprising a tissue anchor moveably positioned within the tube.

9. An anastomosis catheter as in

claim 3

, further comprising an actuator connected to the anchor support, so that distal advancement of the actuator advances the anchor support from the axial position to the inclined position.

10. An anastomosis catheter as in

claim 8

, comprising at least four tubes, each having a tissue anchor moveably positioned therein.

11. An anastomosis catheter as in

claim 1

, wherein the anchor support is biased toward the inclined orientation.

12. An anastomosis catheter as in

claim 1

, further comprising an axially moveable actuator.

13. An anastomosis catheter as in

claim 12

, wherein distal advancement of the actuator moves the anchor support from the axial position to the inclined position.

14. An anastomosis catheter as in

claim 12

, wherein the actuator comprises a core connected to the anchor support such that proximal retraction of the core advances the anchor support from the axial orientation to the inclined orientation.

15. An anastomosis catheter as in

claim 13

, further comprising an introducer removably connected to the anchor for driving the anchor into the tissue.

16. An anastomosis catheter as in

claim 15

, wherein the anchor comprises a tubular body and the introducer extends axially therethrough.