Multi-lobed frame based unidirectional flow prosthetic implant

• US 20030236568A1
• Filed: 05/08/2003
• Published: 12/25/2003
• Est. Priority Date: 05/10/2002
• Status: Abandoned Application

• Current Assignee: Cordis Corporation (Cardinal Health, Inc.)
• Original Assignee: Cordis Corporation (Cardinal Health, Inc.)
• Inventors: Majercak, David Christopher, Hojeibane, Hikmat
• Application Number:
  US10/431,967
• Publication Number:
  US 20030236568A1
• Time in Patent Office: Days
• US Class Current: 623/1.24
• 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 2/2415 Manufacturing methods
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/825 having longitudinal struts
• CPC Class Codes: A61F 2002/91533 characterised by the phase between adjacent bands
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2002/91575 connected peak to trough
• CPC Class Codes: A61F 2002/91583 by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0078 hyperboloidal

Abstract

The present invention relates to a medical device, and in particular, to a stent-based valve. The valve has a radially expandable structural frame having a substantially cylindrical configuration with first and second open ends and a longitudinal axis extending there between. The structural frame is formed from a lattice of interconnected elements and has a plurality of distal crowns. A biocompatible membrane assembly maintaining a substantially cylindrical shape about the longitudinal axis is attached to the structural frame such that the structural frame supports the biocompatible membrane assembly in a slack condition between the distal crowns.

Claims

1. A prosthetic valve comprising:

a radially expandable structural frame having a plurality of distal crowns, the structural frame being formed from a lattice of interconnected elements, and having a substantially cylindrical configuration with first and second open ends and a longitudinal axis extending there between;

a tubular biocompatible membrane coaxially disposed over at least a portion of the structural frame such that the structural frame supports the biocompatible membrane assembly in a slack condition between the distal crowns.

2. The prosthetic valve of claim 1 wherein the structural frame further comprises a valve strut attached to at least one of the distal crowns and extending in a distal direction substantially parallel to the longitudinal axis.

3. The prosthetic valve of claim 1 wherein the distal crowns are articulating.

4. The prosthetic valve of claim 1 wherein the biocompatible membrane assembly extends in a distal direction past the distal crowns.

5. A prosthetic valve comprising:

a radially expandable structural frame having a plurality of distal crowns, the structural frame being formed from a lattice of interconnected elements, and having a substantially cylindrical configuration with first and second open ends and a longitudinal axis extending there between;

a tubular biocompatible membrane coaxially disposed over at least a portion of the structural frame such that the structural frame supports the biocompatible membrane assembly in a flexible condition between the distal crowns.

6. A prosthetic valve comprising:

a substantially cylindrical structural frame having a hoop structure, the hoop structure having a plurality of distal crowns;

a substantially cylindrical biocompatible membrane assembly coaxially disposed over the structural frame such that the structural frame supports the biocompatible membrane assembly in a slack condition between the distal crowns.

7. A prosthetic valve having a radially expandable structural frame comprising:

a cylindrical hoop structure having a plurality of distal and proximal crowns;

a proximal anchor formed from a lattice of interconnected elements and having a substantially cylindrical configurations;

one or more connecting members, the one or more connecting members having a first and a second end, the first end of each connecting member being attached to the proximal anchor and the second end of each connecting member being attached to the hoop structure; and

a substantially cylindrical biocompatible membrane assembly attached to the proximal anchor and extending distally along the one or more connecting members to the distal crowns, such that the distal crowns.