Multiple Component Prosthetic Heart Valve Assemblies and Methods for Delivering Them

• US 20140336754A1
• Filed: 07/25/2014
• Published: 11/13/2014
• Est. Priority Date: 04/29/2006
• Status: Abandoned Application

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Gurskis, Donnell W., Nguyen-Fitterer, Mimi, Ino, Takashi Harry
• Application Number:
  US14/340,900
• Publication Number:
  US 20140336754A1
• Time in Patent Office: Days
• US Class Current: 623/2.11
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• 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 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2220/0083 using hook and loop-type fasteners
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2250/0063 Nested prosthetic parts
• CPC Class Codes: A61F 2250/0069 Sealing means
• CPC Class Codes: A61F 2250/0091 transparent or translucent

Abstract

Multiple component heart valves and apparatus and methods for implanting them are provided. The heart valve generally includes a first annular prosthesis and a second valve prosthesis. The first prosthesis includes an annular member compressible from a relaxed condition to a contracted condition to facilitate delivery into a biological annulus, the annular member being resiliently expandable towards the relaxed condition. The first prosthesis also includes guide rails extending therefrom. The second prosthesis includes an annular frame, valve elements, and receptacles for receiving respective guide rails therethrough when the second prosthesis is directed towards the first prosthesis. In addition, a valve holder may releasably carry the valve prosthesis that includes channels for receiving respective guide rails therethrough when the guide rails are received through the valve prosthesis. A delivery tool is also provided that includes an actuator for selectively compressing the annular member into the contracted condition.

Claims

1-5. -5. (canceled)

6. A method for delivering an annular first prosthesis into a biological annulus, the first prosthesis comprising a plurality of leaders extending therefrom, the method comprising:

securing the leaders to a delivery tool such that the first prosthesis is disposed adjacent a distal end of the delivery tool;

applying axial tension to the leaders to compress the first prosthesis inwardly to a contracted condition;

introducing the distal end of the delivery tool into a biological annulus with the first prosthesis in the contracted condition; and

deploying the first prosthesis in the biological annulus such that the prosthesis expands to an enlarged condition.

7. The method of claim 6, further comprising securing the first prosthesis to tissue surrounding the biological annulus.

8. The method of claim 7, further comprising securing a second valve prosthesis to the first prosthesis after deploying the first prosthesis in the biological annulus.

9. The method of claim 7, further comprising advancing the second prosthesis over the leaders towards the first prosthesis before securing the second prosthesis to the first prosthesis.

10. The method of claim 6, wherein tissue surrounding the biological annulus is dilated when the first prosthesis is deployed.

11-22. -22. (canceled)