Stentless atrioventricular heart valve fabricated from a singular flat membrane

• US 6,830,586 B2
• Filed: 02/28/2002
• Issued: 12/14/2004
• 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): Snow, Bruce
• Assistant Examiner(s): MILLER, CHERYL L
• Application Number:
  US10/086,100
• Publication Number:
  US 20030163195A1
• Time in Patent Office: 1,020 Days
• Field of Search: 623/2.1, 623/2.11, 623/2.12, 623/2.13, 623/2.17, 623/2.36, 623/2.38, 623/2.39, 623/2.4, 623/2.41
• US Class Current: 623/2.13
• 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 stentless 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, the valve having a sewing ring, an anterior cusp and a posterior cusp, wherein the anterior cusp and said posterior cusp are an integral part of a continuum from the singular membrane without sutured commissure between remote ends of the cusps and wherein texture elements secured at edge portions of the cusps configured to extend the texture elements for connection to papillary muscles in a ventricle cavity when the sewing ring is sutured to an atrioventricular junction of a patient'"'"'s heart.

Claims

1. A stentless atrioventricular valve comprising a singular membrane of tissue, said valve having a sewing ring comprising an opening defined by a perimeter including at least a first and a second straight side portions thereof, an anterior cusp hinged continuously from said first straight side portion, a posterior cusp hinged continuously from said second straight side portion opposite said anterior cusp, wherein said anterior cusp and said posterior cusp are an integral part of a continuum from said singular membrane configured to form a substantially tubular shape for use as the atrioventricular valve, wherein the sewing ring is wrapped within the singular membrane of tissue for valve fabrication and wherein the anterior cusp and the posterior cusp further comprise texture elements at edge portions of the cusps configured to extend said texture elements for connection to papillary muscles in a ventricle cavity when the sewing ring is sutured to an atrioventricular junction of a patient heart.

2. The stentless atrioventricular valve of claim 1, wherein the texture elements are made of polyester or polytetrafluoroethylene fabric.

3. The stentless atrioventricular valve of claim 1, wherein the texture elements are formed integral with the cusps and are provided with integral attachment portions at ends remote from the cusps for suturing to the papillary muscles.