US6440148B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stent unclogging system with stepped spiral
Assignee: Individual
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Filing: 2000-08-21
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Granted: 2002-08-27
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Expires: 2020-08-21
Abstract
Abstract An atherectomy system for removing obstructive material from within a patient's vessel comprising a flexible spiral wire having a distal stepped-down section that is connected through a short transition section with a nominal diameter section, a flexible catheter that is slideable and rotateable over the spiral wire and rotating means coupled to the catheter.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:37
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/22; A61B17/22004; A61B17/22012; A61B17/320758; A61B17/320783; A61B18/00; A61B18/04; A61B18/08; A61B18/082; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B18/245; A61B8/00; A61B8/12; F; F16; F16C; F16C1/00; F16C1/02; F16D; F16D7/00; F16D7/02; A61B2017/00535; A61B2017/00539; A61B2017/00681; A61B2017/00685; A61B2017/00831; A61B2017/0084; A61B2017/00845; A61B2017/22001; A61B2017/22002; A61B2017/22038; A61B2017/22051; A61B2017/22052; A61B2017/22082; A61B17/320068; A61B2017/320084; A61B90/00; A61B90/03; A61B2090/031; A61B90/36; A61B90/361; A61B2090/3614; A61B90/37; A61B2090/373; A61B2090/378; A61B2090/3782; A61B2090/3784; A61B90/39; A61B2090/3933; A61B2217/00; A61B2217/002; A61B2217/005; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/75; A61M25/00; A61M25/01; A61M25/09; F16C2202/00; F16C2202/20; F16C2202/28; F16C2316/00; F16C2316/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A method for unclogging a stent that is located in a patient's vessel, with a catheter system that has a flexible spiral wire having a distal stepped-down section, and a flexible catheter that is slideable and rotateable over the spiral wire, said catheter having a tubular blade at its distal end and rotating means coupled to the catheter, said method comprising the following steps; threading a guidewire through the vessel and advancing it to the vicinity of the stent, threading said distal stepped-down section into an obstructive material that is clogging the stent, passing a tubular blade over the flexible spiral wire and the obstructive material thereby separating the obstructive material from the stent, and withdrawing the spiral wire and the tubular blade with the obstructive material out of the stent.
Claim 2
Independent Claim
131 words
A method for unclogging a stent that is located in a patient's vessel, with a catheter system that has a flexible spiral wire having a distal stepped-down section, and a flexible catheter that is slideable and rotateable over the spiral wire, said catheter having a tubular blade at its distal end and rotating means coupled to the catheter, said method comprising the following steps; threading a guidewire through the vessel and advancing it to the vicinity of the stent, threading said distal stepped-down section into an obstructive material that is clogging the stent, passing a tubular blade over the flexible spiral wire and the obstructive material thereby separating the obstructive material from the stent, and withdrawing the spiral wire and the tubular blade with the obstructive material out of the stent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-08-26 | 2006-02-25 | 2006-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-26 | 2010-02-25 | 2010-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-26 | 2014-02-25 | 2014-08-27 | $7700.00 | Window Closed / Lapsed |