Stapling apparatus and method for heart valve replacement

• US 6,096,074 A
• Filed: 01/27/1998
• Issued: 08/01/2000
• Est. Priority Date: 01/27/1998
• Status: Expired due to Term

• Current Assignee: United States Surgical Corporation (Medtronic Plc)
• Original Assignee: United States Surgical Corporation (Medtronic Plc)
• Inventors: Pedros, Roberto
• Primary Examiner(s): Willse, David H.
• Application Number:
  US09/013,836
• Time in Patent Office: 917 Days
• Field of Search: 623/2, 623/900
• US Class Current: 623/2.1
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: Y10S 623/904 Heart

Abstract

There are disclosed various systems and methods for installing a synthetic, artificial heart valve within a patient. One system generally includes a plurality of sutures, each suture having a staple attached to a distal end thereof; a surgical stapler for radially discharging the staples into a heart at a location adjacent a site for installing the heart valve; a support assembly for releasably supporting the plurality of sutures; and a heart valve setter assembly, the heart valve setter assembly being operable to move the heart valve into position within the site in the heart. A method of installing a heart valve within a patient utilizing the system is provided and generally includes the steps of accessing a site within a heart from which a natural heart valve has been removed; positioning a surgical stapler within the site; discharging a plurality of staples, having sutures attached thereto, from the surgical stapler into the heart; lowering the heart valve along the sutures into position within the site in the heart; and securing the heart valve to the heart with the sutures.

Claims

1. A system for installing a heart valve within a patient comprising:

a plurality of sutures, each suture having a staple attached to a distal end thereof;

a surgical stapler for discharging the staples into a heart at a location adjacent a site for installing the heart valve;

a support assembly for releasably supporting the plurality of sutures; and

a heart valve setter assembly, the heart valve setter assembly being operable to engage the plurality of sutures with the heart valve and move the heart valve into position within the site in the heart.

2. The system of claim 1, further comprising a plurality of needles attached to proximal ends of the plurality of sutures.

3. The system of claim 1, wherein the surgical stapler discharges at least one staple in a radial direction to engage the heart at a predetermined location.

4. The system of claim 1, wherein the heart valve is moved along the sutures into position within the site in the heart.

5. The system of claim 2, wherein the support assembly includes a plurality of legs and a ring member, the ring member configured to interconnect the plurality of legs at a proximal end thereof.

6. The system of claim 5, wherein the ring member includes a plurality of grooves on an inner surface thereof for releasably securing the plurality of needles.

7. The system of claim 6, wherein the support assembly further includes a ring shaped needle guard mounted on the ring member.

8. The system of claim 1, wherein the heart valve setter assembly comprises a heart valve holder assembly and a heart valve setting instrument.

9. The system of claim 8, wherein the heart valve holder assembly includes a shaft, a handle connected to a proximal end of the shaft, and a heart valve holder connected to a distal end of the shaft.

10. The system of claim 8, wherein the heart valve setting instrument includes a shaft having a knurled proximal portion and a needle grasper connected to a distal end of the shaft.

11. The system of claim 8, wherein the heart valve setting instrument is slidably mounted on the heart valve holder assembly.

12. A system for installing a heart valve within a heart comprising:

a plurality of sutures;

means for attaching a distal end of the plurality of sutures to the heart at a location adjacent a site for installing the heart valve;

a support assembly for releasably supporting the plurality of sutures;

a heart valve setter assembly, the heart valve setter assembly being operable to engage the plurality of sutures with the heart valve and move the heart valve into position within the site in the heart; and

a plurality of needles attached to proximal ends of the plurality of sutures;

wherein the support assembly includes a plurality of legs, a ring member and a ring shaped needle guard mounted on the ring member, the ring member including a plurality of grooves on an inner surface thereof for releasably securing plurality of needles and configured to interconnect the plurality of legs at a proximal end thereof.

13. The system of claim 12, wherein the heart valve is moved along the sutures into position within the site in the heart.

14. The system of claim 12, wherein the heart valve setter assembly comprises a heart valve holder assembly and a heart valve setting instrument.

15. The system of claim 14, wherein the heart valve holder assembly includes a shaft, a handle connected to a proximal end of the shaft, and a heart valve holder connected to a distal end of the shaft.

16. The system of claim 14, wherein the heart valve setting instrument includes a shaft having a knurled proximal portion and a needle grasper connected to a distal end of the shaft.

17. The system of claim 14, wherein the heart valve setting instrument is slidably mounted on the heart valve holder assembly.