Blood vessel closure clip and delivery device

• US 20050234508A1
• Filed: 06/04/2003
• Published: 10/20/2005
• Est. Priority Date: 06/04/2002
• Status: Active Grant

• Current Assignee: Abbott Vascular Incorporated (Abbott Laboratories)
• Original Assignee: Abbott Vascular Incorporated (Abbott Laboratories)
• Inventors: Cummins, Christy, Stevenson, Robert
• Granted Patent: US 7,850,709 B2
• Time in Patent Office: Days
• US Class Current: 606/213
• 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 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/0644 penetrating the tissue, deformable to closed position
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/083 Clips, e.g. resilient
• CPC Class Codes: A61B 2017/00292 mounted on or guided by flexible, e.g. catheter-like, means
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/00637 for sealing trocar wounds through abdominal wall
• CPC Class Codes: A61B 2017/00668 the implement being a tack or a staple
• CPC Class Codes: A61B 2017/00867 shape memory effect
• CPC Class Codes: A61B 2017/0641 having at least three legs as part of one single body
• CPC Class Codes: A61B 2017/22061 for spreading elements apart

Abstract

A clip for closing a puncture hole in a blood vessel comprises a ring 12 having a resiliently expandable circumference and a plurality of barbed prongs 14 extending at least approximately in the same direction from one edge of the ring. A device for deploying such a clip is also described.

Claims

1-13. -13. (canceled)

14. A clip for closing a puncture hole in a blood vessel, the clip comprising a ring having a resiliently expandable circumference and a plurality of barbed prongs extending at least approximately in the same direction from one edge of the ring.

15. The clip of claim 14, wherein the prongs converge slightly towards the center of the ring.

16. The clip of claim 14, wherein the ring is sinuous.

17. The clip of claim 14, wherein the ring comprises a plurality of elongated segments each with a longitudinal center slit, the segments being disposed side by side around the ring with their longitudinal axes substantially parallel and being joined each to the next by a relatively narrow waist.

18. A device for closing a puncture hole in a blood vessel, comprising:

an elongated body having a front end for insertion through the hole into the blood vessel;

a clip expander positioned on the body rearwardly of the front end; and

a clip having a ring disposed around the expander and prongs projecting towards the front end of the body;

wherein the clip expander is actuable to resiliently expand the circumference of the ring, the clip being movable forwardly in its expanded state so that the prongs pierce the tissue around the hole, and the clip expander thereafter being actuable to release the clip so that the body and clip expander can be withdrawn from the ring.

19. The device of claim 18, wherein the clip expander comprises an inflatable enclosure surrounding the body, the enclosure being actuable to expand the ring by introducing fluid under pressure into the enclosure and being actuable to release the clip by venting the fluid.

20. The device of claim 19, wherein the fluid is introduced into the enclosure via a longitudinal bore in the body.

21. The device of claim 20, wherein when inflated the enclosure has a shoulder behind the ring, the shoulder enabling the clip to be pushed forwardly into the tissue around the hole by forward movement of the body.

22. The device of claim 18, wherein the clip expander comprises a sleeve surrounding the body which has one end fixed relative to the body, a section of the sleeve intermediate its ends being slit longitudinally to form a plurality of splines which can be forced mutually outwardly by sliding the other end of the sleeve along the body towards the fixed end of the sleeve, the clip being mounted on the splined section of the sleeve.

23. The device of claim 22, wherein the splines are hinged such that as the splines move mutually outwardly to expand the ring they also advance the clip towards the forward end of the body.

24. The device of claim 23, wherein after advancing the clip further movement of the said other end of the sleeve towards the fixed end moves the splines mutually inwardly to release the clip.

25. The device of claim 18, wherein the body has a longitudinal bore to slidably accommodate a guide wire pre positioned at the puncture hole.

26. The device of claim 18, wherein the body has a longitudinal bore to serve as a blood return channel.