US5649949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable cross-section conical vasoocclusive coils
Assignee: Target Therapeutics Inc
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Filing: 1996-03-28
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Granted: 1997-07-22
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Expires: 2016-03-28
Abstract
Abstract This is an implantable vasoocclusive device. It is constructed of a primary helically wound coil, which primary coil is further wound into secondary shapes which are at least partially substantially conical. Other portions of the secondary shape may have sections of constant diameter or of other conical shapes. The primary coil may be made in such a way that it has regions of differing flexibility. Fibrous materials may be placed on the coils in tufted, streamer, or woven configurations so to increase the thrombogenicity of the overall assembled device.
Inventors
- 👤 Michael P. Wallace
- 👤 Francisco S. Villar
- 👤 Christopher G. M. Ken
- 👤 David A. Gyorke
- 👤 Timothy S. Winkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:23
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12131; A61B17/1214; A61B17/1215; A61B17/12099; A61B17/12109; A61B17/12145
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
125 words
A vasoocclusive device comprising: an elongated wire helically wound into a tubular member having a first end, a second end, an axis extending between said first and second ends, and wherein the helically wound tubular member has a first configuration conforming to a lumen within a constraining tubular member when constrained within that constraining tubular member, and wherein the helically wound tubular member has a second self-forming secondary configuration, different from the first configuration, when not constrained by the constraining tubular member, and wherein the helically wound tubular member has at least one region of flexibility which is more highly flexible than at least one region adjacent said at least one region of higher flexibility, and wherein the secondary configuration is generally conical in shape.
Claim 2
Dependent Claim
125 words
A vasoocclusive device comprising: an elongated wire helically wound into a tubular member having a first end, a second end, an axis extending between said first and second ends, and wherein the helically wound tubular member has a first configuration conforming to a lumen within a constraining tubular member when constrained within that constraining tubular member, and wherein the helically wound tubular member has a second self-forming secondary configuration, different from the first configuration, when not constrained by the constraining tubular member, and wherein the helically wound tubular member has at least one region of flexibility which is more highly flexible than at least one region adjacent said at least one region of higher flexibility, and wherein the secondary configuration is generally conical in shape.
Claim 3
Dependent Claim
35 words
The vasoocclusive device of claim 1 wherein the elongated wire in the at least one region of higher flexibility is more flexible than is the wire in another region of the helically wound tubular member.
Claim 4
Dependent Claim
31 words
The vasoocclusive device of claim 1 wherein the diameter of the helically wound tubular member in the region of higher flexibility is smaller than another region of helically wound tubular member.
Claim 5
Dependent Claim
34 words
The vasoocclusive device of claim 1 wherein the at least one region of higher flexibility has a helical pitch spacing rendering the region more flexible than another region in said helically wound tubular member.
Claim 6
Dependent Claim
17 words
The vasoocclusive device of claim 1 additionally comprising filamentary material attached to said helically wound tubular member.
Claim 7
Dependent Claim
23 words
The vasoocclusive device of claim 1 additionally comprising a deployment tip attached to at least one of the first end and second end.
Claim 8
Dependent Claim
24 words
The vasoocclusive device of claim 6 wherein the deployment tip comprises a mechanically detachable end adapted to attach to and detach from a pusher.
Claim 9
Dependent Claim
30 words
The vasoocclusive device of claim 6 wherein the deployment tip comprises an electrolytically detachable end adapted to detach from a pusher by imposition of an electrical current on said pusher.
Claim 10
Dependent Claim
21 words
The vasoocclusive device of claim 1 additionally comprising a cap on at least one of the first end and second end.
Claim 11
Dependent Claim
118 words
A vasoocclusive device comprising an elongated wire helically wound onto a tubular member having a first end, a second end, a primary axis extending between said first end and second end, wherein the helically wound tubular member has a configuration conforming to a constraining tubular member when constrained within said constraining tubular member, and wherein the helically wound tubular member has a second self-forming secondary configuration, different from the first configuration, when not constrained by the constraining tubular member, and wherein the secondary configuration has an axis and a generally conical shape when viewed perpendicular to that axis and wherein said conical shape comprises a series of connected generally straight regions when viewed in line with said axis.
Claim 12
Dependent Claim
118 words
A vasoocclusive device comprising an elongated wire helically wound onto a tubular member having a first end, a second end, a primary axis extending between said first end and second end, wherein the helically wound tubular member has a configuration conforming to a constraining tubular member when constrained within said constraining tubular member, and wherein the helically wound tubular member has a second self-forming secondary configuration, different from the first configuration, when not constrained by the constraining tubular member, and wherein the secondary configuration has an axis and a generally conical shape when viewed perpendicular to that axis and wherein said conical shape comprises a series of connected generally straight regions when viewed in line with said axis.
Claim 13
Dependent Claim
38 words
The vasoocclusive device of claim 10 wherein the helically wound tubular member has at least one region of flexibility which is more highly flexible than at least one region adjacent said at least one region of higher flexibility.
Claim 14
Dependent Claim
35 words
The vasoocclusive device of claim 11 wherein the elongated wire in the at least one region of higher flexibility is more flexible than is the wire in another region of the helically wound tubular member.
Claim 15
Dependent Claim
31 words
The vasoocclusive device of claim 11 wherein the diameter of the helically wound tubular member in the region of higher flexibility is smaller than another region of helically wound tubular member.
Claim 16
Dependent Claim
33 words
The vasoocclusive device of claim 11 wherein the at least one region of higher flexibility has a helical pitch spacing rendering it yet flexible than another region in said helically wound tubular member.
Claim 17
Dependent Claim
17 words
The vasoocclusive device of claim 10 additionally comprising filamentary material attached to said helically wound tubular member.
Claim 18
Dependent Claim
23 words
The vasoocclusive device of claim 10 additionally comprising a deployment tip attached to at least one of the first end and second end.
Claim 19
Dependent Claim
24 words
The vasoocclusive device of claim 16 wherein the deployment tip comprises a mechanically detachable end adapted to attach to and detach from a pusher.
Claim 20
Dependent Claim
30 words
The vasoocclusive device of claim 16 wherein the deployment tip comprises an electrolytically detachable end adapted to detach from a pusher by imposition of an electrical current on said pusher.
Claim 21
Dependent Claim
21 words
The vasoocclusive device of claim 10 additionally comprising a cap on at least one of the first end and second end.
Claim 22
Dependent Claim
97 words
A vasoocclusive device comprising an elongated wire helically wound onto a tubular member having a first end, a second end, a primary axis extending between said first end and second end, wherein the helically wound tubular member has a configuration conforming to a constraining tubular member when constrained within said constraining tubular member, and wherein the helically wound tubular member has a second self-forming secondary configuration, different from the first configuration, when not constrained by the constraining tubular member, and wherein said secondary configuration comprises a first conical section having an axis and a second filler section.
Claim 23
Dependent Claim
97 words
A vasoocclusive device comprising an elongated wire helically wound onto a tubular member having a first end, a second end, a primary axis extending between said first end and second end, wherein the helically wound tubular member has a configuration conforming to a constraining tubular member when constrained within said constraining tubular member, and wherein the helically wound tubular member has a second self-forming secondary configuration, different from the first configuration, when not constrained by the constraining tubular member, and wherein said secondary configuration comprises a first conical section having an axis and a second filler section.
Claim 24
Dependent Claim
30 words
The vasoocclusive device of claim 20 wherein the filler section is generally cylindrical and has an axis, which axis is generally parallel to the axis of the first conical section.
Claim 25
Dependent Claim
26 words
The vasoocclusive device of claim 20 wherein the filler section comprises a cylinder having an axis generally perpendicular to the axis of the first conical section.
Claim 26
Dependent Claim
21 words
The vasoocclusive device of claim 20 wherein the first conical section is approximately elliptical in form when viewed along said axis.
Claim 27
Dependent Claim
17 words
The vasoocclusive device of claim 20 additionally comprising filamentary material attached to said helically wound tubular member.
Claim 28
Dependent Claim
23 words
The vasoocclusive device of claim 20 additionally comprising a deployment tip attached to at least one of the first end and second end.
Claim 29
Dependent Claim
24 words
The vasoocclusive device of claim 25 wherein the deployment tip comprises a mechanically detachable end adapted to attach to and detach from a pusher.
Claim 30
Dependent Claim
29 words
The vasoocclusive device of claim 25 wherein the deployment tip comprises an electrolytically detachable end adapted to detach from a pusher by imposition of a current on said pusher.
Claim 31
Dependent Claim
21 words
The vasoocclusive device of claim 20 additionally comprising a cap on at least one of the first end and second end.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-07-21 | 2001-01-20 | 2001-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-21 | 2005-01-20 | 2005-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-21 | 2009-01-20 | 2009-07-22 | $7700.00 | Window Closed / Lapsed |