Flexible anchor delivery system

Patent metadata

Field	Value
Publication number	US-8986327-B2
Application number	US-201213654855-A
Country	US
Kind code	B2
Filing date	Oct 18, 2012
Priority date	Oct 18, 2012
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

An assembly includes a flexible fixation member, a suture, and a delivery device. The flexible fixation member includes a body with two terminal ends. A suture passes through the flexible fixation member at various points along a length of the body such that portions of the fixation member are slidable relative to the suture and configurable to form a cluster within a surgical site. The delivery device includes a tubular member, an elongated inserter, and a trigger. The elongated inserter is slidably disposed within the tubular member. The inserter has a forked distal end configured to receive a portion of the flexible fixation member and the suture. The trigger is finger-engagable and fixedly coupled to the proximal end of the inserter. It is configured to advance and retract the inserter relative to the tubular member. The trigger includes a retention member for retaining a proximal end portion of the suture.

First claim

What is claimed is:

1. An assembly comprising:
a flexible fixation member comprising a body having two terminal ends;
a suture passing through the flexible fixation member at various points along a length of the body between the terminal ends such that portions of the fixation member are slidable relative to the suture and configurable to form a cluster within a surgical site; and
a delivery device comprising:
a tubular member;
an elongated inserter slidably disposed within the tubular member, the inserter comprising a forked distal end and a proximal end, the forked distal end configured to receive a portion of the flexible fixation member and the suture therein; and
a finger-engageable trigger fixedly coupled to the proximal end of the inserter and configured to advance and retract the inserter relative to the tubular member, the trigger comprising a retention member for retaining a proximal end portion of the suture.

2. The assembly of claim 1 , wherein the delivery device further comprises a handle to which the trigger is slidably coupled.

3. The assembly of claim 2 , wherein the delivery device further comprises a button coupled to the trigger and the handle and configured to permit the trigger to slide relative to the handle when the button is depressed.

4. The assembly of claim 3 , wherein the handle defines a plurality of cutout portions along a length of the handle, the cutout portions configured to receive a portion of the button therein to fixedly engage the trigger to the handle.

5. The assembly of claim 1 , wherein the trigger further comprises a circumferential groove defined about a periphery of the trigger.

6. The assembly of claim 1 , wherein the trigger comprises a substantially cylindrical body and a pair of finger-engageable elements extending laterally from the body.

7. The assembly of claim 1 , further comprising a cover disposed over the retention member.

8. The assembly of claim 2 , wherein the handle defines two openings in a distal end of the handle such that the suture passes from an interior to an exterior of the handle through the first of the two openings and the suture passes from the exterior to the interior of the handle through the second of the two openings.

9. The assembly of claim 2 , further comprising a cover element releasably coupled to a distal end of the handle and fixed coupled to a proximal end of the tubular member.

10. The assembly of claim 5 , wherein the trigger further defines a slot configured to receive a portion of the suture therethrough and direct the suture into the groove.

11. The assembly of claim 5 , wherein a length of the suture is wrapped about trigger at least once and is retained in the groove.

12. The assembly of claim 1 , wherein the suture passes through the fixation member to form two substantially parallel tail sections of suture.

13. The assembly of claim 1 , wherein the fixation member is non-tubular.

14. The apparatus of claim 1 , wherein the flexible fixation member and the suture comprise a size 2 suture.

15. A method of closing a tissue wound, comprising:
delivering a wound closure assembly to a surgical site, the wound closure assembly comprising:
a flexible fixation member comprising a body having two terminal ends;
a suture passing through the flexible fixation member at various points along a length of the body between the terminal ends such that portions of the fixation member are slidable relative to the suture and configurable to form a cluster within a surgical site; and
a delivery device comprising a tubular member, an elongated inserter slidably disposed within the tubular member, the inserter comprising a forked distal end, the forked distal end configured to receive a portion of the flexible fixation member and the suture therein, and a finger-engagable trigger fixedly coupled to the proximal end of the inserter and configured to advance and retract the inserter relative to the tubular member, the trigger comprising a retention member for retaining a proximal end portion of the suture;
advancing the inserter to position the flexible fixation member within a targeted tissue site;
tensioning the suture to form a cluster of the portions of the fixation member within the surgical site; and
retracting the inserter proximally relative to the tubular member to remove the forked distal end of the inserter from within the targeted tissue site.

16. The method of claim 15 , wherein tensioning the suture to form the cluster of the portions of the fixation member with the surgical site comprises pulling the fixation member against a distal end of the tubular member.

17. The method of claim 15 , wherein tensioning the suture is carried out by moving the trigger in a proximal direction relative to the tubular member.

18. The method of claim 15 , wherein retracting the inserter is carried out by moving the trigger in a proximal direction relative to the tubular member.

19. The method of claim 18 , wherein tensioning the suture and retracting the inserter are carried out by moving the trigger in a proximal direction relative to the tubular member such that the forked end of the inserter is moved proximally over a distance before tensioning of the suture begins.

20. The method of claim 15 , further comprising drilling a hole into the tissue.

Assignees

• Smith & Nephew Inc

Inventors

• Karasic Geoffrey I
• Mckenzie Brett A
• Astorino Steven William
• Lunn Richard M
• Koski Matthew Edwin
• Arai Tatsuya
• Housman Mark Edwin
• Gatturna Roland F

Classifications

• A61B17/0401 Primary

  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 title

• A61B2017/047

  having at least one proximally pointing needle located at the distal end of the instrument, e.g. for suturing trocar puncture wounds starting from inside the body · CPC title

• A61B2017/0496

  for tensioning sutures · CPC title

• A61B2017/0454

  the anchor being crimped or clamped on the suture · CPC title

• A61B17/1633

  Sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft (A61B17/1644 takes precedence) · CPC title