Natural tissue heart valve prosthesis

Details Natural tissue heart valve prosthesis Natural tissue heart valve prosthesis

1998-03-31

1999-08-10

Willse, David H.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Heart valve

Having rigid or semirigid pivoting occluder

A61F 224

Patent

active

059351632

ABSTRACT:
A heart valve prosthesis (88; 128) having a plurality of leaflets (18, 20 and 22; 138, 140 and 142). The valve (10; 130) is covered with a sheath (90; 172) of natural tissue. The sheath (90; 172) extends from an inflow end (12; 132) of the valve (10; 130) beyond an outflow end (14; 134) of the valve (12; 132) to define a plurality of lobes (98, 100 and 102; 182, 184 and 186). A substantially flexible annular ring (60; 162) may be positioned between the sheath (90; 172) and the heart valve (10; 132) to provide additional stability.

REFERENCES:
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patent: 3983581 (1976-10-01), Angell et al.
patent: 4247292 (1981-01-01), Angell et al.
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patent: 4477930 (1984-10-01), Totten et al.
patent: 4626255 (1986-12-01), Reichart et al.
patent: 4759758 (1988-07-01), Gabbay
patent: 5156621 (1992-10-01), Navia et al.
patent: 5336258 (1994-08-01), Quintero et al.
patent: 5549665 (1996-08-01), Vesely et al.

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