US5226911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vasoocclusion coil with attached fibrous element(s)
Assignee: Target Therapeutics Inc
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Filing: 1991-10-02
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Granted: 1993-07-13
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Expires: 2011-10-02
Abstract
Abstract A device for occluding a blood vessel comprising a helical metal coil having at least one fibrous element attached to its proximal end wherein the fibrous element(s) extends in a sinusoidal wave configuration, the loops of which extend about individual windings at spaced intervals along the axis of the coil.
Inventors
- 👤 U. Hiram Chee
- 👤 Mike Mariant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12131; A61B17/1214; A61B17/1215; A61B17/12145; A61B2017/00004; A61B90/00; A61B90/39; A61F; A61F2/00; A61F2/01; A61F2002/016; A61F2230/00; A61F2230/0063; A61F2230/0091
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
89 words
A vasoocclusive device comprising: (a) a helical coil for occluding blood flow having a multiplicity of windings extending between a first end and a second end; (b) at least one fibrous element having a first end and a second end, with the portion of the element intermediate said ends extending axially along the coil in a generally serpentine configuration composed of a plurality of loops having maxima that extend radially outwardly and minima that extend radially inwardly and are threaded about individual windings at spaced intervals along the coil.
Claim 2
Dependent Claim
89 words
A vasoocclusive device comprising: (a) a helical coil for occluding blood flow having a multiplicity of windings extending between a first end and a second end; (b) at least one fibrous element having a first end and a second end, with the portion of the element intermediate said ends extending axially along the coil in a generally serpentine configuration composed of a plurality of loops having maxima that extend radially outwardly and minima that extend radially inwardly and are threaded about individual windings at spaced intervals along the coil.
Claim 3
Dependent Claim
32 words
The device of claim 1 wherein the helical coil is from 2 to 100 cm in length, 0.015 to 0.1 cm in diameter and has about 10 to 70 windings per cm.
Claim 4
Dependent Claim
32 words
The device of claim 2 wherein the fibrous element is attached to the proximal end of the helical coil and extends over about 10% to 90% of the length of the coil.
Claim 5
Dependent Claim
13 words
The device of claim 1 wherein there are a multiplicity of fibrous elements.
Claim 6
Dependent Claim
13 words
The device of claim 1 wherein there are 1 to 4 fibrous elements.
Claim 7
Dependent Claim
15 words
The device of claim 1 wherein the fibrous element is a bundle of individual fibers.
Claim 8
Dependent Claim
12 words
The device of claim 1 wherein the fibrous element is a monofilament.
Claim 9
Dependent Claim
17 words
The device of claim 1 wherein the length of an individual loop is 0.1 to 2 cm.
Claim 10
Dependent Claim
17 words
The device of claim 1 wherein said spaced interval is about 0.05 to 1 cm in length.
Claim 11
Dependent Claim
17 words
The device of claim 8 wherein said spaced interval is about 0.05 to 1 cm in length.
Claim 12
Dependent Claim
66 words
The device of claim 10 wherein the fibrous element is a bundle of about 5 to 100 individual fibers, there are 1 to 4 fibrous elements, the length of the helica1 coil is 2 to 100 cm, the fibrous elements are affixed to the proximal end of the helical coil, and the fibrous elements extend over about 25% to 50% of the length of the coil.
Claim 13
Dependent Claim
41 words
The device of claim 1 wherein the first end of the fibrous element is attached to one of said windings in the region of the first end of the coil and the second end is attached to another of said windings.
Claim 14
Dependent Claim
41 words
The device of claim 11 wherein the first end of the fibrous element is attached to one of said windings in the region of the first end of the coil and the second end is attached to another of said windings.
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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) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |