Claims
- 1. A vasoocclusive device comprising:
- (a) a coil having helical windings extending between a first end and a second end, a primary coil axis extending between said first end and a second end, and defining a primary coil form, said primary coil form being self-forming into a selected secondary coil form with a secondary coil form interior, and
- (b) a plurality of fibrous elements attached to said coil and located with respect to said primary coil form so that upon said self-forming, the majority of said plurality of fibrous elements resides within said secondary coil form interior.
- 2. The vasoocclusive device of claim 1 wherein said plurality of fibrous elements are threaded through the helical coil primary form in a quadrant measured generally perpendicular to the primary coil axis.
- 3. The vasoocclusive device of claim 1 wherein the material making up said plurality of fibrous elements is selected from silk, cotton, polyethylene terephthalate, polylactic acid, polyglycolic acid, polyesters, fluorocarbons, and polyaramids.
- 4. The vasoocclusive device of claim 3 wherein the fibrous elements are polyethylene terephthalate.
- 5. The vasooclusive device of claim 1 wherein the secondary coil form interior contains at least about 65% of the plurality of fibrous elements.
- 6. The vasooclusive device of claim 1 wherein the secondary coil form interior contains at least about 85% of the plurality of fibrous elements.
- 7. The vasoocclusive device of claim 1 wherein said plurality of fibrous elements comprises a multiplicity of fibrillar tufts extending radially from the primary coil axis.
- 8. The vasoocclusive device of claim 7 wherein the multiplicity of fibrillar tufts extending radially from the primary coil axis are inserted around said helical windings.
- 9. The vasoocclusive device of claim 8 wherein the multiplicity of fibrillar tufts extending radially from the primary coil axis are inserted around said helical windings in a quadrant measured generally perpendicular to the coil axis.
- 10. The vasoocclusive device of claim 1 wherein fibers are located along only a portion of the axis of the primary coil form and that portion of the primary coil form resides within said secondary coil form interior upon said self-forming.
RELATED APPLICATIONS
This is a continuation of U.S. Ser. No. 08/540,354 filed Sep. 29, 1995, now U.S. Pat. No. 5,700,258 to Mirigian et al., filed Sep. 29, 1995, which is a continuation-in-part of U.S. Ser. No. 08/265,188, now U.S. Pat. No. 5,549,624, issued Aug. 27, 1996, to Mirigian and Van, filed Jun. 24, 1994, the entirety of which is incorporated by reference.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4994069 |
Ritchart et al. |
Feb 1991 |
|
5700258 |
Mirigian et al. |
Dec 1997 |
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Foreign Referenced Citations (1)
Number |
Date |
Country |
WO 9410936 |
May 1994 |
WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
540354 |
Sep 1995 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
265188 |
Jun 1994 |
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