US6790218B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Occlusive coil manufacture and delivery
Assignee: Individual
•
Filing: 2000-12-20
•
Granted: 2004-09-14
•
Expires: 2020-12-20
Abstract
Abstract The present invention includes a coiled wire formed of a shape memory material for implantation into an anatomical defect. After implantation of one or more of the coiled wires according to the present invention, the defect is occluded and thereby corrected or treated. Prior to implantation, the coiled wire is generally elongated and thereafter it reverts to a predetermined shape that is suitable for occluding the defect. At least one clip having at least two prongs may be provided on the wire for attachment to body tissue. Preferably the wire is made of nickel-titanium. In an alternative embodiment, the coil includes a plurality of layers. At least one of these layers is formed of a shape memory material.
Inventors
- 👤 Swaminathan Jayaraman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/0057; A61B17/12099; A61B17/12109; A61B17/12113; A61B17/12131; A61B17/1214; A61B17/12145; A61B17/1215; A61B17/12168; A61B17/12172; A61B17/12177; A61B2017/00575; A61B2017/00592; A61B2017/00606; A61B2017/00623; A61B2017/00831; A61B2017/00867; A61B2017/1205; A61B2017/12054; A61B2017/12095
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
114 words
A device for occluding an anatomical defect, comprising a wire member formed of a shape memory alloy, the member having a free bottom end and a free top end, a first predetermined unexpanded shape, and a second predetermined expanded shape, wherein the unexpanded shape is substantially linear and the expanded shape is substantially conical, the expanded shape having a plurality of loops coaxially disposed about a longitudinal axis, the loops progressively decreasing in diameter from one end of the device to the other, wherein at least one of the ends of the member includes a clip having a non-overlapping planer fan-like configuration with at least two prongs for contacting areas adjacent the anatomical defect.
Claim 2
Independent Claim
114 words
A device for occluding an anatomical defect, comprising a wire member formed of a shape memory alloy, the member having a free bottom end and a free top end, a first predetermined unexpanded shape, and a second predetermined expanded shape, wherein the unexpanded shape is substantially linear and the expanded shape is substantially conical, the expanded shape having a plurality of loops coaxially disposed about a longitudinal axis, the loops progressively decreasing in diameter from one end of the device to the other, wherein at least one of the ends of the member includes a clip having a non-overlapping planer fan-like configuration with at least two prongs for contacting areas adjacent the anatomical defect.
Claim 3
Dependent Claim
18 words
The device of claim 1 , wherein the loops form a substantially conical coil having a constant pitch.
Claim 4
Dependent Claim
18 words
The device of claim 1 , wherein the loops form a substantially conical coil having a variable pitch.
Claim 5
Dependent Claim
15 words
The device of claim 1 , wherein the shape memory alloy is a nickel-titanium alloy.
Claim 6
Dependent Claim
14 words
The device of claim 1 , wherein the member is substantially arcuate in cross-section.
Claim 7
Dependent Claim
25 words
The device of claim 1 , wherein at least one of the prongs has a sharp portion for attaching to an area adjacent the defect.
Claim 8
Dependent Claim
20 words
The device of claim 6 , wherein the diameter of the plurality of loops is smaller than about 1.5 cm.
Claim 9
Dependent Claim
17 words
The device of claim 7 , wherein the shape memory alloy displays a one-way shape memory effect.
Claim 10
Dependent Claim
17 words
The device of claim 8 , wherein the shape memory alloy displays a two-way shape memory effect.
Claim 11
Dependent Claim
30 words
The device of claim 8 , wherein the shape memory alloy has an austenite finish temperature below body temperature, thereby permitting the device to have superelastic properties at body temperature.
Claim 12
Dependent Claim
18 words
The device of claim 8 , wherein the shape memory alloy displays a superelastic effect at body temperature.
Claim 13
Dependent Claim
17 words
A device of claim 1 , wherein the shape memory alloy member includes a plurality of layers.
Claim 14
Dependent Claim
22 words
The device of claim 12 , wherein the plurality of layers includes at least one layer formed of a passive memory material.
Claim 15
Dependent Claim
21 words
The device of claim 12 , wherein the plurality of layers includes at least two layers formed of active memory materials.
Claim 16
Dependent Claim
38 words
The device of claim 14 , wherein at least one of the layers is a wire formed of a shape memory material, and at least one of the layers is a braid Conned of a shape memory material.
Claim 17
Dependent Claim
25 words
The device of claim 12 , wherein the plurality of layers includes at least two layers braided together or one layer surrounded by a braid.
Claim 18
Dependent Claim
30 words
The device of claim 1 further comprising at least one crooked section, a substantially conical section, and a substantially cylindrical section disposed between the crooked section and the conical section.
Claim 19
Dependent Claim
88 words
A wireform for occluding an anatomical defect comprising a free bottom end, a free top end, a first predetermined unexpanded configuration, and a second predetermined expanded configuration, wherein the unexpanded configuration is substantially linear, the expanded configuration is substantially conical and includes a plurality of loops progressively decreasing in diameter between the ends of the wireform, the wireform comprises a shape memory material, and at least one of the ends includes a non-overlapping planer fan-like configuration having at least two prongs for contacting areas adjacent the anatomical defect.
Claim 20
Dependent Claim
88 words
A wireform for occluding an anatomical defect comprising a free bottom end, a free top end, a first predetermined unexpanded configuration, and a second predetermined expanded configuration, wherein the unexpanded configuration is substantially linear, the expanded configuration is substantially conical and includes a plurality of loops progressively decreasing in diameter between the ends of the wireform, the wireform comprises a shape memory material, and at least one of the ends includes a non-overlapping planer fan-like configuration having at least two prongs for contacting areas adjacent the anatomical defect.
Claim 21
Dependent Claim
16 words
The wireform of claim 18 , wherein the shape memory material comprises a shape memory alloy.
Claim 22
Dependent Claim
96 words
A wireform for occluding an anatomical defect comprising: a free bottom end, a free top end, a first predetermined unexpanded configuration, and a second predetermined expanded configuration; wherein the wireform comprises a shape memory material; the unexpanded configuration is substantially linear; the expanded configuration includes at least one crooked section, a substantially conical section, and a substantially cylindrical section disposed between the crooked section and the conical section; and at least one of the ends includes a non-overlapping planer fan-like configuration having at least two prongs integrally formed therewith for contacting areas adjacent the anatomical defect.
Claim 23
Dependent Claim
96 words
A wireform for occluding an anatomical defect comprising: a free bottom end, a free top end, a first predetermined unexpanded configuration, and a second predetermined expanded configuration; wherein the wireform comprises a shape memory material; the unexpanded configuration is substantially linear; the expanded configuration includes at least one crooked section, a substantially conical section, and a substantially cylindrical section disposed between the crooked section and the conical section; and at least one of the ends includes a non-overlapping planer fan-like configuration having at least two prongs integrally formed therewith for contacting areas adjacent the anatomical defect.
Claim 24
Dependent Claim
15 words
The wireform according to claim 20 , wherein the wireform is substantially arcuate in cross-section.
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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) | 2007-09-14 | 2008-03-15 | 2008-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-09-14 | 2012-03-15 | 2012-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-09-14 | 2016-03-15 | 2016-09-14 | $7700.00 | Window Closed / Lapsed |