Patent US6168570B1 successfully refreshed from Google Patents.
US6168570B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micro-strand cable with enhanced radiopacity
Assignee: Micrus Endovascular LLC
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Filing: 1999-02-05
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Granted: 2001-01-02
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Expires: 2019-02-05
Abstract
Abstract This invention relates generally to emplacable devices for interventional therapeutic treatment or vascular surgery, and more particularly concerns a stranded micro-cable with enhanced radiopacity that can be used to fabricate a vascular device, a stent, a guidewire or the like. The micro-cable is made of strands of a material exhibiting super-elasticity or shape memory properties, such as nickel-titanium, and includes a strand of radiopaque material, such as platinum or gold, in order to provide a radiopaque marker during interventional therapeutic treatment or vascular surgery. The micro-cable can be used to form occluding coils which can be used in devices to restrict, reinforce, or to occlude areas of small diameter vasculature such as an aneurysm or malformation in an artery or vein in the brain.
Inventors
- 👤 David A. Ferrera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:46
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12109; A61B17/12113; A61B17/12131; A61B17/1214; A61B17/12145; A61B17/1215; A61B17/12181; A61B17/1219; A61B2017/00831; A61B2017/00867; A61B2017/1205; A61B2017/12054; A61B2017/12068; A61B2017/12072; A61B90/00; A61B90/39; A61M; A61M25/00; A61M25/01; A61M25/09; A61M2025/09191
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
79 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, and wherein at least one of said strands comprises a shape memory material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 2
Dependent Claim
79 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, and wherein at least one of said strands comprises a shape memory material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 3
Dependent Claim
16 words
The multi-stranded micro-cable of claim 1 wherein said shape memory material comprises a nickel titanium alloy.
Claim 4
Dependent Claim
16 words
The multi-stranded micro-cable of claim 1 wherein said shape memory material further comprises a nickel-titanium alloy.
Claim 5
Dependent Claim
17 words
The multi-stranded micro-cable of claim 1 wherein said shape memory material further comprises a shape memory polymer.
Claim 6
Dependent Claim
31 words
The multi-stranded micro-cable of claim 1 , wherein a plurality of flexible strands are twisted about a longitudinal axis, at least one of said twisted strands being of a radiopaque material.
Claim 7
Dependent Claim
77 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, wherein at least one of said strands comprises a super-elastic material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 8
Dependent Claim
77 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, wherein at least one of said strands comprises a super-elastic material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 9
Dependent Claim
15 words
The multi-stranded micro-cable of claim 6 wherein said super-elastic material comprises a nickel titanium alloy.
Claim 10
Dependent Claim
74 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material; a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis; and an outer flexible sheath of low friction material.
Claim 11
Dependent Claim
74 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material; a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis; and an outer flexible sheath of low friction material.
Claim 12
Dependent Claim
13 words
The multi-stranded micro-cable of claim 8 wherein said outer sheath comprises a fluoropolymer.
Claim 13
Dependent Claim
83 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, wherein said plurality of flexible twisted strands of a resilient material are comprised of a super-elastic material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 14
Dependent Claim
83 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, wherein said plurality of flexible twisted strands of a resilient material are comprised of a super-elastic material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 15
Dependent Claim
83 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, wherein said plurality of flexible strands of a resilient material are comprised of a shape memory material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 16
Dependent Claim
83 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, wherein said plurality of flexible strands of a resilient material are comprised of a shape memory material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 17
Dependent Claim
75 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, and wherein said radiopaque strand comprises a platinum strand; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 18
Dependent Claim
75 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, and wherein said radiopaque strand comprises a platinum strand; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 19
Dependent Claim
75 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, and wherein said radiopaque strand comprises a gold strand; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 20
Dependent Claim
75 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, and wherein said radiopaque strand comprises a gold strand; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 21
Dependent Claim
75 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, and wherein said radiopaque strand comprises a tungsten strand; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 22
Dependent Claim
75 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material, and wherein said radiopaque strand comprises a tungsten strand; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 23
Dependent Claim
65 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, a plurality of said flexible twisted strands being of radiopaque material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 24
Dependent Claim
65 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, a plurality of said flexible twisted strands being of radiopaque material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 25
Dependent Claim
74 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material; at least one strand of a therapeutic material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 26
Dependent Claim
74 words
A multi-stranded micro-cable for use in interventional therapy and vascular surgery comprising: a plurality of flexible twisted strands of a resilient material longitudinally arranged in said cable, at least one of said flexible twisted strands being of radiopaque material; at least one strand of a therapeutic material; and a sheath formed of a containment strand wound about said plurality of flexible twisted strands to constrain said strands of said micro-cable about a longitudinal axis.
Claim 27
Dependent Claim
14 words
The multi-stranded micro-cable of claim 16 wherein said strand of therapeutic material comprises hydrogel.
Claim 28
Dependent Claim
16 words
The multi-stranded micro-cable of claim 16 wherein said strand of therapeutic material comprises human growth hormone.
Claim 29
Dependent Claim
81 words
A composite wire for use in interventional therapy or vascular surgery, comprising: a plurality of longitudinal structural strands, each of said strands being made of a resilient shape memory material; at least one longitudinal radiopaque strand extending over a portion of the composite wire; at least one longitudinal sensing element for sensing a parameter, wherein said sensing element comprises an optical fiber; and an outer sheath of material to provide bending stiffness and constrain said longitudinal strands about said longitudinal axis.
Claim 30
Dependent Claim
81 words
A composite wire for use in interventional therapy or vascular surgery, comprising: a plurality of longitudinal structural strands, each of said strands being made of a resilient shape memory material; at least one longitudinal radiopaque strand extending over a portion of the composite wire; at least one longitudinal sensing element for sensing a parameter, wherein said sensing element comprises an optical fiber; and an outer sheath of material to provide bending stiffness and constrain said longitudinal strands about said longitudinal axis.
Claim 31
Dependent Claim
99 words
A composite wire for use in interventional therapy or vascular surgery, comprising; a plurality of longitudinal structural strands, each of said strands being made of a resilient shape memory material; at least one longitudinal radiopaque strand extending over a portion of the composite wire; at least one longitudinal therapeutic element comprising means to conduct energy for providing a therapeutic effect at a location near the distal end of said wire, wherein said means to conduct energy comprises an optical fiber; and an outer sheath of material to provide bending stiffness and constrain said longitudinal strands about said longitudinal axis.
Claim 32
Dependent Claim
99 words
A composite wire for use in interventional therapy or vascular surgery, comprising; a plurality of longitudinal structural strands, each of said strands being made of a resilient shape memory material; at least one longitudinal radiopaque strand extending over a portion of the composite wire; at least one longitudinal therapeutic element comprising means to conduct energy for providing a therapeutic effect at a location near the distal end of said wire, wherein said means to conduct energy comprises an optical fiber; and an outer sheath of material to provide bending stiffness and constrain said longitudinal strands about said longitudinal axis.
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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) | 2004-01-02 | 2004-07-03 | 2005-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-02 | 2008-07-03 | 2009-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-02 | 2012-07-03 | 2013-01-02 | $7700.00 | Window Closed / Lapsed |