MULTI-COMPONENT DESIGNS FOR HEART VALVE RETRIEVAL DEVICE, SEALING STRUCTURES AND STENT ASSEMBLY

• US 20150142103A1
• Filed: 01/28/2015
• Published: 05/21/2015
• Est. Priority Date: 07/28/2012
• Status: Active Grant

• Current Assignee: Tendyne Holdings Inc. (Abbott Laboratories Incorporated)
• Original Assignee: Tendyne Holdings Inc. (Abbott Laboratories Incorporated)
• Inventors: VIDLUND, Robert
• Granted Patent: US 9,895,221 B2
• Time in Patent Office: Days
• US Class Current: 623/2.17
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses
• CPC Class Codes: A61F 2002/9534 for repositioning of stents
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas
• CPC Class Codes: A61F 2250/006 modular
• CPC Class Codes: A61F 2250/0069 Sealing means

Abstract

This invention relates to the design and function of a device which allows for retrieval of a previously implanted valve prosthesis from a beating heart without extracorporeal circulation using a transcatheter retrieval system, including a guide component to facilitate the compression of the valve and retraction into a retrieval catheter, as well as an improved prosthetic transcatheter heart valve having one or more of: a series of radially extending tines having a loop terminus to improve sealing a deployed prosthetic mitral valve against hemodynamic leaking, a pre-compressible stent-in-stent design, or an articulating cuff attached to a covered stent-valve and a commissural sealing skirt structure attached to the underside of the articulating cuff.

Claims

1. A prosthetic mitral valve comprising:

an outer stent having a first end;

a circumferentially continuous tissue collar for atrial sealing, supported by said first end of said outer stents;

an outer tissue covering disposed on said outer stent;

an inner stent disposed in said outer stent; and

a leaflet apparatus disposed in said inner stent.

2. The valve of claim 1, further comprising:

a plurality of wire tethers each having a first end coupled to a second end of said outer stent and extending therefrom, each of said plurality of wire tethers having a second end; and

a junction nut coupled to said second ends of said plurality of wire tethers.

3. The valve of claim 2, further comprising an anchoring tether coupled to and extending from said junction nut.

4. The valve of claim 1, wherein said tissue collar is further coupled to a first end of said inner stent, creating a subvalvular chamber between said inner stent, said outer stent, and said tissue collar.

5. The valve of claim 1, wherein said leaflet apparatus is disposed in a lower section of said inner stent proximate to said second end of said outer stent.

6. The valve of claim 1, wherein said first end of said outer stent includes a plurality of articulating arms extending radially therefrom, said tissue collar being supported on said plurality of articulating arms.