Prosthetic heart valve housing

• US 20070055357A1
• Filed: 09/01/2006
• Published: 03/08/2007
• Est. Priority Date: 09/02/2005
• Status: Active Grant

• Current Assignee: Cardious, Inc.
• Original Assignee: Cardious, Inc.
• Inventors: Schankereli, Kemal, Pokorney, James
• Granted Patent: US 8,337,446 B2
• Time in Patent Office: Days
• US Class Current: 623/1.260
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• 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

Abstract

This invention relates to an implant and an implant technique for the interposition of an extracardiac conduit between a ventricle of a beating heart and a nearby blood vessel to form an alternative one-way blood pathway thereby bypassing a native diseased heart valve. More specifically, the present invention provides a prosthetic heart valve housing adopted to allow blood flow. The prosthetic heart valve housing comprises an inlet conduit element, an inlet valve housing element, an outlet valve housing element, and an outlet conduit element. To allow only one-way blood flow through the prosthetic heart valve housing, the inlet and outlet valve housing elements of the prosthetic heart valve housing are adopting to hold a surgeon selected prosthetic heart valve. One element common to many of these valve designs is an annular cuff or sealing gasket located around the periphery of the working valve. When a prosthetic valve having such a cuff element is installed by the surgeon into the prosthetic heart valve housing, the cuff element provides a seal between the valve housing elements to prevent leaks around the prosthetic valve, thereby maintaining the one-way function of the valve within the prosthetic heart valve housing. To maximize flow through the prosthetic heart valve housing, the major internal diameters of the valve housing elements are larger than the minor internal diameters of both the outlet conduit element and the inlet conduit element. To minimize adverse tissue healing response or adverse blood interaction, the blood contacting surfaces are all composed of a common material.

Claims

1. A housing for holding a prosthetic valve comprising:

a.a first valve housing having a first end opening and a second end opening, said second end opening is larger than said first end opening,

b.a second valve housing having a first end opening and a second end opening, said second end opening is larger than said first end opening, and

c.a connecting means for joining said second end of said first housing with said second end of said second housing.

2. The housing of claim 1 wherein the ratio of the cross sectional area of the second end opening of the first valve housing to the cross sectional area of the first end opening of the first valve housing is greater than 1.2:

1

3. An implantable device for holding a surgeon selected prosthetic heart valve with a periphery surface, comprising:

a. a first housing having a first end with a first end opening and a second end with second end opening, said second end opening is larger than said first end opening,

b. an annular surface on said second end of said first housing having seating means for seating to the periphery surface of a prosthetic heart valve,

c. a second housing having a first end with a first end opening and a second end with a second end opening, said second end opening is larger than said first end opening,

d. an annular surface on said second end of said second housing having seating means for seating to the periphery surface of a prosthetic heart valve, and

e. a connecting means for joining said second end of said first housing with said second end of said second housing.

4. The housing of claim 3 wherein the housing is implanted in a human body to regulate blood flow in a conduit connecting the apex of the left ventricle of the heart to the aorta.

5. A method to create a one-way blood pathway from a heart chamber to a blood vessel, the method comprising:

a) selecting a first housing having a first end with a first end opening and a second end with second end opening, said second end opening is larger than said first end opening, an annular surface on said second end of said first housing having seating means for seating to the periphery surface of a prosthetic heart valve,

b) selecting a second housing having a first end with a first end opening and a second end with second end opening, said second end opening is larger than said first end opening, an annular surface on said second end of said second housing having seating means for seating to the periphery surface of a prosthetic heart valve,

c) connecting said first end opening of said first housing to a heart chamber and said first end opening of said second housing to a blood vessel,

d) occluding said first end openings to temporarily prevent blood flow from said heart chamber and said blood vessel,

e) selecting a prosthetic heart valve, said valve having a periphery surface,

f) seating said periphery surface of said prosthetic heart valve on said annular surfaces of said first and second housings,

g) connecting said second end of said first housing with said second end of said second housing,

h) releasing said occluded first end openings.