Vasoocclusion coil with attached tubular woven or braided fibrous covering

• US 5,522,822 A
• Filed: 10/17/1994
• Issued: 06/04/1996
• Est. Priority Date: 10/26/1992
• Status: Expired due to Term

• Current Assignee: Target Therapeutics, Inc. (Boston Scientific Corporation)
• Original Assignee: Target Therapeutics, Inc. (Boston Scientific Corporation)
• Inventors: Phelps, James J., Van, Nga T.
• Primary Examiner(s): Graysay, Tamara L.
• Application Number:
  US08/323,951
• Time in Patent Office: 596 Days
• Field of Search: 606/108, 606/151, 606/191, 606/198, 606/194, 604/104, 604/105, 604/107, 623/1, 623/12
• US Class Current: 606/151
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12145 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/1215 comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2230/0076 ellipsoidal or ovoid
• CPC Class Codes: A61F 2230/0091 helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section
• CPC Class Codes: D04C 1/06 Braid or lace serving particular purposes

Abstract

This invention is in the field of vasoocclusion devices. More particularly, it relates to a vasoocclusion coil which may be segmented, onto which a fibrous, woven or braided, tubular covering or element is attached.

Claims

1. A vasoocclusive device adapted, sized, and configured for introduction into a vascular lumen consisting essentially of:

a. a helical coil having a multiplicity of windings and having a first end and a second end, a passageway between the first end and second end, and

b. at least one fibrous woven tubular member extending coaxially about at least a portion of the helical coil and adhering to the helical coil at least one location on the coil

where the device is of a diameter which may be introduced through the lumen of a vascular catheter and of a diameter which is smaller than the diameter of the vascular lumen.

2. The device of claim 1 in which the helical coil is segmented.

3. The device of claim 2 in which the fibrous woven tubular member is braided.

4. The device of claim 3 in which the fibrous woven tubular member has an inside and an outside and wherein the device additionally comprises tassels extending beyond the outside of said tubular member.

5. The device of claim 1 in which the helical coil is continuous.

6. The device of claim 1 in which the fibrous at least one woven tubular member is braided.

7. The device of claim 6 in which the fibrous at least woven tubular member has an inside and an outside and wherein the device additionally comprises tassels extending beyond the outside of said tubular member.

8. The device of claim 6 where the helical coil assumes a random configuration when utilized.

9. The device of claim 6 when the helical coil assumes a cloverleaf configuration where relaxed.

10. The device at claim 6 where the helical coil assumes a regular coiled configuration where relaxed.

11. The device of claim 6 where the helical coil assumes a coiled shape having two secondary diameters where relaxed.

12. The device of claim 1 including multiple fibrous woven tubular members.

13. The device of claim 12 where the tubular members have a first end and a second end.

14. The device of claim 13 where the tubular member first ends are attached to the helical coil.

15. The device of claim 14 where the tubular member second ends are also attached to the helical coil.

16. The device of claim 15 where the tubular members are axially compressed on the axis between their first and second ends and bulge from the coil.

17. The device of claim 1 where the helical coil has a diameter of 0.008 to 0.018 inches.