Pre-sized prosthetic chordae implantation system

• US 8,439,969 B2
• Filed: 03/31/2010
• Issued: 05/14/2013
• Est. Priority Date: 03/31/2009
• Status: Active Grant

• Current Assignee: Cleveland Clinic Foundation
• Original Assignee: Cleveland Clinic Foundation
• Inventors: Gillinov, A. Marc, Banbury, Michael K., Hemingway, Jeremy, Berky, Craig B., Bauer, Jonathan
• Primary Examiner(s): Severson, Ryan
• Assistant Examiner(s): SHI, KATHERINE MENGLIN
• Application Number:
  US12/750,800
• Publication Number:
  US 20100249919A1
• Time in Patent Office: 1,140 Days
• Field of Search: 623/2.1, 623 212- 219, 606/151, 606/157, 606/200
• US Class Current: 623/2.11
• CPC Class Codes: A61B 17/0643 with separate closing member, e.g. for interlocking with staple
• 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 2/2466 Delivery devices therefor

Abstract

A pre-sized prosthetic chordae assembly includes a male attachment unit and a female securing member. The male attachment unit includes a plurality of pre-sized prosthetic chordae fixedly connected to at least one male attachment member and a papillary muscle penetration member that is connected to and extends substantially axial to the at least one male attachment member. The female securing member is for receiving the papillary penetration member.

Claims

1. A pre-sized prosthetic chordae assembly comprising:

a male attachment unit comprising a plurality of pre-sized prosthetic chordae fixedly connected to first and second male attachment members;

each of said first and second male attachment members having oppositely disposed first and second surfaces; and

a papillary muscle penetration member that is connected to and extends substantially axial to said first and second male attachment members; and

a female securing member for receiving said papillary penetration member;

wherein each of said pre-sized prosthetic chordae comprises a continuous first strand of a material having an arcuate first end portion and a second end portion that is formed into a knot; and

at least one rung that is axially spaced between said first and second end portions, said at least one rung including first and second ends that are securely connected to said first strand by first and second knots; and

wherein said plurality of pre-sized prosthetic chordae is disposed between said first and second male attachment members.

2. The pre-sized prosthetic chordae assembly of claim 1, wherein said papillary muscle penetration member extends substantially axial to said first and second surfaces of each of said first and second male attachment members.

3. The pre-sized prosthetic chordae assembly of claim 2, wherein said papillary muscle penetration member includes a proximal end and a sharpened distal tip, said proximal end being securely connected to said first male attachment member.

4. The pre-sized prosthetic chordae assembly of claim 2, wherein each of said pre-sized prosthetic chordae is fixedly connected to said first surface of said second male attachment member.

5. The pre-sized prosthetic chordae assembly of claim 2, wherein said second surface of said first male attachment member includes a backing for supporting said papillary muscle penetration member.

6. The pre-sized prosthetic chordae assembly of claim 2, wherein each of said second male attachment member and said female securing member include at least one channel extending therethrough.

7. The pre-sized prosthetic chordae assembly of claim 1, wherein said female securing member includes a protective member to prevent said distal tip of said papillary muscle penetration member from damaging a cardiac structure.

8. The pre-sized prosthetic chordae assembly of claim 1, wherein each of said first male attachment member, said second male attachment member, and said female securing member comprises a pledget.

9. A pre-sized prosthetic chordae assembly comprising:

a male attachment unit comprising a plurality of pre-sized prosthetic chordae fixedly connected to first and second male attachment members;

each of said first and second male attachment members having oppositely disposed first and second surfaces; and

a papillary muscle penetration member that is connected to and extends substantially axial to said first and second male attachment members; and

a female securing member for receiving said papillary penetration member;

wherein each of said pre-sized prosthetic chordae comprises a continuous first strand of a material having an arcuate first end portion and a second end portion that is formed into a knot; and

at least one rung that is axially spaced between said first and second end portions, said at least one rung including first and second ends that are securely connected to said first strand by first and second knots; and

wherein each of said pre-sized prosthetic chordae is fixedly connected to said second male attachment member.

10. The pre-sized prosthetic chordae assembly of claim 9, wherein each of said second male attachment member and said female securing member includes at least one channel extending therethrough.

11. The pre-sized prosthetic chordae assembly of claim 9, wherein each of said first male attachment member, said second male attachment member, and said female securing member comprises a pledget.