Heart valve and endovascular graft components and method for delivery

• US 10,034,784 B2
• Filed: 04/17/2014
• Issued: 07/31/2018
• Est. Priority Date: 04/17/2013
• Status: Active Grant

• Current Assignee: Gilbert H.L. Tang
• Original Assignee: Gilbert H.L. Tang
• Inventors: Tang, Gilbert H. L.
• Primary Examiner(s): Prone, Christopher D
• Assistant Examiner(s): Diop, Rokhaya
• Application Number:
  US14/255,853
• Publication Number:
  US 20140316513A1
• Time in Patent Office: 1,566 Days
• CPC Class Codes: A61F 2/07 Stent-grafts
• 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 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/852 Two or more distinct overlapping stents
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2230/0043 L-shaped
• CPC Class Codes: A61F 2250/0063 Nested prosthetic parts

Abstract

A medical device including a valve member with an elongate tubular portion with at least one aperture disposed in a sidewall at a location between the proximal and distal ends, and a plurality of leaflets; a first endovascular graft coupled to the valve member; and a second endovascular graft coupled to the first endovascular graft; and an expandable anchor member coupled to the second endovascular graft.

Claims

1. A medical device comprising:

a valve member, the valve member including;

an elongate tubular portion having a proximal end and a distal end defining a length therebetween, the elongate tubular portion having at least one aperture disposed in a sidewall at a location between the proximal and distal ends, and

a plurality of leaflets,

a first endovascular graft having a proximal end and a distal end defining a length therebetween and an opening at the proximal and distal ends, the first endovascular graft configured for coupling to the valve member;

a second endovascular graft having a proximal end and a distal end defining a length therebetween and an opening at the proximal and distal ends, the second endovascular graft having a bifurcated lumen including a main lumen extending the length of the graft and a branched lumen longitudinally offset to a side of the main lumen, the second endovascular graft configured for coupling to the first endovascular graft; and

an expandable anchor member having a proximal end and a distal end defining a length therebetween and an opening at the proximal and distal ends, the expandable anchor member configured for coupling to the second endovascular graft with the proximal end of the expandable anchor member disposed within the main lumen and between the proximal and distal ends of the second endovascular graft, and the distal end of the expandable anchor member extending outward from the second endovascular graft at a location between the proximal and distal ends of the second endovascular graft.

2. The medical device of claim 1, wherein the elongate tubular portion of the valve member has a non-uniform geometry.

3. The medical device of claim 1, wherein the proximal end and distal end of the elongate tubular portion of the valve member have a first diameter, and a midpoint of the elongate tubular portion of the valve member has a second diameter.

4. The medical device of claim 1, wherein the elongate tubular portion of the valve member has a tapered contour.

5. The medical device of claim 1, wherein the at least one aperture in the elongate tubular portion of the valve member is disposed proximate a midpoint between the proximal and distal ends of the elongate tubular portion.

6. The medical device of claim 1, wherein the valve member and first endovascular graft are formed as an integral unit.

7. The medical device of claim 1, wherein the valve member, first endovascular graft, second endovascular graft, and expandable anchor member are formed as separate components.

8. The medical device of claim 1, wherein the valve member is self-expanding.

9. The medical device of claim 1, wherein the expandable anchor member is a self-expanding stent, with a distal end offset by an angle of approximately 90 degrees with respect to the proximal end.

10. The medical device of claim 1, wherein the second endovascular graft includes a sidewall aperture at a location disposed between the proximal and distal ends thereof.

11. The medical device of claim 10, wherein the expandable anchor member is in fluid communication with the sidewall aperture of the second endovascular graft.

12. The medical device of claim 1, further comprising a seal member disposed at a proximal end of the valve member.

13. A medical device comprising:

a valve member, the valve member including;

a plurality of leaflets, adjacent leaflets joined at valve commissures, and an elongate tubular portion having a proximal end and a distal end defining a length therebetween and a graft material extending over at least a portion of the tubular portion, the elongate tubular portion having at least one aperture disposed in a sidewall at a location proximate the valve commissures,

a first endovascular graft having a proximal end and a distal end defining a length therebetween and an opening at the proximal and distal ends, the proximal end of the first endovascular graft configured for coupling to the valve member;

at least one coronary stent, the at least one coronary stent configured for coupling to the at least one aperture of the elongate tubular portion of the valve member;

wherein the proximal end and distal end of the elongate tubular portion of the valve member have a first diameter, and a midpoint of the elongate tubular portion of the valve member has a second diameter, with a smallest diameter located proximate the at least one aperture.

14. The medical device of claim 13, wherein the valve member and first endovascular graft are formed as an integral unit.

15. The medical device of claim 13, wherein the at least one coronary stent has a first end with a diameter equal to or larger than a diameter of the at least one aperture of the valve member.

16. The medical device of claim 15, wherein the at least one coronary stent includes a flared end, the flared end coupled to the elongate tubular portion of the valve member.