Long arm valve repair clip

Patent metadata

Field	Value
Publication number	US-2018325671-A1
Application number	US-201815977995-A
Country	US
Kind code	A1
Filing date	May 11, 2018
Priority date	May 12, 2017
Publication date	Nov 15, 2018
Grant date	—

Abstract

Fixation device for engaging tissue including a pair of fixation elements, each fixation element has a first end and a second end opposite the first end, the first ends are moveable between a closed position and an open position. The fixation device further includes a pair of gripping elements. Each gripping element is moveable with a respective fixation element and disposed in opposition to at least a portion of the respective fixation element to capture tissue therebetween. The fixation device further includes a central portion operatively connected to each gripping element at a respective central portion-gripping element interface. The central portion has at least one distal end and a width “W 1 ” proximate the distal end. Each of the gripping elements has a free end opposite its respective central portion-gripping element interface and a length “L 1 ” defined between the respective central portion-gripping element interface and the free end. The length L 1 fixation elements is at least about three times the width W 1 .

First claim

1 . A fixation device for engaging tissue comprising:
a pair of fixation elements, each fixation element having a first end and a second end opposite the first end, the first ends being moveable between a closed position and an open position; a pair of gripping elements, each gripping element moveable with respect to a respective fixation element and disposed in opposition to at least a portion of the respective fixation element to capture tissue therebetween; and a central portion operatively connected to each gripping element at a respective central portion-gripping element interface, the central portion having a distal end, the central portion having a width “W 1 ” proximate the distal end,
each gripping element having a free end opposite its respective central portion-gripping element interface and a length “L 1 ” defined between the respective central portion-gripping element interface and the free end, wherein the length L 1 is at least about three times the width W 1 .

2 . The fixation device of claim 1 , wherein the ratio of the width to the length W 1 :L 1 is about 1:3.

3 . The fixation device of claim 1 , wherein the distal end defines a reference plane perpendicular to a central axis of the central portion and wherein a height “H 1 ” is defined by a vertical dimension between the reference plane and the central portion-gripping element interfaces.

4 . The fixation device of claim 3 , wherein the ratio of the height to the length H 1 :L 1 is about 1:1.8.

5 . The fixation device of claim 1 , wherein the length L 1 is about 0.35 inches.

6 . The fixation device of claim 1 , the central portion having a generally U-shaped configuration with the distal end disposed between the respective central portion-gripping element interfaces.

7 . The fixation device of claim 1 , wherein each fixation element is rotatable about a respective axis point, each fixation element having an elongate portion defining a respective reference axis, wherein a length “L 2 ” is defined along the respective reference axis between the respective axis point and the respective second end of each fixation element.

8 . The fixation device of claim 7 , wherein the length L 2 is at least the length of L 1 .

9 . The fixation device of claim 8 , wherein the ratio of the lengths L 2 :L 1 is about 1.35:1.

10 . The fixation device of claim 1 , each gripping element has at least four rows of friction elements extending from a gripping element surface.

11 . The fixation device of claim 10 , wherein each row includes at least one friction element.

12 . A fixation device for engaging tissue comprising:
a pair of fixation elements, each fixation element having a first end and a second end opposite the first end, the first ends being moveable between a closed position and an open position; a pair of gripping elements, each gripping element moveable with respect to a respective fixation element and disposed in opposition to at least a portion of the respective fixation element to capture tissue therebetween; and a central portion operatively connected to each gripping element at a respective central portion-gripping element interface, the central portion having a distal end defining a reference plane perpendicular to a central axis of the central portion,
each gripping element having a free end opposite its respective central portion-gripping element interface and a length “L 1 ” defined between the respective central portion-gripping element interface and the free end, wherein a height “H 1 ” is defined by a vertical dimension between the reference plane and the central portion-gripping element interfaces, and the length L 1 is at least 1.8 times the height H 1 .

13 . The fixation device of claim 12 , wherein the ratio of the height to the length H 1 :L 1 is about 1:1.8.

14 . The fixation device of claim 12 , wherein the ratio of the width to the length W 1 :L 1 is about 1:3.

15 . The fixation device of claim 12 , wherein the length L 1 is about 0.35 inches.

16 . The fixation device of claim 12 , the central portion having a generally U-shaped configuration with the distal end disposed between the respective central portion-gripping element interfaces.

17 . The fixation device of claim 12 , wherein each fixation element is rotatable about a respective axis point, each fixation element having an elongate portion defining a respective reference axis, wherein a length “L 2 ” is defined along the respective reference axis between the respective axis point and the respective second end of each fixation element.

18 . The fixation device of claim 17 , wherein the length L 2 is at least the length of L 1 .

19 . The fixation device of claim 18 , wherein the ratio of the lengths L 2 :L 1 is about 1.35:1.

20 . The fixation device of claim 12 , each gripping element has at least four rows of friction elements extending from a gripping element surface.

21 . The fixation device of claim 20 , wherein each row includes at least one friction element.

Assignees

• Evalve Inc

Inventors

• Abunassar Chad
• Garcia Jessie
• Mahmoud Tamer
• Chu Brandon
• Prabhu Santosh

Classifications

• A61F2/246

  Devices for obstructing a leak through a native valve in a closed condition · CPC title

• A61B17/1285

  for minimally invasive surgery · CPC title

• A61F2220/0016

  with sharp anchoring protrusions, e.g. barbs, pins, spikes · CPC title

• A61F2/2466 Primary

  Delivery devices therefor · CPC title

• A61B17/08

  Wound clamps {or clips, i.e. not or only partly penetrating the tissue (suture bridges A61B17/0466); Devices for bringing together the edges of a wound} · CPC title