Sectional crimped graft
First Claim
1. An implantable tubular graft useful to repair or replace a body passageway comprising:
- a generally tubular graft having inner and outer walls and having first and second open ends;
a central portion longitudinally extending between said ends; and
the walls having crimps located only along a portion of their length.
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0 Petitions
Accused Products
Abstract
The present invention provides a sectional crimped graft that allows graft flexibility where required and limits the overall longitudinal extension. The present invention overcomes the disadvantage of fully crimped grafts by controlling the number of crimps per unit length, crimp height, crimp geometry and their location along the graft wall, dependent on the particular end-use application. In so doing, flexibility and elongation can be controllably tailored only in areas where significant anatomical angulation is present. It may also be useful in applications other than stent grafts such as surgical grafts for aortic and peripheral areas. Limiting the overall graft longitudinal extension also facilitates the deployment of the stent-graft into the blood vessel.
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Citations
24 Claims
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1. An implantable tubular graft useful to repair or replace a body passageway comprising:
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a generally tubular graft having inner and outer walls and having first and second open ends;
a central portion longitudinally extending between said ends; and
the walls having crimps located only along a portion of their length. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An implantable tubular graft useful to repair or replace a body passageway comprising:
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a generally tubular graft having inner and outer walls and having first and second open ends;
a central portion longitudinally extending between said ends; and
the walls having one or more individual crimps located along its length, wherein said individual crimps do not share a common trough formed by adjacent peaks.
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15. A method of producing a partially crimped implantable graft comprising:
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providing an elongate tubular textile graft having a first end and a second open end defining a fluid passageway therethrough;
placing at least a portion of the graft over a mandrel having a grooved or corrugated surface which serves as a template for forming crimps; and
conforming a portion of the graft to said mandrel shape to effectuate crimps in said portion of the graft. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A method of implanting a graft device within a body lumen, comprising:
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providing a longitudinal extending tubular graft of original length, having opposing ends defining a fluid passageway therethrough and having variable crimps located along only a predetermined portion of its length;
positioning the graft device about a catheter and deploying said graft within a body vessel; and
allowing said graft to radially expand to contact a body lumen wall. - View Dependent Claims (23, 24)
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Specification