Endoluminal cardiac and venous valve prostheses and methods of manufacture and delivery thereof

• US 20060167543A1
• Filed: 03/27/2006
• Published: 07/27/2006
• Est. Priority Date: 12/31/1999
• Status: Active Grant

• Current Assignee: Vactronix Scientific, LLC
• Original Assignee: ABPS Venture One, Ltd. (Palmaz Scientific, Inc.)
• Inventors: Bailey, Steven R., Boyle, Christopher T.
• Granted Patent: US 7,799,069 B2
• Time in Patent Office: Days
• US Class Current: 623/2.180
• 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 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2469 with resilient valve members, e.g. conical spiral
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0078 hyperboloidal

Abstract

This invention relates to prosthetic cardiac and venous valves and a single catheter device and minimally invasive techniques for percutaneous and transluminal valvuloplasty and prosthetic valve implantation.

Claims

1. An implantable valvular prosthesis, comprising;

a stent body member having luminal and abluminal surfaces thereof and a central annular opening along a central longitudinal axis of the stent body member;

a graft member covering at least a portion of at least one of the luminal and abluminal surfaces of the stent body member;

a proximal flange and distal flange;

wherein both the proximal flange and distal flange define opposing ends of the stent body member and project radially outward and away from the central longitudinal axis of the stent body member;

at least one valve flap member biased to a closed position under zero pressure differential across the prosthesis, the closed position acting to occlude the central annular opening of the stent body member; and

a flow regulation strut connected to one of the proximal and distal anchor flanges and coupled to the valve flap member, the flow regulation strut imparting a bias to the valve flap member.

2. The implantable valvular prosthesis of claim 1, wherein both the proximal flange and the distal flange are defined by a plurality of stent struts and interstices.

3. The implantable valvular prosthesis of claim 1, wherein the graft member further comprises an inner graft member coupled to the luminal surface of the stent body member.

4. The implantable valvular prosthesis of claim 3, wherein the at least one valve flap member comprise a plurality of valve flap members coupled to the inner graft member.

5. The implantable valvular prosthesis of claim 4, wherein the valve flap members are coupled at equidistantly spaced intervals about a luminal surface of the inner graft member.

6. The implantable valvular prosthesis of claim 3, wherein the graft member further comprises an outer graft member coupled to the abluminal surface of the stent body member.

7. The implantable valvular prosthesis of claim 6, wherein the at least one valve flap member comprise a plurality of valve flap members coupled to the inner graft member.

8. The implantable valvular prosthesis of claim 1, wherein both the proximal flange and the distal flange project substantially perpendicular to the central longitudinal axis of the stent body member.

9. The implantable valvular prosthesis of claim 1, wherein the flow regulation strut has a length which is greater than a length of a radius of the central annular opening of the stent body member.

10. The implantable valvular prosthesis of claim 1, wherein the flow regulation strut projects radially inward toward the central longitudinal axis of the stent body member.