Cinch and post for tricuspid valve repair

• US 10,420,565 B2
• Filed: 11/29/2016
• Issued: 09/24/2019
• Est. Priority Date: 11/29/2016
• Status: Active Grant

• Current Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories)
• Original Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories)
• Inventors: Garcia, Antonio N., Kalvass, Laura M., McNiven, Sean A., Lee, Benjamin L.
• Primary Examiner(s): Louis, Richard G
• Application Number:
  US15/364,169
• Publication Number:
  US 20180146964A1
• Time in Patent Office: 1,029 Days
• 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 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• CPC Class Codes: A61B 17/08 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 Class Codes: A61B 17/083 Clips, e.g. resilient
• CPC Class Codes: A61B 17/10 for applying or removing wound clamps, e.g. containing only one clamp or staple A61B17/076 takes precedence; containing multiple wound clamps A61B17/068; Wound clamp magazines containers, packaging elements or packages specially adapted for particular articles or with special means for dispensing contents B65D83/00, B65D85/00
• CPC Class Codes: A61B 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 17/1227 Spring clips
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• 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 2017/00783 Valvuloplasty
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0052 T-shaped
• CPC Class Codes: A61F 2230/0093 Umbrella-shaped, e.g. mushroom-shaped
• CPC Class Codes: A61F 2250/001 for adjusting a diameter

Abstract

A system for repairing a tricuspid valve in a patient'"'"'s heart comprising a post having a distal end and a proximal end, a capture element attached to the distal end of the post, the capture element including: a plurality of arms each having a first end and a second end, each arm attached at the first end to the post and extending both radially outwardly from the post and proximally, each arm defining an opening at the second end; a wire passing sequentially through the opening on each arm, whereby tensioning the wire draws the second end of each arm towards the post.

Claims

1. A system for repairing a tricuspid valve in a patient'"'"'s heart comprising:

a post having a distal end and a proximal end;

a capture element attached to the distal end of the post, the capture element including;

a plurality of arms each having a first end and a second end, each arm attached at the first end to the post and extending both radially outwardly from the post and proximally, each arm defining an opening at the second end;

a wire passing sequentially through the opening on each arm, whereby tensioning the wire draws the second end of each arm towards the post; and

wherein the post defines a central bore having an orifice at the distal end of the post, and the wire passes into the bore through the orifice.

2. The system of claim 1, wherein the post at the proximal end is removably attached to a delivery catheter by an attachment means.

3. The system of claim 1, wherein the wire is attached to a zip tie by a frangible connection.

4. The system of claim 1, wherein the capture element is foldable about the post and both the post and the capture element are inserted inside an inner bore of a delivery catheter.

5. The system of claim 1, wherein the capture element further includes a hoop having a continuous circumference sized to receive the distal end of the post.

6. The system of claim 5, wherein the arms and the hoop of the capture element are formed from a single sheet of metal.

7. The system of claim 6, wherein the single sheet of metal is a Nickel Titanium alloy.

8. The system of claim 5, further including an annular plug inserted between the post and the hoop.

9. The system of claim 8, wherein the plug between the post and the hoop is formed by enlargement through applying a compression force across an axial dimension so as to expand a radial dimension of the plug.

10. A method of repairing a tricuspid valve having a first leaflet, a second leaflet, and a third leaflet in a heart of a patient, the method comprising:

passing an elongate post between the first leaflet, the second leaflet, and the third leaflet;

opening a wire into a circular shape that surrounds the post, thereby providing a space between the wire and the post;

manipulating the post and the wire until a tip of the first leaflet, a tip of the second leaflet, and a tip of the third leaflet are positioned within the space between the wire and the post;

applying a tension force to the wire, thereby reducing a circumference of the circular shape and thereby capturing simultaneously the tip of the first leaflet, the tip of the second leaflet, and the tip of the third leaflet between the post and the wire; and

further including locking the wire into a fixed final circumference.

11. The method of claim 10, wherein locking the wire includes using a zip tie.

12. The method of claim 11, wherein using a zip tie includes breaking a frangible connector that attaches the wire to the zip tie.

13. The method of claim 10, wherein opening a wire into a circular shape includes releasing from confinement arms attached to the elongate post, wherein the arms carry the wire and are shaped to expand radially outwardly.

14. The method of claim 13, wherein releasing from confinement includes withdrawing a sheath away from covering the arms.

15. The method of claim 10, further including removing a delivery catheter from the heart of the patient, while leaving the post and the wire in the heart.

16. The method of claim 15, wherein removing a delivery catheter from the heart of the patient includes disconnecting the post from the delivery catheter by withdrawing a sheath away from covering a portion of the post.