US Patent No: 4,222,126

Number of patents in Portfolio can not be more than 2000

Unitized three leaflet heart valve

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ATTORNEY / AGENT: (SPONSORED)
 

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Abstract

A polyurethane heart valve has a semirigid frame composed of a base ring and three struts, and an elastomeric membrane integral and unitary with the frame, the contours of which make up three leaflets of the valve. The leading edges of the leaflets which form the commissure line are reinforced with a narrow elastomer band. The leaflets are further reinforced by radiating lines projected from the frame into the leaflet and which simulate collagen formation in natural leaflets. In addition, the transition between the frame and the leaflets is tapered.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE DEPARTMENT OF HEALTH, EDUCATION & WELFAREWASHINGTON, DC3

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boretos, John W Rockville, MD 5 455
Iriguchi, Norio J-Kanagawa, JP 6 449

Cited Art

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Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
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