US5927345A
Expired / Lapsed
US
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Super-elastic alloy braid structure
Assignee: Target Therapeutics Inc
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Filing: 1996-04-30
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Granted: 1999-07-27
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Expires: 2016-04-30
Abstract
Abstract This is a braided tubular structure made up of a plurality of interwoven fibrous members, preferably ribbons, a majority of which comprise one or more superelastic and (at least) ternary alloys of nickel, titanium, and at least about 1.5% (wt) of one or more alloying members selected from the group consisting of vanadium, chromium, manganese, iron, and cobalt.
Inventors
- 👤 Gene Samson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:29
CPC Classifications
A; A61; A61M; A61M25/00; F; F16; F16L; F16L11/00; F16L11/14; A61M39/00; A61M39/08; D; D03; D03D; D03D3/00; D03D3/02; A61L; A61L2400/00; A61L2400/16; A61M25/0009; A61M25/0012
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
90 words
A tubular structure comprising a plurality of constituent filaments: wherein said plurality of constituent filaments are interwoven into a braid forming an inner passageway, wherein at least some of said constituent filaments are superelastic alloy constituent filaments, wherein said superelastic alloy constituent filaments have a cross section with a maximum dimension no greater than about 12.0 mils, and wherein said superelastic alloy comprises a nickel titanium alloy containing at least about 1.5%(wt) of at least one alloying element selected from the group consisting of vanadium, chromium, manganese, iron, and cobalt.
Claim 2
Dependent Claim
90 words
A tubular structure comprising a plurality of constituent filaments: wherein said plurality of constituent filaments are interwoven into a braid forming an inner passageway, wherein at least some of said constituent filaments are superelastic alloy constituent filaments, wherein said superelastic alloy constituent filaments have a cross section with a maximum dimension no greater than about 12.0 mils, and wherein said superelastic alloy comprises a nickel titanium alloy containing at least about 1.5%(wt) of at least one alloying element selected from the group consisting of vanadium, chromium, manganese, iron, and cobalt.
Claim 3
Dependent Claim
20 words
The tubular structure of claim 1 wherein the constituent filaments have cross-sections selected from rectangular, circular, oval, square, and triangular.
Claim 4
Dependent Claim
16 words
The tubular structure of claim 1 wherein the constituent filaments comprise ribbons having a rectangular cross-section.
Claim 5
Dependent Claim
30 words
The tubular structure of claim 3 wherein the ribbon rectangular cross section have a major axis between 2.5 and 12.0 mils and a minor axis between 0.25 and 3.0 mils.
Claim 6
Dependent Claim
23 words
The tubular structure of claim 1 wherein the tubular structure has been heat-treated after braiding to impart a consistent diameter to said structure.
Claim 7
Dependent Claim
35 words
The tubular structure of claim 1 wherein a minority of said constituent filaments comprises conductor filaments interwoven into said braid, said conductor filaments having a specific resistance of less than about 100 ohms per foot.
Claim 8
Dependent Claim
45 words
The tubular structure of claim 1 wherein a minority of said constituent filaments comprises radio-opaque filaments interwoven into said braid, said radio-opaque filaments comprising at least one member selected from the group consisting of platinum, palladium, rhodium, rhenium, ruthenium, gold, tungsten, their mixtures and alloys.
Claim 9
Dependent Claim
20 words
The tubular structure of claim 1 wherein a minority of said constituent filaments comprises polymeric filaments interwoven into said braid.
Claim 10
Dependent Claim
18 words
The tubular structure of claim 1 wherein the tubular structure is interwoven using a single member braid structure.
Claim 11
Dependent Claim
18 words
The tubular structure of claim 1 wherein the tubular structure is interwoven using a multiple member braid structure.
Claim 12
Dependent Claim
22 words
The tubular structure of claim 1 wherein the tubular structure has a cross section selected from circular, oval, triangular, rectangular, and square.
Claim 13
Dependent Claim
26 words
The tubular structure of claim 1 wherein at least a portion of the filaments have a cross section selected from circular, oval, triangular, rectangular, and square.
Claim 14
Dependent Claim
22 words
The tubular structure of claim 1 wherein said at least one alloying element selected from the group consisting of chromium and iron.
Claim 15
Dependent Claim
15 words
The tubular structure of claim 1 wherein said at least one alloying element is chromium.
Claim 16
Dependent Claim
100 words
A tubular structure comprising a plurality of constituent ribbons: wherein said plurality of constituent ribbons are interwoven into a braid forming an inner passageway, wherein at least some of said constituent ribbons are superelastic alloy constituent rectangular cross-section ribbons, wherein said superelastic alloy constituent ribbons having a cross section having a major axis between 2.5 and 12.0 mils and a minor axis between 0.25 and 3.0 mils, and wherein said superelastic alloy comprises a nickel-titanium alloy containing at least about 1.5% (wt) of at least one alloying element selected from the group consisting of vanadium, chromium, manganese, iron, and cobalt.
Claim 17
Dependent Claim
100 words
A tubular structure comprising a plurality of constituent ribbons: wherein said plurality of constituent ribbons are interwoven into a braid forming an inner passageway, wherein at least some of said constituent ribbons are superelastic alloy constituent rectangular cross-section ribbons, wherein said superelastic alloy constituent ribbons having a cross section having a major axis between 2.5 and 12.0 mils and a minor axis between 0.25 and 3.0 mils, and wherein said superelastic alloy comprises a nickel-titanium alloy containing at least about 1.5% (wt) of at least one alloying element selected from the group consisting of vanadium, chromium, manganese, iron, and cobalt.
Claim 18
Dependent Claim
23 words
The tubular structure of claim 15 wherein the tubular structure has been heat-treated after braiding to impart a consistent diameter to said structure.
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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) | 2002-07-26 | 2003-01-25 | 2003-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-07-26 | 2007-01-25 | 2007-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-07-26 | 2011-01-25 | 2011-07-27 | $7700.00 | Window Closed / Lapsed |