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Venous valve and graft combination

  • US 20030171802A1
  • Filed: 03/05/2002
  • Published: 09/11/2003
  • Est. Priority Date: 03/05/2002
  • Status: Active Grant
First Claim
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1. A prosthetic venous valve and graft combination comprising:

  • a. a short tube within a tube, the short tube secured to the outer tube in a line along the circumference that forms three equivalent and approximately parabolic sections, each section forming a lobe of a trilobal valve, whereby the three lobes lie flush against said outer tube with full lumenal aperture during distally higher pressure and closing the vein lumen to blood reflux at proximally higher pressure, passively actuated by venous blood pressure change and vein wall pulsation, and b. said short tube and said outer tube both formed of a compliant synthetic material.

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