Mitral shield

• US 7,070,618 B2
• Filed: 10/25/2001
• Issued: 07/04/2006
• Est. Priority Date: 10/25/2000
• Status: Expired due to Term

• Current Assignee: Ancora Heart, Inc.
• Original Assignee: Viacor, Inc.
• Inventors: Streeter, Richard B.
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): Blanco, Javier G.
• Application Number:
  US10/004,068
• Publication Number:
  US 20020065554A1
• Time in Patent Office: 1,713 Days
• Field of Search: 623 211- 213, 623/2.1, 623/2.2, 623 227- 233, 623 236- 241
• US Class Current: 623/2.36
• 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

Abstract

A valve shield comprising a shaped sheet of material adapted to be affixed to the annulus of a valve and adapted to extend over at least a portion of at least one leaflet of the valve so as to assist or replace the closing function of that valve leaflet.

Claims

1. A valve shield comprising a substantially flat shaped sheet of material structured for affixing to an annulus of a cardiac valve having first and second leaflets, said shaped sheet of material being of substantially uniform thickness and sized to have a surface area and a surface configuration substantially matching a substantially total surface area and a substantially total surface configuration of the first leaflet of the valve, and shaped complimentarily to the second leaflet so as to be substantially wholly contactable by an edge portion of the second leaflet of the valve, whereby to facilitate interengagement of the second leaflet edge portion and an edge portion of the sheet of material to effect closing of the valve.

2. A valve shield according to claim 1 wherein the shaped sheet of material when affixed to the cardiac valve annulus prevents prolapse of the first leaflet.

3. A valve shield according to claim 2 wherein a total surface configuration of the shaped sheet of material is substantially crescent shaped.

4. A valve shield according to claim 2 wherein a total surface area of the shaped sheet of material includes at least one opening therein.

5. A valve shield according to claim 2 wherein a total surface area of the shaped sheet of material is substantially solid.

6. A valve shield according to claim 2 wherein the shaped sheet of material is of a structure capable of being affixed to the annulus of the valve with sutures.

7. A valve shield according to claim 2 wherein the shaped sheet of material comprises non-biological material.

9. A valve shield according to claim 1 wherein said shaped sheet of material is provided with an outer periphery at least in part shaped complimentarily to at least a portion of the annulus of the valve.

8. A method for reducing regurgitation in a cardiac valve having first and second leaflets and an annulus, the method comprising:

providing a valve shield comprising a shaped sheet of material having a surface area and surface configuration substantially matching the entirety of the surface area and surface configuration of the first leaflet of the valve, and the shaped sheet of material having an edge configuration complementary to an edge configuration of the second leaflet of the valve; and

affixing the valve shield to the annulus of the valve so that the shield substantially overlies the entirety of the first leaflet of the valve, to facilitate closing of the valve by edge to edge contact between the edge of the shaped sheet of material and the edge of the second leaflet.