Prosthetic vascular conduit

• US 8,512,397 B2
• Filed: 04/27/2009
• Issued: 08/20/2013
• Est. Priority Date: 04/27/2009
• Status: Active Grant

• Current Assignee: Corcym SRL (LivaNova Plc)
• Original Assignee: Sorin Group Italia SRL (LivaNova Plc)
• Inventors: Rolando, Giovanni, Gaschino, Paolo, Achiluzzi, Monica F., Carlino, Felice G.
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): WOLF, MEGAN YARNALL
• Application Number:
  US12/430,201
• Publication Number:
  US 20100274351A1
• Time in Patent Office: 1,576 Days
• Field of Search: 623 124- 126, 623/910
• US Class Current: 623/1.26
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2250/0017 differing in yarn density
• CPC Class Codes: A61F 2250/0063 Nested prosthetic parts

Abstract

A prosthetic vascular conduit for coupling to a valve having an annular portion includes a terminal collar member, radially expandable to receive the annular portion of the valve. The collar member includes a portion which is radially contractible to capture the annular portion of the valve to couple the valve to the conduit.

Claims

1. A prosthesis comprising:

a prosthetic heart valve having a plurality of leaflets for controlling blood flow through the heart valve and an annular portion having a first diameter, the annular portion located at a proximal end of the prosthetic heart valve;

a prosthetic vascular conduit including a terminal collar member radially expandable to receive the prosthetic heart valve, the terminal collar member including a contractible portion radially contractible to engage the annular portion of the prosthetic heart valve such that the prosthetic heart valve is coupled to the conduit; and

a contractible member coupled to the terminal collar member at a location proximal to the annular portion and extending about a circumference of the terminal collar member;

wherein the contractible member is a suturing wire forming a loop configured to enable a practitioner to exert a positive contraction force on the terminal collar member to reduce a diameter of the contractible portion to a second diameter smaller than the first diameter of the annular portion, such that the prosthetic heart valve is captured inside the terminal collar member.

2. The conduit of claim 1, wherein the contractible portion is a distal portion of the terminal collar member.

3. The conduit of claim 1, wherein the contractible member is disposed within a pocket formed in the terminal collar member.

4. The conduit of claim 3, wherein the pocket is formed by upturning a marginal edge of the terminal collar member.

5. The conduit of claim 1, wherein the terminal collar member is formed of a material permitting suturing of the annular portion of the valve to the conduit.

6. The conduit of claim 1, wherein the terminal collar member is comprised of a textile material.

7. The conduit of claim 1, wherein the terminal collar member is formed of a separate element and is connected to an adjacent portion of the conduit by at least one of knitting, stitching, or gluing.

8. The conduit of claim 1, wherein the contractible member is removable from the terminal collar member.

9. The conduit of claim 1, wherein the terminal collar member includes a contractible member of a radiopaque material for use as a marker.

10. The conduit of claim 1, wherein the terminal collar member includes at least one angular marker for angularly referencing the valve with respect to the terminal collar member.

11. The conduit of claim 1, wherein the conduit includes a radially expandable portion adjacent the terminal collar member.