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US 8,257,431 B2Granted
Multi-furcated ePTFE grafts and stent-graft prostheses and methods of making the same
AssigneeBoston Scientific Scimed, Inc.
InventorsJamie Henderson, Krzysztof Sowinski, Ronald Rakos
Life of this patent
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Abstract
Methods of making multi-furcated grafts and, more particularly, a bifurcated graft from at least one ePTFE member are provided. Also provided are grafts made according to such methods.
Claims20
A graft comprising:
- (i) a trunk;
- (ii) at least one first branch comprising a first member;
- and
- (iii) at least one second branch comprising a second member;
- wherein said first branch and said second branch define at least one crotch area, wherein at least a portion of said first member overlaps with at least a portion of said second member to form an overlapping section, and wherein at least one of said members comprises a continuous, uninterrupted section of PTFE which spans at least a portion of said crotch area.
2 more elements
A graft comprising:
- (i) a front side and a back side;
- (ii) at least two branches defining a crotch area;
- (iii) at least one sheet of ePTFE which wraps around the graft and comprises a continuous, uninterrupted section of ePTFE which spans the crotch area on the front side of the graft;
- and
- (iv) at least one sheet of ePTFE which wraps around the graft and comprises a continuous, uninterrupted section of ePTFE which spans the crotch area on the back side of the graft.
2 more elements
A graft comprising:
- (i) a trunk;
- (ii) a crotch area;
- and
- (iii) at least one tubular member having a substantially flared end;
- wherein said tubular member comprises a continuous, uninterrupted section of ePTFE which spans said crotch area.
2 more elements
A graft comprising:
- (i) an inner layer comprising at least one tubular member comprising a radially expanded portion and at least one branch portion;
- (ii) an outer layer comprising at least one tubular member comprising a radially expanded portion and at least one branch portion;
- wherein said radially expanded portion of said outer layer surrounds said radially expanded portion of said inner layer.
Dependencies are inferred from the claim text.