Epicardial anchor devices and methods

Patent metadata

Field	Value
Publication number	US-12274615-B2
Application number	US-202318156761-A
Country	US
Kind code	B2
Filing date	Jan 19, 2023
Priority date	Aug 1, 2013
Publication date	Apr 15, 2025
Grant date	Apr 15, 2025

Abstract

Apparatus and methods are described herein for anchoring a prosthetic heart valve. In some embodiments, an apparatus includes a tether attachment member that includes a base member that defines at least a portion of a tether passageway through which a portion of a tether extending from a prosthetic heart valve can be received therethrough. The base member defines a locking pin channel that intersects the tether passageway. A locking pin is disposable within the locking pin channel and movable between a first position in which the locking pin is at a spaced distance from the tether passageway, and a second position in which the locking pin intersects the tether passageway and can engage the portion of a tether disposed therein to secure the tether to the tether attachment member.

First claim

The invention claimed is:

1. A prosthetic heart valve system, comprising:
a prosthetic heart valve including a self-expanding frame, the self-expanding frame having an atrial end forming a cuff with a collar shape, and a tubular portion, the prosthetic heart valve further including a leaflet assembly positioned within the self-expanding frame;
a tether secured to the self-expanding frame at a ventricular end thereof, and
an anchor device having a base member and a hub, the hub having an outer perimeter received within a retaining channel of the base member so that the hub can rotate relative to the base member, the hub and the base member collectively defining a tether passageway being sized and shaped to receive the tether therethrough, the base member defining a locking pin channel that intersects with the tether passageway, the anchor device further including a locking pin assembly having a piercing portion received within the locking pin channel;
wherein when the tether is received through the tether passageway, the hub is rotatable relative to the base member between an unpinned condition and a pinned condition, the piercing portion of the locking pin assembly being disposed outside of the tether passageway and not piercing the tether in the unpinned condition, the piercing portion of the locking pin assembly extending through the tether passageway and piercing the tether in the pinned condition,
wherein when the piercing portion of the locking pin assembly is disposed outside of the tether passageway in the unpinned condition, no portion of the locking pin assembly extends through the tether passageway,
wherein rotating the hub relative to the base member between the unpinned condition and the pinned condition drives the locking pin through the tether passageway; and
wherein the locking pin assembly includes a driver portion, the driver portion being received within a curved cam channel of the hub.

2. The prosthetic heart valve system of claim 1 , wherein as the hub is rotated relative to the base member, the driver portion follows the curved cam channel causing linear motion of the piercing portion through the locking pin channel.

3. The prosthetic heart valve system of claim 2 , wherein the curved cam channel is asymmetrical.

4. The prosthetic heart valve system of claim 2 , wherein the curved cam channel has a spiral shape.

5. The prosthetic heart valve system of claim 1 , wherein the base member defines a detent configured to receive therein a protrusion on the hub to limit the rotation of the hub relative to the base member between the unpinned condition and the pinned condition.

6. The prosthetic heart valve system of claim 5 , wherein the protrusion is formed on an arm of the hub.

7. The prosthetic heart valve system of claim 6 , wherein the hub defines a slot adjacent to the arm, the slot enabling the arm to flex to allow the protrusion to be moved into and out of the detent.

8. The prosthetic heart valve system of claim 1 , wherein the base member includes cutout sections that are configured to engage coupling arms of a delivery device.

9. The prosthetic heart valve system of claim 8 , wherein the base member defines side openings within the cutout sections, the side openings being configured to receive coupling pins extending form the coupling arms of the delivery device.

10. The prosthetic heart valve system of claim 1 , wherein the leaflet assembly of the prosthetic heart valve includes valve leaflets formed of stabilized tissue.

11. The prosthetic heart valve system of claim 1 , wherein the leaflet assembly includes a leaflet support structure.

12. The prosthetic heart valve system of claim 11 , wherein the leaflet support structure is formed of wire.

13. The prosthetic heart valve system of claim 1 , wherein the prosthetic heart valve includes a tether attachment point disposed at the ventricular end of the self-expanding frame, the tether being secured to the self-expanding frame at the tether attachment point.

14. A prosthetic heart valve system, comprising:
a prosthetic heart valve including a self-expanding frame, the self-expanding frame having an atrial end forming a cuff with a collar shape, and a tubular portion, the prosthetic heart valve further including a leaflet assembly positioned within the self-expanding frame;
a tether secured to the self-expanding frame at a ventricular end thereof; and
an anchor device having a base member and a hub, the hub having an outer perimeter received within a retaining channel of the base member so that the hub can rotate relative to the base member, the hub and the base member collectively defining a tether passageway being sized and shaped to receive the tether therethrough, the base member defining a locking pin channel that intersects with the tether passageway, the anchor device further including a locking pin assembly having a piercing portion received within the locking pin channel;
wherein when the tether is received through the tether passageway, the hub is rotatable relative to the base member between an unpinned condition and a pinned condition, the piercing portion of the locking pin assembly being disposed outside of the tether passageway and not piercing the tether in the unpinned condition, the piercing portion of the locking pin assembly extending through the tether passageway and piercing the tether in the pinned condition,
wherein when the piercing portion of the locking pin assembly is disposed outside of the tether passageway in the unpinned condition, no portion of the locking pin assembly extends through the tether passageway,
wherein the anchor device includes a tube member coupled to the base member, the tube member defining a portion of the tether passageway.

15. The prosthetic heart valve system of claim 14 , wherein the anchor device includes a tube cover that covers the tube member.

16. The prosthetic heart valve system of claim 15 , wherein the tube cover is formed with a fabric material.

17. A prosthetic heart valve system, comprising:
a prosthetic heart valve including a self-expanding frame, the self-expanding frame having an atrial end forming a cuff with a collar shape, and a tubular portion, the prosthetic heart valve further including a leaflet assembly positioned within the self-expanding frame;
a tether secured to the self-expanding frame at a ventricular end thereof; and
an anchor device having a base member and a hub, the hub having an outer perimeter received within a retaining channel of the base member so that the hub can rotate relative to the base member, the hub and the base member collectively defining a tether passageway being sized and shaped to receive the tether therethrough, the base member defining a locking pin channel that intersects with the tether passageway, the anchor device further including a locking pin assembly having a piercing portion received within the locking pin channel;
wherein when the tether is received through the tether passageway, the hub is rotatable relative to the base member between an unpinned condition and a pinned condition, the piercing portion of the locking pin assembly being disposed outside of the tether passageway and not piercing the tether in the unpinned condition, the piercing portion of the locking pin assembly extending through the tether passageway and piercing the tether in the pinned condition,
wherein when the piercing portion of the locking pin assembly is disposed outside of the tether passageway in the unpinned condition, no portion of the locking pin assembly extends through the tether passageway,
wherein

Assignees

• Tendyne Holdings Inc

Inventors

• Vidlund Robert M
• Christianson Mark
• Ekvall Craig

Classifications

• A61F2230/0069

  cylindrical · CPC title

• A61F2220/0008

  Fixation appliances for connecting prostheses to the body · CPC title

• A61B2017/0414

  having a suture-receiving opening, e.g. lateral opening · CPC title

• A61B2017/0417

  T-fasteners · CPC title

• A61B2017/0464

  for soft tissue · CPC title