Physiologic mitral valve implantation holding system

• US 5,908,450 A
• Filed: 02/28/1997
• Issued: 06/01/1999
• Est. Priority Date: 02/28/1997
• Status: Expired due to Term

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Shu, Mark C. S., Gross, Jeffrey M., Salazar, Luis A.
• Primary Examiner(s): Willse, David H.
• Application Number:
  US08/808,553
• Time in Patent Office: 823 Days
• Field of Search: 623/2, 623/900
• US Class Current: 623/2.11
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses
• CPC Class Codes: A61F 2250/0097 Visible markings, e.g. indicia

Abstract

A temporary holder for a physiologic mitral valve includes a structure which releasably clamps the annulus of the valve between the rim of a plate and a snap ring. The structure also includes a pair of papillary head holders which hold the papillary heads of the valve at a predetermined distance and angle from the annulus plate for optimum surgical positioning. The papillary heads are temporarily sutured to their holders and can be released by a simple scalpel stroke.

Claims

1. A temporary holding system for physiologic mitral valves, comprising:

a) a support member adapted to supportingly receive the annulus of a physiologic mitral valve having an annulus and papillary heads; and

b) a pair of papillary head holders rigidly positioned with respect to said support member and adapted to have said papillary heads of said valve temporarily attached thereto.

2. The system of claim 1, in which said support member includes:

i) a plate member having a rim and including a plate adapted to receive around said rim said annulus of said physiologic mitral valve; and

ii) a retaining member adapted to be positioned around said rim to releasably retain said annulus on said rim without damage to said annulus.

3. The system of claim 1, in which said support member includes a plate member with substantially parallel concentric depending circumferential flanges adapted to receive said annulus therebetween, said flanges having transverse openings therein adapted to allow the passage of sutures for releasably securing said annulus to said plate member.

4. The system of claim 2, in which said retaining member includes a plurality of coplanar interengageable clamps each surrounding a portion of said rim.

5. The system of claim 2, in which said rim is rounded in cross section.

6. The system of claim 1, in which said papillary head holders are arranged to each have a papillary head temporarily secured thereto by a holding element.

7. The system of claim 6, in which said holding element is a suture.

8. The system of claim 7, in which said holders each have a scalpel groove on their back side, said holding element extending across said groove for easy severing of said suture to release said papillary head from said holder.

9. A temporary holding system for physiologic mitral valves, comprising:

a) a support member adapted to supportingly receive the annulus of a physiologic mitral valve having an annulus and papillary heads; and

b) a pair of papillary head holders rigidly positioned with respect to said support member and adapted to have said papillary heads of said valve temporarily attached thereto;

c) said support member including;

i) a plate member having a rim and including a plate adapted to receive around said rim said annulus of said physiologic mitral valve; and

ii) a retaining member adapted to be positioned around said rim to releasably retain said annulus on said rim without damage to said annulus; and

iii) said retaining member including a plurality of coplanar interengageable clamps each surrounding a portion of said rim.

10. The system of claim 9, in which said clamps are interengageable in the form of a snap ring.

11. The system of claim 10, in which said annulus can be released from said clamping member after the interengagement of said clamps by moving said plate member downwardly from the plane of said retaining member.

12. The system of claim 11, further comprising a releasable locking key arranged to engage said plate member and said retaining member to prevent said downward movement of said retaining member with respect to said plate.

13. A temporary holding system for physiologic mitral valves, comprising:

a) a support member adapted to supportingly receive the annulus of a physiologic mitral valve having an annulus and papillary heads; and

b) a pair of papillary head holders rigidly positioned with respect to said support member and adapted to have said papillary heads of said valve temporarily attached thereto;

c) said support member including;

i) a plate member having a rim and including a plate adapted to receive around said rim said annulus of said physiologic mitral valve; and

ii) a retaining member adapted to be positioned around said rim to releasably retain said annulus on said rim without damage to said annulus;

iii) said retaining member having a wall arranged to clamp said annulus, said wall being downwardly outwardly tapered.

14. A temporary holding system for physiologic mitral valves, comprising:

a) a support member adapted to supportingly receive the annulus of a physiologic mitral valve having an annulus and papillary heads;

b) a pair of papillary head holders rigidly positioned with respect to said support member and adapted to have said papillary heads of said valve temporarily attached thereto;

c) said support member including;

i) a plate member having a rim and including a plate adapted to receive around said rim said annulus of said physiologic mitral valve; and

ii) a retaining member adapted to be positioned around said rim to releasably retain said annulus on said rim without damage to said annulus; and

d) said support member being transparent to allow observation of positioning markings on said annulus.

15. A temporary holding system for physiologic mitral valves, comprising:

a) a support member adapted to supportingly receive the annulus of a physiologic mitral valve having an annulus and papillary heads;

b) a pair of papillary head holders rigidly positioned with respect to said support member and adapted to have said papillary heads of said valve temporarily attached thereto;

c) said support member including a plate member with substantially parallel depending circumferential and substantially concentric inner and outer flanges adapted to receive said annulus therebetween, said flanges having transverse openings therein circumferentially aligned with one another and adapted to allow the passage of sutures for releasably securing said annulus to said plate member.