US5658308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bioactive occlusion coil
Assignee: Target Therapeutics Inc
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Filing: 1995-12-04
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Granted: 1997-08-19
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Expires: 2015-12-04
Abstract
Abstract A thrombogenic occlusion coil for occluding a blood vessel comprising a helical metallic coil having a plurality of axially spaced windings and a plurality of strands of a thrombogenic polymer extending axially through the central core of the coil, the ends of the strands being bound together.
Inventors
- 👤 Edward J. Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:49
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12131; A61B17/1214; A61B17/12145; A61B17/1215
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
An occlusion coil for occluding an opening within the human body comprising: a) an elongated helical coil of a biocompatible metal having a plurality of axial spaced windings; and b) a plurality of strands of a polymeric, bioactive, occlusion-causing material extending axially through the coil, each such strand having opposing ends, and wherein the ends of the strands are bound together.
Claim 2
Dependent Claim
61 words
An occlusion coil for occluding an opening within the human body comprising: a) an elongated helical coil of a biocompatible metal having a plurality of axial spaced windings; and b) a plurality of strands of a polymeric, bioactive, occlusion-causing material extending axially through the coil, each such strand having opposing ends, and wherein the ends of the strands are bound together.
Claim 3
Dependent Claim
12 words
The occlusion coil of claim 1 wherein the bioactive material is thrombogenic.
Claim 4
Dependent Claim
12 words
The occlusion coil of claim 1 wherein the bioactive material is fibrogenic.
Claim 5
Dependent Claim
15 words
The occlusion coil of claim 1 wherein the bioactive material comprises 25 to 500 strands.
Claim 6
Dependent Claim
15 words
The occlusion coil of claim 1 wherein the helical coil is a cylindrical helical coil.
Claim 7
Dependent Claim
18 words
The occlusion coil of claim 1 wherein said bioactive material is high density polyethylene, polyethylene terephthalate, or silk.
Claim 8
Dependent Claim
19 words
The occlusion coil of claim 1 further including (c) a plurality of radially extending fibers attached to said windings.
Claim 9
Dependent Claim
18 words
The occlusion coil of claim 1 wherein the length of the helical coil is 0.02 to 100 cm.
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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) | 2000-08-18 | 2001-02-17 | 2001-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-18 | 2005-02-17 | 2005-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-18 | 2009-02-17 | 2009-08-19 | $7700.00 | Window Closed / Lapsed |