Claims
- 1. A vaso-occlusive device comprising at least one substantially linear strand of a vaso-occlusive member wound into and self-forming a stable, complex three-dimensional relaxed configuration.
- 2. The vaso-occlusive device of claim 1 wherein the relaxed configuration comprises loops of the vaso-occlusive member and the relaxed configuration fills a body cavity having a diameter.
- 3. The device of claim 2 wherein the inner loops of the relaxed configuration have a diameter which is less than 25% of the diameter of the body cavity.
- 4. The device of claim 2 wherein the inner loops of the relaxed configuration have a diameter which is less than 50% of the diameter of the body cavity.
- 5. The device of claim 2 wherein the inner loops of the relaxed configuration have a diameter which is less than 90% of the diameter of the body cavity.
- 6. The device of claim 1 wherein said vaso-occlusive member passes through the interior of said relaxed configuration.
- 7. The device of claim 1 more than about 10% of the at least one substantially linear strand is in inner 85% of the diameter of said relaxed configuration.
- 8. The device of claim 1 wherein the vaso-occlusive member is selected from at least one helically wound coil and braided tubular members.
- 9. The device of claim 8 wherein the vaso-occlusive member is a helically wound coil.
- 10. The device of claim 1 wherein the relaxed configuration is spherical, oval, elliptical, clover or box-like.
- 11. The device of claim 1 wherein the relaxed configuration is spherical.
- 12. The device of claim 1 wherein the relaxed configuration is oval.
- 13. The device of claim 1 wherein the relaxed configuration is elliptical.
- 14. The device of claim I wherein the relaxed configuration is box-shaped.
- 15. The device of claim I wherein the vaso-occlusive member comprises a metal selected from the group consisting of platinum, palladium, rhodium, gold, tungsten, and their alloys.
- 16. The device of claim 15, wherein the vaso-occlusive member comprises an alloy of platinum and tungsten.
- 17. The device of claim 1 wherein the vaso-occlusive member comprises an alloy selected from stainless steels and super-elastic alloys.
- 18. The device of claim 17 wherein the vaso-occlusive member comprises nitinol.
- 19. A method of producing a vaso-occlusive device comprising a vaso-occlusive member would into and self-forming into a complex three-dimensional relaxed configuration comprising:
a) winding at least one strand of a generally linear vaso-occlusive member onto a mandrel having a center post, b) heating the mandrel and vaso-occlusive member to produce said vaso-occlusive device.
- 20. The method of claim 19 wherein said mandrel further comprises side or top pins on said center post.
- 21. The method according to claim 19 wherein the center post is square, round, box-like, elliptical or clover-shaped.
- 22. The method according to claim 20 wherein the center post is square, round, rubix or clover shaped and wherein the side or top pins are square, round or elliptical.
- 23. The method according to claim 20, wherein the side or top pins are staggered with respect to each other.
- 24. The method according to claim 20, wherein the staggered side pins are in rows along the center post.
- 25. The method of claim 19 wherein the step b) is at about 1100° F.
- 26. A vaso-occlusive device produced by the method of claim 19.
- 27. A vaso-occlusive device produced by the method of claim 20.
- 28. A vaso-occlusive device produced by the method of claim 21.
- 29. A vaso-occlusive device produced by the method of claim 22.
- 30. A vaso-occlusive device produced by the method of claim 23.
- 31. A vaso-occlusive device produced by the method of claim 24.
- 32. The device of claim 1 wherein the vaso-occlusive member has a first end and a second end and additionally comprising a deployment tip attached to at least one of the first end and second end.
- 33. The device of claim 32 wherein the deployment tip comprises a mechanically detachable end adapted to attach to and detach from a pusher.
- 34. The device of claim 33 wherein the deployment tip comprises an electrolytically detachable end adapted to detach from a pusher by imposition of a current on said pusher.
- 35. A method for deploying a vaso-occlusive device according to any one of claims 1 through 18 comprising:
(a) placing the vaso-occlusive device in a delivery catheter; (b) placing the delivery catheter within an opening of a body cavity; (c) ejecting the vaso-occlusive device from the delivery catheter into the opening of the body cavity; and (d) withdrawing the delivery catheter, wherein the vaso-occlusive device assumes a relaxed configuration within the body cavity when ejected from the catheter.
- 36. A method of introducing a vaso-occlusive device into a body space or cavity, comprising:
(a) placing the vaso-occlusive device in a delivery catheter having a tip; (b) inserting the tip of the delivery catheter into the body cavity; (c) ejecting the coil from the tip of the delivery catheter into the central region body cavity, wherein the coil self-winds into a stable, complex three-dimensional relaxed configuration.
- 37. The method according to claim 36 wherein the relaxed configuration comprises a series of loops which are less than the diameter of the body cavity.
RELATED APPLICATIONS
[0001] This application is a continuation-in-part of U.S. Ser. No. 08/924,010, filed Aug. 29, 1997.
Continuations (1)
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Number |
Date |
Country |
Parent |
09018278 |
Feb 1998 |
US |
Child |
09974068 |
Oct 2001 |
US |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
08924010 |
Aug 1997 |
US |
Child |
09018278 |
Feb 1998 |
US |