Prosthetic tricuspid valve and method of and device for fabricating same

• US 3,320,972 A
• Filed: 04/16/1964
• Issued: 05/23/1967
• Est. Priority Date: 04/16/1964
• Status: Expired due to Term

• Current Assignee: Kenneth E. Woodward, Roy F. High
• Original Assignee: Kenneth E. Woodward, Roy F. High
• Inventors: High, Roy F., Woodward, Kenneth E.
• Application Number:
  US04/360,459
• Time in Patent Office: 1,132 Days
• US Class Current: 137/844
• CPC Class Codes: A61F 2/2415 Manufacturing methods
• CPC Class Codes: F16K 15/1471 slits arranged along multiple axes
• CPC Class Codes: Y10T 137/788 Having expansible port
• CPC Class Codes: Y10T 137/7882 Having exit lip
• CPC Class Codes: Y10T 137/7885 Multiple slit

Claims

1. A PROSTHETIC TRICUSPID VALVE COMPRISING (A) A VALVE HOUSING OF FLEXIBLE MATERIAL HAVING A CYLINDRICAL BORE THERETHROUGH, AND (B) THREE LEAFLETS OF A THIN, PLIABLE AND ELASTIC MATERIAL, EACH LEAFLET HAVING TWO STRAIGHT EDGES INTERSECTING AT A LARGE OBTUSE INTERIOR ANGLE AND TWO ARCUATE EDGES INTERSECTING AT A LARGE OBTUSE INTERIOR ANGLE WITH ONE OF SAID ARCUATE EDGES INTERSECTING ONE OF SAID STRAIGHT EDGES AT APPROXIMATELY AT RIGHT INTERIOR ANGLE AND THE OTHER OF SAID ARCUATE EDGES INTERSECTING THE OTHER OF SAID STRAIGHT EDGES AT APPROXIMATELY A RIGHT INTERIOR ANGLE, EACH LEAFLET FURTHER HAVING A SPHEROIDAL SHAPE, THE STRAIGHT EDGES OF EACH LEAFLET MAKING A MATING CONTACT WITH ONE STRAIGHT EDGE OF ANOTHER LEAFLET, AND THE ARCUATE EDGES OF EACH LEAFLET INTEGRALLY TO SAID HOUSING IN SAID CYLINDRICAL BORE.