Methods for making a supported graft
First Claim
1. A method for preparing a stent-graft for intraluminal delivery, comprising:
- positioning an expanded polytetrafluoroethylene (ePTFE) substrate over a support mandrel;
coupling a shape memory member to a polymer cladding to form a polymer clad member;
winding the polymer clad member in an overlapping helical manner onto a surface of the ePTFE substrate;
joining and sealing adjacent overlapping regions of the polymer clad member together and to the surface of the ePTFE substrate to form a stent-graft;
manipulating the stent-graft from a larger first diameter to a smaller second diameter; and
loading the stent-graft into a restraining sheath at the smaller second diameter.
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Abstract
A method for preparing a stent-graft for intraluminal delivery, including positioning an expanded polytetrafluoroethylene (ePTFE) substrate over a support mandrel, coupling a shape memory member to a polymer cladding to form a polymer clad member, winding the polymer clad member in an overlapping helical manner onto a surface of the ePTFE substrate, joining and sealing adjacent overlapping regions of the polymer clad member together and to the surface of the ePTFE substrate to form a stent-graft, manipulating the stent-graft from a larger first diameter to a smaller second diameter, and loading the stent-graft into a restraining sheath at the smaller second diameter.
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Citations
1 Claim
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1. A method for preparing a stent-graft for intraluminal delivery, comprising:
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positioning an expanded polytetrafluoroethylene (ePTFE) substrate over a support mandrel; coupling a shape memory member to a polymer cladding to form a polymer clad member; winding the polymer clad member in an overlapping helical manner onto a surface of the ePTFE substrate; joining and sealing adjacent overlapping regions of the polymer clad member together and to the surface of the ePTFE substrate to form a stent-graft; manipulating the stent-graft from a larger first diameter to a smaller second diameter; and loading the stent-graft into a restraining sheath at the smaller second diameter.
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Specification