SYSTEMS, DEVICES AND METHODS FOR IMPROVED OCCLUSION AND DELIVERY
Disclosed are example embodiments of methods and systems for delivering a medical implant. One of the systems includes an occlusive device with a braided elongate polymer body and a shape memory wire coupled with the polymer body. Various configurations for the occlusive device are disclosed. Also disclosed is a transfer tool for use with various delivery systems.
1 . An occlusive device comprising:
an elongate polymer body including a cover formed of a fiber; and
a shape memory wire coupled with the polymer body, wherein the shape memory wire is secured to the elongate polymer body.
2 . The occlusive device of claim 1 , further comprising a coupler at a proximal end, the coupler being coupled to the cover.
3 . The occlusive device of claim 1 , wherein the fiber is braided.
4 . The occlusive device of claim 1 , wherein the fiber is knitted.
5 . The occlusive device of claim 1 , wherein the shape memory wire is formed of an instilled non-straight shape.
6 . The occlusive device of claim 1 , wherein the cover comprises a first and second fiber.
7 . The occlusive device of claim 6 , wherein the shape memory wire is interlaced in the cover.
8 . The occlusive device of claim 1 , wherein the cover is formed to wrap around the shape memory wire and the elongate polymer body.
9 . The occlusive device of claim 1 , wherein the elongate polymer body, cover and shape memory wire are secured together.
10 . The occlusive device of claim 9 , wherein the elongate polymer body, cover, and shape memory wire are secured together with at least one of a band, a clamp, a cap, adhesive, or a tubular element.
11 . The occlusive device of claim 1 , wherein the shape memory wire extends over 1 or more segments along the length of the elongate polymer body.
12 . The occlusive device of claim 1 , wherein the shape memory wire is a shape memory metallic alloy.
13 . The occlusive device of claim 12 , wherein the shape memory metallic alloy is nitinol.
14 . An occlusive device comprising:
an elongate polymer body including a cover;
a shape memory wire coupled with the polymer body, wherein the shape memory wire is secured to the elongate polymer body; and
an engagement structure formed at a proximal end of the elongate polymer body, the engagement structure comprising a tube,
wherein the tube is coupled to the cover.
15 . The occlusive device of claim 14 , wherein the tube is coupled to the cover with a girth hitch knot.
16 . The occlusive device of claim 14 , wherein the polymer body comprises a single polymer strand.
17 . The occlusive device of claim 14 , wherein the polymer body is radiopaque and shape memory.
18 . The occlusive device of claim 14 , wherein the shape memory wire comprises a multifilament braided structure formed in an instilled non-straight form.
19 . The occlusive device of claim 14 , wherein the shape memory wire comprises multifilament structure comprises a first filament and a second filament, the first filament and second filament each being formed in a different shape.
20 . An occlusive device comprising:
an elongate polymer body, the elongate polymer body including a cover, the cover being formed of a fiber, wherein the polymer body comprises radiopaque and shape memory properties.
21 . The occlusive device of claim 20 , wherein the elongate polymer body comprises a proximal end, the proximal end comprising a coupler.
22 . The occlusive device of claim 20 , wherein the polymer body is formed in an instilled non-straight shape.