METHOD AND APPARATUS FOR TRANSAPICAL PROCEDURES ON A MITRAL VALVE

• US 20170258464A1
• Filed: 05/26/2017
• Published: 09/14/2017
• Est. Priority Date: 01/03/2014
• Status: Active Grant

• Current Assignee: Harpoon Medical, Inc. (Edwards Lifesciences Corporation), University of Maryland Baltimore County (University of Maryland)
• Original Assignee: Harpoon Medical, Inc. (Edwards Lifesciences Corporation), University of Maryland Baltimore County (University of Maryland)
• Inventors: GAMMIE, James, WILSON, Peter, BOYD, Peter, NILAND, William
• Granted Patent: US 10,639,024 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 17/0401 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 Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/0487 Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks suture anchors A61B17/0401; wound clamps or clips A61B17/08; ligaturing clamps or clips A61B17/122
• CPC Class Codes: A61B 2017/00783 Valvuloplasty
• CPC Class Codes: A61B 2017/0406 Pledgets
• CPC Class Codes: A61B 2017/0458 Longitudinal through hole, e.g. suture blocked by a distal suture knot
• CPC Class Codes: A61B 2017/0474 Knot pushers
• CPC Class Codes: A61B 2017/0488 Instruments for applying suture clamps, clips or locks
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself

Abstract

Apparatus and methods for performing a non-invasive procedure to repair a cardiac valve are described herein. In some embodiments, apparatus and methods are described herein for repairing a mitral valve using an edge-to-edge repair to secure the mitral valve leaflets. Implant securing devices are also described that can be used during a procedure to repair a mitral valve. In some embodiments, an implant securing device includes an outer member and an inner member movably disposed within the outer member. The inner member can be used to hold or secure a suture extending from an implant deployed on an atrial side of a leaflet of a mitral valve, and the outer member can be used to push or move a half hitch knot toward a ventricular side of the leaflet, which can be used to secure the implant in the desired position.

Claims

1. An apparatus, comprising:

an outer member having a proximal end, a distal end, and a lumen; and

an inner member disposed at least partially within the lumen of the outer member, the inner member having a proximal end, a distal end, and defining a lumen configured to receive therethrough a first suture portion extending proximally from a first implant deployed on an atrial side of a first leaflet of a mitral valve and a second suture portion extending proximally from a second implant deployed on the atrial side of a second leaflet of the mitral valve,

the outer member configured to push distally a knot formed outside of the outer member with a third suture portion extending proximally from the first implant and a fourth suture portion extending proximally from the second implant.

2. The apparatus of claim 1, wherein the outer member defines a distal opening and an opening in a side wall each of which is in communication with the lumen of the outer member, and through which each one of the third suture portion and the fourth suture portion can be received.

3. The apparatus of claim 1, wherein the inner member includes a stop member disposed on an outer wall of the inner member and configured to limit distal movement of the outer member relative to the inner member.

4. The apparatus of claim 1, wherein the first implant is formed integrally with the first suture portion and the third suture portion, the second implant is formed integrally with the second suture portion and the fourth suture portion.

5. The apparatus of claim 1, wherein the first implant includes a suture including a first loop on the atrial side of the first leaflet, the first suture portion extending from the first loop and the third suture portion extending from the first loop, the second implant includes a suture including a second loop on the atrial side of the second leaflet, the second suture portion extending from the second loop and the fourth suture portion extending from the second loop.

6. The apparatus of claim 1, wherein the outer member and the inner member are movable relative to each other between a first position in which a distal end of the outer member is disposed in a first position at a first distance from a distal end of the inner member and the one of the third suture portion and the fourth suture portion are insertable through the distal opening of the outer member and through the side opening of the outer member, and a second position in which the distal end of the outer member is disposed at a second distance from the distal end of the inner member, the second distance being less than the first distance.

7. The apparatus of claim 1, wherein the inner member includes a clamp member configured to hold the first suture portion and the third suture portion when disposed within the lumen of the inner member.