US6485501B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vascular filter system with guidewire and capture mechanism
Assignee: Cordis US Corp
•
Filing: 2000-08-11
•
Granted: 2002-11-26
•
Expires: 2020-08-11
Abstract
Abstract A removable vascular filter system for blocking micro- and macro-emboli while allowing the continued perfusion of blood comprises a filter membrane positioned on a guidewire, wherein a free end of the membrane sits tightly against the guidewire when the filter membrane is in a collapsed state and wherein the filter has a device for deploying the filter membrane to assume a position substantially normal to the longitudinal axis of the guidewire. The filter membrane is comprised of a fine mesh material which has a pore size capable of blocking emboli while allowing continued blood flow, a preferred embodiment of which comprises regularly spaced, laser-formed holes, and in which the membrane has a scalloped proximal profile. A capture mechanism is similarly described.
Inventors
- 👤 Nicholas A. Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/01; A61F2/013; A61F2/011; A61F2002/018; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0028; A61F2230/005; A61F2230/0063; A61F2230/0067; A61F2230/0073; A61F2230/008; A61F2230/0093
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
63 words
A catheter having a catheter shaft, and said catheter containing a distal protection device attached to a core wire, said core wire fixed within and with respect to the center of said catheter shaft, and said distal protection device comprising a filter mechanism capable of capturing percutaneous thrombus, and said filter mechanism expansible from a closed first diameter to a protective second diameter.
Claim 2
Dependent Claim
63 words
A catheter having a catheter shaft, and said catheter containing a distal protection device attached to a core wire, said core wire fixed within and with respect to the center of said catheter shaft, and said distal protection device comprising a filter mechanism capable of capturing percutaneous thrombus, and said filter mechanism expansible from a closed first diameter to a protective second diameter.
Claim 3
Dependent Claim
80 words
A catheter having a catheter shaft, and said catheter containing a distal protection device attached to a core wire, said core wire fixed within and with respect to the center of said catheter shaft, and said distal protection device comprising a filter mechanism capable of capturing percutaneous thrombus, and said filter mechanism expansible from a closed first diameter to a protective second diameter; and a balloon loaded with a stent thereon, said stent located proximal to said distal protection device.
Claim 4
Dependent Claim
80 words
A catheter having a catheter shaft, and said catheter containing a distal protection device attached to a core wire, said core wire fixed within and with respect to the center of said catheter shaft, and said distal protection device comprising a filter mechanism capable of capturing percutaneous thrombus, and said filter mechanism expansible from a closed first diameter to a protective second diameter; and a balloon loaded with a stent thereon, said stent located proximal to said distal protection device.
Claim 5
Dependent Claim
58 words
In combination: a balloon catheter fixed to a core wire having a distal end; a stent loaded on a balloon carried on said catheter; a distal protection device attached to the distal end of said wire, said distal protection device located distal to the position of said stent along said balloon; and a sheath positioned over said stent.
Claim 6
Dependent Claim
58 words
In combination: a balloon catheter fixed to a core wire having a distal end; a stent loaded on a balloon carried on said catheter; a distal protection device attached to the distal end of said wire, said distal protection device located distal to the position of said stent along said balloon; and a sheath positioned over said stent.
Claim 7
Dependent Claim
58 words
In combination: a balloon catheter fixed to a core wire having a distal end; a stent loaded on a balloon portion of said catheter; a distal protection filter attached to the distal end of said wire, said distal protection device located distal to the position of said stent along said balloon; and a sheath positioned over said stent.
Claim 8
Dependent Claim
58 words
In combination: a balloon catheter fixed to a core wire having a distal end; a stent loaded on a balloon portion of said catheter; a distal protection filter attached to the distal end of said wire, said distal protection device located distal to the position of said stent along said balloon; and a sheath positioned over said stent.
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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) | 2005-11-25 | 2006-05-27 | 2006-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-25 | 2010-05-27 | 2010-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-25 | 2014-05-27 | 2014-11-26 | $7700.00 | Window Closed / Lapsed |