Method for helping improve operation of a heart valve

• US 7,374,572 B2
• Filed: 05/07/2001
• Issued: 05/20/2008
• Est. Priority Date: 05/22/2000
• Status: Expired due to Fees

• Current Assignee: Shlomo Gabbay
• Original Assignee: Shlomo Gabbay
• Inventors: Gabbay, Shlomo
• Primary Examiner(s): McDermott; Corrine
• Assistant Examiner(s): Izquierdo; David A.
• Application Number:
  US10/204,316
• Publication Number:
  US 20030033009A1
• Time in Patent Office: 2,570 Days
• Field of Search: 623 211- 239
• 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 method for helping improve operation of a heart valve includes implanting an apparatus at an annulus of a heart valve, such that one or more leaflets of the patient'"'"'s heart valve the can move into and out of engagement with a portion of the implanted apparatus and thereby help control blood flow relative to the apparatus and heart valve.

Claims

1. A method for helping improve operation of a patient'"'"'s heart valve, comprising:

providing an apparatus comprising a generally arcuate base and a buttress extending generally axially from relative to at least a portion of the base, the buttress being dimensioned and configured to simulate the dimensions and configuration of a leaflet at systole; and

implanting the apparatus at the patient'"'"'s heart valve, such that at least one leaflet of the patient'"'"'s heart valve generally opposes the buttress, is moveable relative to the buttress, the at least one leaflet of the patient'"'"'s heart valve moving into engagement with the buttress to prevent flow of blood through the valve and out of engagement with the buttress to permit flow of blood therethrough.

2. The method of claim 1, further comprising removing a defective part of the patient'"'"'s heart valve prior to the implanting.

3. The method of claim 2, the implanting further comprising implanting the base at an annulus of the patient'"'"'s heart valve, such that the buttress is generally diametrically opposed relative to the at least one leaflet.

4. The method of claim 3, further comprising suturing an implantation flange, which extends from the base, to the annulus.

5. A method for helping improve operation of a patient'"'"'s heart valve, comprising:

attaching an apparatus at an annulus of the patient'"'"'s heart valve to support the annulus for permitting blood flow through the apparatus and annulus, the apparatus including a surface that is dimensioned and configured to simulate the dimensions and configuration of a radially inward surface of a heart valve leaflet in a closed position, the surface of the apparatus being positioned in an opposing relationship relative to at least one opposing leaflet of the patient'"'"'s heart valve; and

when the apparatus is attached at the annulus of the patient'"'"'s heart valve, the at least one opposing leaflet of the patient'"'"'s heart valve moving into and out of engagement with the surface of the apparatus to provide for substantially unidirectional blood flow relative to the apparatus and the patient'"'"'s heart valve.

6. The method of claim 5, further comprising excising a defective leaflet of the heart valve.

7. The method of claim 6, the excising occurring before the attaching.

8. The method of claim 5, further comprising attaching an arcuate base of the apparatus at the annulus so that a buttress extends generally towards the at least one leaflet.

9. The method of claim 5, further comprising suturing a flange, which extends from the base, to the annulus of the heart valve.

10. A method for helping improve operation of a patient'"'"'s heart valve, comprising:

providing an apparatus comprising a generally arcuate base and a buttress extending generally axially from at least a portion of the base, the buttress having a radially inward surface that is dimensioned and configured to simulate the dimensions and configuration of a leaflet in a closed position;

implanting the apparatus at the patient'"'"'s heart valve so that the radially inward surface of the buttress is oriented in an opposing relationship relative to at least one opposing leaflet of the patient'"'"'s heart valve; and

wherein after the apparatus has been implanted, the at least one opposing leaflet of the patient'"'"'s heart valve moving into engagement with the radially inward surface of the buttress to prevent backflow of blood therethrough and moving out of engagement with the radially inward surface of the buttress to provide for substantially free flow of blood therethrough.

11. The method of claim 10, further comprising excising at least one leaflet of the patient'"'"'s heart valve, which is not the at least one opposing leaflet of the patient'"'"'s heart valve, the surface of the buttress being positioned to replace the function of the excised at least one leaflet of the patient'"'"'s heart valve.

12. The method of claim 10, further comprising suturing a flange, which extends outwardly from the base, to the annulus of the patient'"'"'s heart valve.