System and method for applying material to a stent
First Claim
1. A method of applying an electrospun material to an inner surface of a stent, the method comprising:
- coupling a mandrel to a stent body;
wherein the stent body comprises an inner surface defining a cavity and an outer surface opposing the inner surface, andwherein the stent body has a length along an axis defined by the mandrel between a first end of the stent body and a second end of the stent body;
applying an electrospun material to at least a portion of the stent outer surface and to at least a portion of the mandrel to form a coating sheet;
wherein a portion of the coating sheet extends from at least one of the first end or second end of the stent to the mandrel; and
moving one or both of the stent and the mandrel to apply at least some of the portion of the coating sheet onto the inner surface of the stent body.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods for applying polymeric material to a stent are disclosed. A mandrel is coupled to a stent body. The stent body comprises an inner surface defining a cavity and an outer surface opposing the internal surface. The stent body also has a length along an axis defined by the mandrel between a first end of the stent body and a second end of the stent body. An electrospun material is applied to at least a portion of the stent external surface and to at least a portion of the mandrel to form a coating sheet. A portion of the coating sheet extends from at least one of the first end or second end of the stent to the mandrel. One or both of the stent and the mandrel are moved to apply at least some of the portion of the coating sheet onto the internal surface of the stent body.
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Citations
21 Claims
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1. A method of applying an electrospun material to an inner surface of a stent, the method comprising:
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coupling a mandrel to a stent body; wherein the stent body comprises an inner surface defining a cavity and an outer surface opposing the inner surface, and wherein the stent body has a length along an axis defined by the mandrel between a first end of the stent body and a second end of the stent body; applying an electrospun material to at least a portion of the stent outer surface and to at least a portion of the mandrel to form a coating sheet; wherein a portion of the coating sheet extends from at least one of the first end or second end of the stent to the mandrel; and moving one or both of the stent and the mandrel to apply at least some of the portion of the coating sheet onto the inner surface of the stent body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of applying an electrospun material to an inner surface of a stent, the method comprising:
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coupling a mandrel to a stent body; wherein the stent body comprises an inner surface defining a cavity and an outer surface opposing the inner surface, and wherein the stent body has a length along an axis defined by the mandrel between a first end of the stent body and a second end of the stent body; and coupling a secondary frame to the mandrel; applying an electrospun material to at least a portion of the stent outer surface and to at least a portion of the secondary frame to form a coating sheet; wherein a portion of the coating sheet extends from at least one of the first end or second end of the stent to the secondary frame; and moving one or both of the stent and the secondary frame to apply at least some of the portion of the coating sheet onto the inner surface of the stent body. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A method of applying an electrospun material to an inner surface of a stent, the method comprising:
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providing a stent defining an axis and having an inner surface, an outer surface, a first end, a second end, and a central cavity; extending a mandrel axially within the central cavity of the stent; rotating the stent and the mandrel along the axis; applying an electrospun material to at least a portion of the outer surface of the stent, and to at least a portion of the mandrel, while the stent and the mandrel are rotating along the axis, so that a sheet of the electrospun material is formed, tapering from at least one of the first end or the second end of the stent to the mandrel; moving either or both of the stent and the mandrel along the axis so that at least a portion of the sheet of the electrospun material is inverted within the central cavity of the stent; and covering at least a portion of the inner surface of the stent with the portion of the sheet of the electrospun material.
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Specification