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

• US 9,421,100 B2
• Filed: 03/23/2015
• Issued: 08/23/2016
• Est. Priority Date: 12/31/1999
• Status: Expired due to Fees

• Current Assignee: Vactronix Scientific, LLC
• Original Assignee: ABPS Venture One, Ltd. (Palmaz Scientific, Inc.)
• Inventors: Bailey, Steven R., Boyle, Christopher T.
• Primary Examiner(s): STEWART, ALVIN J
• Application Number:
  US14/665,817
• Publication Number:
  US 20150366667A1
• Time in Patent Office: 519 Days
• Field of Search: 623/1.24, 623/1.26, 623/2.14, 623/2.18, 623/2.12
• US Class Current: 1/1
• 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 proximal anchoring section disposed at the proximal end of the stent body comprising a plurality of stent struts which project radially outward away from the central longitudinal axis of the stent body member and wherein orientation of the struts provides interstices between adjacent struts to prevent the prosthesis from impinging upon an adjacent structure;

a graft member comprising an outer graft member coupled to the abluminal surface of the stent body member and an inner graft member coupled to the luminal surface of the stent body member, wherein a terminal portion of the inner graft member is everted inwardly toward the central longitudinal axis of the stent body member;

at least one biasing arm projecting from the stent body member and into the central annular opening of the stent body member; and

at least one valve flap member formed by the terminal portion of the inner graft member coupled to the at least one biasing arm, the at least one valve flap member assuming a position, under zero pressure differential across the prosthesis, which occludes the central annular opening of the stent body member.

2. The implantable valvular prosthesis according to claim 1, wherein the stent body member further comprises a distal anchoring section.

3. The implantable valvular prosthesis according to claim 2, wherein the distal anchoring section further comprises a radially enlarged section of the stent body member which communicates with the central opening of the stent body member.

4. The implantable valvular prosthesis according to claim 1, wherein the at least one valve flap member comprise a plurality of valve flap members coupled at portions thereof to the luminal surface of the inner graft member.

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

6. The implantable valvular prosthesis according to claim 1, further comprising:

a. a catheter body defining a central longitudinal lumen, the catheter body comprises a distal stent capturing section capturing the stent body member;

b. a guidewire shaft positioned co-axially within the central longitudinal lumen of the catheter body and passing through an entire longitudinal length of the catheter body; and

c. an annular plug member concentrically coupled to the guidewire shaft and positioned proximal the distal stent capturing section, the annular plug member terminating the central longitudinal lumen of the catheter body in a fluid tight manner and being moveable within the distal stent capturing section.