Stent assembly
First Claim
1. A stent assembly comprising a tubular stent, an external surface of which is provided with a fabric, characterized in that the fabric has been pre-formed into the shape of a tube, into which the stent has been placed in the unexpanded state of the stent, the fabric tube having an inner diameter which is smaller than the outer diameter of the stent when the tube is placed on the stent to achieve an inward gripping action of the fabric tube on the unexpanded stent.
1 Assignment
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Accused Products
Abstract
A stent assembly comprises an expandable tubular stent (21), an external surface of which is provided with a fabric (5) which may constitute a reservoir to hold drugs to be released in the intravascular system of a living. The fabric (5) may be made from a filamentary material, such as multifilament yarn (6). Electrospinning of nanofibers of, e.g., polymer may be employed for manufacturing the fabric. The stent may comprise an assembly of radially expandable, tubular elements (1) aligned along a common longitudinal axis and successively joined together in pairs by respective sets of linking members (4), e.g. forming a zigzag corrugation. The stent may be crimped onto a balloon.
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Citations
34 Claims
- 1. A stent assembly comprising a tubular stent, an external surface of which is provided with a fabric, characterized in that the fabric has been pre-formed into the shape of a tube, into which the stent has been placed in the unexpanded state of the stent, the fabric tube having an inner diameter which is smaller than the outer diameter of the stent when the tube is placed on the stent to achieve an inward gripping action of the fabric tube on the unexpanded stent.
Specification