Endoluminal prosthesis with fiber matrix
First Claim
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1. An expandable endoluminal prosthesis comprising:
- a graft body and a support structure attached to the graft body, the graft body comprising;
a tubular body of nonwoven electrospun fibers disposed about a longitudinal axis, wherein the tubular body comprises an inner layer of nonwoven electrospun fibers and an outer layer of nonwoven electrospun fibers;
a first fiber matrix comprising a plurality of discrete circumferentially wound filaments attached to the tubular body and extending circumferentially around the tubular body; and
a second fiber matrix comprising a plurality of discrete longitudinally extending filaments attached to the tubular body and extending in a longitudinally along the tubular bodywherein each of the first fiber matrix and the second fiber matrix are disposed along an inner surface of the outer layer of the nonwoven electrospun fibers such that the first fiber matrix and the second fiber matrix are encapsulated between the inner layer and the outer layer of nonwoven electrospun fiber.
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Abstract
An expandable endoluminal prosthesis may include a graft body and a support structure attached to the graft body. The graft body may include a tubular body of nonwoven electrospun fibers disposed about a longitudinal axis. A first fiber matrix segment may be attached to and extend in a transverse direction along the tubular body. A second fiber matrix segment may be attached to and extend in a longitudinal direction along the tubular body.
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Citations
17 Claims
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1. An expandable endoluminal prosthesis comprising:
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a graft body and a support structure attached to the graft body, the graft body comprising; a tubular body of nonwoven electrospun fibers disposed about a longitudinal axis, wherein the tubular body comprises an inner layer of nonwoven electrospun fibers and an outer layer of nonwoven electrospun fibers; a first fiber matrix comprising a plurality of discrete circumferentially wound filaments attached to the tubular body and extending circumferentially around the tubular body; and a second fiber matrix comprising a plurality of discrete longitudinally extending filaments attached to the tubular body and extending in a longitudinally along the tubular body wherein each of the first fiber matrix and the second fiber matrix are disposed along an inner surface of the outer layer of the nonwoven electrospun fibers such that the first fiber matrix and the second fiber matrix are encapsulated between the inner layer and the outer layer of nonwoven electrospun fiber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 17)
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9. An expandable endoluminal prosthesis comprising:
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a graft body and a support structure attached to the graft body, the graft body comprising; a tubular body of nonwoven electrospun fibers disposed about a longitudinal axis, wherein the tubular body comprises an inner layer of nonwoven electrospun fibers and an outer layer of nonwoven electrospun fibers; a first fiber matrix attached to the tubular body and having fibers that extend circumferentially around the tubular body; and a second fiber matrix attached to the tubular body and having fibers that extend in a longitudinally along the tubular body, wherein each of the first fiber matrix and the second fiber matrix are disposed along an inner surface of the outer layer of the nonwoven electrospun fibers such that the first fiber matrix and the second fiber matrix are encapsulated between the inner layer and the outer layer of nonwoven electrospun fibers, wherein the first fiber matrix is longitudinally shorter than the graft body, a longitudinal portion of the graft body comprising the first fiber matrix comprises an attachment site, and the support structure is attached to the first fiber matrix at the attachment site to attach the support structure to the graft body, and wherein the attachment site comprises a suture zone, and the support structure is sutured to the first fiber matrix to attach the support structure to the graft body.
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10. An expandable endoluminal prosthesis comprising:
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a graft body and a support structure attached to the graft body, the graft body comprising; a tubular body of nonwoven electrospun fibers disposed about a longitudinal axis, wherein the tubular body comprises an inner layer of nonwoven electrospun fibers and an outer layer of nonwoven electrospun fibers; a first fiber matrix attached to the tubular body and having fibers that extend circumferentially around the tubular body; and a second fiber matrix attached to the tubular body and having fibers that extend in a longitudinally along the tubular body, wherein each of the first fiber matrix and the second fiber matrix are disposed along an inner surface of the outer layer of the nonwoven electrospun fibers such that the first fiber matrix and the second fiber matrix are encapsulated between the inner layer and the outer layer of nonwoven electrospun fibers, and wherein at least one of the first fiber matrix and the second fiber matrix comprises a loop point comprising a loop of filamentary material extending away from the tubular body. - View Dependent Claims (11, 12)
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13. An expandable endoluminal prosthesis comprising:
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a graft body and an expandable support structure attached to the graft body, the graft body comprising; a tubular body of nonwoven electrospun fibers disposed about a longitudinal axis, wherein the tubular body comprises an inner layer of nonwoven electrospun fibers and an outer layer of nonwoven electrospun fibers; a transverse fiber matrix comprising a plurality of discrete circumferentially wound filaments at least partially encapsulated within the tubular body and having fibers extending around a circumference of the tubular body; and a longitudinal fiber matrix comprising a plurality of discrete longitudinally extending filaments at least partially encapsulated within the tubular body and having fibers extending primarily longitudinally along the tubular body; wherein the support structure is attached to at least one of the transverse fiber matrix and the longitudinal fiber matrix to attach the support structure to the graft body, and wherein each of the transverse fiber matrix, the longitudinal fiber matrix, and the support structure are disposed along an inner surface of the outer layer of nonwoven electrospun fibers such that the transverse fiber matrix, the longitudinal fiber matrix, and the support structure are encapsulated between the inner layer and the outer layer of nonwoven electrospun fibers. - View Dependent Claims (14, 15, 16)
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Specification