Supportless atrioventricular heart valve and minimally invasive delivery systems thereof

• US 6,974,464 B2
• Filed: 05/02/2002
• Issued: 12/13/2005
• Est. Priority Date: 02/28/2002
• Status: Expired due to Fees

• Current Assignee: Medtronic 3F Therapeutics, Inc. (Medtronic Plc)
• Original Assignee: 3F Therapeutics Incorporated (Medtronic Plc)
• Inventors: Nguyen, Than, Tu, Hosheng, Quijano, Rodolfo C.
• Primary Examiner(s): THALER, MICHAEL H
• Application Number:
  US10/137,637
• Publication Number:
  US 20030163194A1
• Time in Patent Office: 1,321 Days
• Field of Search: 604/103.07, 604/176, 606/108, 606/194, 600/207, 600/115, 600/116
• US Class Current: 606/108
• 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 2/2415 Manufacturing methods
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses

Abstract

A supportless atrioventricular valve intended for attaching to a circumferential valve ring and papillary muscles of a patient comprising a singular flexible membrane of tissue or synthetic biomaterial, wherein a minimally invasive delivery system is provided through a percutaneous intercostal penetration and a penetration at the cardiac wall into a left atrium of the heart.

Claims

1. A delivery apparatus for accessing a left atrium of a patient through a cardiac wall, said delivery apparatus comprising a cup balloon located at a distal section of said delivery apparatus, wherein said cup balloon is configured with a plurality of internal passageways located between an inner wall and an outer wall of said cup balloon, said cup balloon being further configured with a securing mechanism capable of maintaining the cup balloon at a desired location relative to its surrounding environment during use, thereby defining an isolated enclosure bordered by said cup balloon and said cardiac wall wherein said securing mechanism comprises a plurality of suction ports located along a balloon rim of said cup balloon adapted for releasably securing said balloon rim onto said cardiac wall.

2. The delivery apparatus of claim 1, wherein a suction pressure of the plurality of suction ports is in the range of −

5 to −

100 mmHg.

3. The delivery apparatus of claim 1, wherein the cup balloon is made of a material selected from a group consisting of silicone, polyurethane, latex, and mixture thereof.

4. The delivery apparatus of claim 1, wherein a pressure for inflating said cup balloon is in the range of 10 to 100 mmHg.

5. The delivery apparatus of claim 1, wherein the delivery apparatus is made of a material selected from a group consisting of polyethylene, polypropylene, polycarbonate, nylon, polytetrafluoroethylene, polyurethane, stainless steel, Nitinol, titanium, polyimide, and polyester.