Integrated heart valve rotator and holder

• US 5,480,425 A
• Filed: 06/09/1994
• Issued: 01/02/1996
• Est. Priority Date: 06/09/1994
• Status: Expired due to Fees

• Current Assignee: Carbomedics Inc. (Snia SpA)
• Original Assignee: Carbomedics Inc. (Snia SpA)
• Inventors: Ogilive, William F.
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): SNOW, BRUCE EDWARD
• Application Number:
  US08/257,681
• Time in Patent Office: 572 Days
• Field of Search: 623/2, 623/3, 606/1, 606/99, 606/108
• US Class Current: 623/2.11
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation

Abstract

An integrated heart valve rotator and holder comprising a central rotator which is used, first, to protect and stabilize the leaflets of the heart valve during implantation and, second, to rotate the heart valve into a desired position after the sewing ring has been attached. A heart valve holder mounts on the rotator and is secured to the heart valve suture ring by a thread or suture. After the heart valve is stitched into the proper location in the heart, the attending physician cuts the suture at a single location and withdraws the heart valve holder, rotator and suture as a single component. The heart valve holder, carrying both parts of the severed suture, is removed from the rotator. The rotator can then be returned to the heart valve to adjust the orientation of the annular valve body within the suture ring.

Claims

1. An apparatus for supporting a mechanical heart valve during implantation of the heart valve in a patient, the heart valve having an annular valve body, at least one leaflet within said annular valve body and adapted to pivot between open and closed positions, and a sewing ring circumferentially surrounding said annular valve body, the apparatus comprising

a heart valve rotator having

at least one leaflet guard adapted to extend within said annular valve body adjacent said leaflet, and

a post connected to said guard and extending away from said valve body,

a sewing ring holder connected to said heart valve rotator and extending adjacent said sewing ring at at least two distinct points on said ring, said holder having

at least one arm extending between said sewing ring and said post, and

means releasably connecting said holder to said post

a single suture having

a first end secured to said holder,

a middle part releasably attached to said sewing ring at each of said distinct points, and

a second end secured to said holder, said single suture holding said sewing ring holder and said heart valve rotator in contact with said heart valve and being reseasable from said heart valve by severing said suture at a single point into a first and second portion, said first portion including said first end and said second portion including said second end, whereby said first and second portions remain secured to said holder.

2. The apparatus according to claim 1 wherein said holder further comprises a first arm and a second arm, said first and second arms extending generally linearly along a diameter of said heart valve.

3. The apparatus according to claim 2 wherein said first end of said suture is secured to said first arm and said second end of said suture is secured to said second arm.

4. The apparatus according to claim 3 wherein said suture is stitched into said sewing ring adjacent said first arm, is passed along said first arm to said second arm, and is stitched into said sewing ring adjacent said second arm.

5. The apparatus according to claim 4 wherein said holder further comprises a groove extending along said first arm and along said second arm and wherein said suture passes along said groove from said suture ring adjacent said first arm to said suture ring adjacent said second arm.

6. An apparatus for supporting a mechanical heart valve during implantation of the heart valve in a patient, the heart valve having an annular valve body, at least one leaflet within said annular valve body and adapted to pivot between open and closed positions, and a sewing ring circumferentially surrounding said annular valve body, the apparatus comprising

a heart valve rotator having

at least one leaflet guard adapted to extend within said annular valve body adjacent said leaflet,

a saddle connected to said leaflet guard adjacent said annular valve body at a first side thereof, extended diametrically across said valve body and connected to said leaflet guard adjacent said annular valve body at a second side thereof, and

a post connected to said saddle and extending away from said valve body, said post being connected to said saddle between said first and second sides,

a sewing ring holder connected to said rotator and extending adjacent said sewing ring and having at least a first arm and a second arm, said first and second arms extending generally linearly along a diameter of said heart valve between said sewing ring and said post and releasably connecting said holder to said post, said holder further having a groove extending along said first arm and along said second arm, and

a suture having

a first end secured to said first arm of said holder,

a middle part releasably stitched into said sewing ring adjacent said first arm, passed along said groove from said first arm to said second arm, and stitched into said sewing ring adjacent said second arm, and

a second end secured to said second arm of said holder.

7. The apparatus according to claim 6 wherein said first arm of said holder fits adjacent said saddle from said first side to said post and said second arm of said holder fits adjacent said saddle from said post to said second side.

8. The apparatus according to claim 7 wherein said suture passes adjacent said post to capture said post within said connector.

9. A method for securing a mechanical heart valve in an apparatus for manipulating said heart valve, the heart valve comprising a sewing ring, an annular valve body rotatably received within said sewing ring, and at least one leaflet pivotally received within said valve body, the method comprising the steps of

inserting a rotator into said annular valve body,

attaching a sewing ring holder to said rotator, said sewing ring holder having at least two ends adjacent distinct points on said sewing ring,

tying a first end of a single suture to said sewing ring holder at a first end of said two ends thereof,

releasably securing said suture to said sewing ring adjacent said first end of said two ends,

passing said single suture along said sewing ring holder from said first end to a second end of said two ends of said sewing ring holder,

releasably securing said suture to said sewing ring adjacent said second end and

tying a second end of said suture to said sewing ring holder at said second end of said two ends thereof.

10. The method according to claim 9 wherein the step of securing the suture to the sewing ring comprises stitching said suture through said sewing ring.

11. The method according to claim 10 wherein the step of passing the suture along the sewing ring holder further comprises securing said rotator to said sewing ring holder.