Plain woven stents
First Claim
1. A medical stent comprising:
- a plurality of geometric cells defining a stent, the stent having first and second opposed open ends; and
a plurality of wire strands plain woven to form a plurality of crossed regions defining said geometric cells;
wherein each wire strand has strand ends and the strand ends are disposed proximate to said second end of said stent, andwherein each strand end is welded to another strand end.
1 Assignment
0 Petitions
Accused Products
Abstract
Self-expandable, woven intravascular devices for use as stents (both straight and tapered), filters (both temporary and permanent) and occluders for insertion and implantation into a variety of anatomical structures. The devices may be formed from shape memory metals such as nitinol. The devices may also be formed from biodegradable materials. Delivery systems for the devices include two hollow tubes that operate coaxially. A device is secured to the tubes prior to the implantation and delivery of the device by securing one end of the device to the outside of the inner tube and by securing the other end of the device to the outside of the outer tube. The stents may be partially or completely covered by graft materials, but may also be bare. The devices may be formed from a single wire. The devices may be formed by either hand or machine weaving. The devices may be created by bending shape memory wires around tabs projecting from a template, and weaving the ends of the wires to create the body of the device such that the wires cross each other to form a plurality of angles, at least one of the angles being obtuse. The value of the obtuse angle may be increased by axially compressing the body.
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Citations
86 Claims
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1. A medical stent comprising:
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a plurality of geometric cells defining a stent, the stent having first and second opposed open ends; and a plurality of wire strands plain woven to form a plurality of crossed regions defining said geometric cells; wherein each wire strand has strand ends and the strand ends are disposed proximate to said second end of said stent, and wherein each strand end is welded to another strand end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A medical stent comprising:
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a plurality of geometric cells defining a stent, the stent having first and second opposed open ends; and a plurality of wire strands plain woven to form a plurality of crossed regions defining said geometric cells; wherein the wire strands are bent to define said first end of said stent and further wherein each wire strand has strand ends and the strand ends are disposed proximate to said second end of said stent, and wherein each strand end is welded to another strand end. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A medical stent comprising:
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a plurality of geometric cells defining a stent, the stent having first and second opposed open ends; and a plurality of wire strands plain woven to form a plurality of crossed regions defining said geometric cells; wherein the wire strands are bent to define said first end of said stent and further wherein each wire strand has strand ends and the strand ends are helically twisted and disposed proximate to said second end of said stent, and wherein each strand end is welded to another strand end. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
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68. A medical stent comprising:
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a plurality of geometric cells defining a stent, the stent having first and second opposed open ends; and a plurality of wire strands woven to form a plurality of crossed regions defining said geometric cells; wherein the wire strands are bent to define said first end of said stent and wherein each wire strand has strand ends, each strand end disposed closer to said second end of said stent than to said first end of said stent, wherein each strand end is welded to another strand end. - View Dependent Claims (69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86)
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Specification