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Apparatus and methods for providing selectively adjustable blood flow through a vascular graft

  • US 5,797,879 A
  • Filed: 08/26/1996
  • Issued: 08/25/1998
  • Est. Priority Date: 08/26/1996
  • Status: Expired due to Term
First Claim
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1. Apparatus for adjusting blood flow within a vascular graft, the vascular graft being formed of a compliant material having an exterior surface and a cross-section, the apparatus comprising:

  • a balloon disposed against the exterior surface of the vascular graft;

    a sheath disposed around the balloon and the vascular graft, the sheath being substantially less compliant than the vascular graft, the sheath having a portion forming an aperture adjacent to the balloon;

    a first subcutaneously implantable access port; and

    a substantially non-distendable lumen disposed through the aperture in the sheath to provide fluid communication between the balloon and the first subcutaneously implantable access port;

    wherein inflation of the balloon to constrict the vascular graft causes substantially no crimping or infolding of the compliant material.

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