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SPLIT LEAFLET CHECK VALVE FOR CARDIAC SURGERY AND THE LIKE

  • US 3,589,392 A
  • Filed: 05/05/1969
  • Issued: 06/29/1971
  • Est. Priority Date: 05/05/1969
  • Status: Expired due to Term
First Claim
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1. A heart valve for cardiac surgery comprising a hollow, cylindrical valve body provided with an inner, beveled valve seat having oppositely disposed reversely inclined edges facing in the direction of flow, an annular split leaflet supported by the valve body having a pair of oppositely disposed separable portions extending from one end of the body in the direction of flow, hinge means at the valve seat for supporting said separable portions along the inner side portions of said valve body, said hinge means for each separable portion including a relatively narrow section of resilient material and a base section forming a broader continuation of the hinge means to secure each separable portion from within the valve body, said separable portions having sealing edges converging in the direction of flow extending along the reversely inclined edges of the valve seat and terminating in longitudinal sealing edges at the free ends thereof, said separable portions swinging between a normally closed position with the longitudinal and sealing edges in sealed relation to the valve seat and to one another, respectively, and an open position with the inner wall surface of the separable portions defining a longitudinal continuation of the inner wall surfaceS of the valve body.

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