Vascular graft with compartments for compliance matching
AssigneeCook Medical Technologies LLC
InventorsWilliam S. Gibbons, Jr., Kenneth A. Haselby, Jarin A. Kratzberg, Keith R. Milner
Life of this patent
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Abstract
A graft having a tubular body having a first end configured for attachment to a first vessel having a first compliance and second end configured for attachment to a second vessel having a second compliance different from the first compliance, and having a plurality of compressible chambers in the wall of the tubular body in which the chamber adjacent the first end of the tubular body is less compressible than the chamber adjacent the second end of the tubular body such that first end of the tubular body substantially matches the first compliance and the second end of the tubular body substantially matches the second compliance.
Claims18
A graft for improving vascular compliance, the graft comprising:
- a tubular body having a first end configured for attachment to an artery having a first compliance and second end configured for attachment to a vein having a second compliance different from the first compliance, the tubular body having an outer sidewall and an inner sidewall;
- a lumen extending between the first end and the second end;
- a first compressible chamber adjacent the first end of the tubular body and disposed between the inner side wall and the outer side wall;
- and
- a second compressible chamber adjacent the second end of the tubular and disposed between the inner side wall and the outer side wall;
- wherein the first chamber adjacent the first end of the tubular body is less compressible than the second chamber adjacent the second end of the tubular body such that first end of the tubular body substantially matches the first compliance and the second end of the tubular body substantially matches the second compliance.
A substantially tubular graft for placement between an artery and a vein and comprising:
- a first end, a second end, an internal side wall and an external side wall, and a length in between the first end and the second end,
- a plurality of axial chambers disposed along the length of the graft between the first end and the second end;
- and
- a compliance gradient from the first end to the second end, wherein the compliance of the graft increases from the first end to the second end;
- and
- wherein the first end has a compliance configured to substantially match the compliance of the artery and the second end has a compliance configured to substantially match the compliance of the vein.
A graft configured for placement between an artery and a vein comprising:
- a first end configured to be attached to an artery;
- a second end configured to be attached to a vein;
- a lumen between the first end and the second end;
- an internal side wall of graft material extending from the first end to the second end;
- an external side wall of graft material extending from the first end to the second end and concentric with the internal side wall;
- and
- an axial series of chambers between the internal side wall and the external side wall, each of the axial series of chambers extending circumferentially about a circumference of the graft;
- wherein the first end of the graft has a compliance configured to match the compliance of the artery, and the second end of the graft has a compliance greater than the first end that is configured to match the compliance of the vein.
Dependencies are inferred from the claim text.