METHODS, SYSTEMS AND DEVICES FOR CARDIAC VALVE REPAIR

• US 20160242909A1
• Filed: 03/28/2016
• Published: 08/25/2016
• Est. Priority Date: 02/07/2005
• Status: Abandoned Application

• Current Assignee: Evalve, Inc. (Abbott Laboratories)
• Original Assignee: Evalve, Inc. (Abbott Laboratories)
• Inventors: KETAI, Ted, BENDER, Chris, TYLER, Steven A., THORNTON, Troy L., GOLDFARB, Eric A.
• Application Number:
  US15/082,137
• Publication Number:
  US 20160242909A1
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 17/0401 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 17/0487 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 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00783 Valvuloplasty
• CPC Class Codes: A61B 2017/00876 magnetic
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/0427 having anchoring barbs or pins extending outwardly from the anchor body
• CPC Class Codes: A61B 2017/0435 the barbs being separate elements mechanically linked to the anchor, e.g. by pivots
• CPC Class Codes: A61B 2017/0445 cannulated, e.g. with a longitudinal through-hole for passage of an instrument
• CPC Class Codes: A61B 2017/0454 the anchor being crimped or clamped on the suture
• CPC Class Codes: A61B 2017/0464 for soft tissue
• CPC Class Codes: A61B 2017/0496 for tensioning sutures
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/2457 : 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 2/2463 : Implants forming part of the valve leaflets
• CPC Class Codes: A61F 2/2478 : Passive devices for improving the function of the heart muscle, i.e. devices for reshaping the external surface of the heart, e.g. bags, strips or bands
• CPC Class Codes: A61F 2/2487 : Devices within the heart chamber, e.g. splints
• CPC Class Codes: A61F 2210/009 : magnetic
• CPC Class Codes: A61F 2220/0016 : with sharp anchoring protrusions, e.g. barbs, pins, spikes

Abstract

Disclosed are methods, systems, and devices for the endovascular repair of cardiac valves, particularly the atrioventricular valves which inhibit back flow of blood from a heart ventricle during contraction. The procedures described herein can be performed with interventional tools, guides and supporting catheters and other equipment introduced to the heart chambers from the patient'"'"'s arterial or venous vasculature remote from the heart. The interventional tools and other equipment may be introduced percutaneously or may be introduced via a surgical cut down, and then advanced from the remote access site through the vasculature until they reach the heart.

Claims

1. A chordal replacement device comprising:

a proximal anchor comprising;

a flexible patch; and

a leaflet attachment device,

wherein the flexible patch is affixed to an upper surface of a portion of a flailing leaflet with the leaflet attachment device;

a distal anchor extending in a ventricle; and

a flexible tether coupled to and tensioned between the proximal and distal anchors.

2. The device of claim 1, wherein the proximal anchor further comprises a mesh stent deployable within an atrium.

3. The device of claim 2, wherein the mesh stent is coupled to a flexible rod that extends through a valve commissure into the ventricle.

4. The device of claim 3, wherein a distal end of the flexible rod couples to the distal anchor and provides consistent tension on the tether during a heart cycle.

5. The device of claim 3, wherein the flexible rod has a deflectable, spring-formed shape.

6. The device of claim 3, wherein the flexible rod is jointed.

7. The device of claim 1, wherein the distal anchor comprises a balloon and wherein infusion of fluid into the balloon increases tension on the tether.