Patent US6818002B2 successfully refreshed from Google Patents.
US6818002B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vessel cleaner and barrier
Assignee: Individual
•
Filing: 2002-09-23
•
Granted: 2004-11-16
•
Expires: 2022-09-23
Abstract
Abstract A rotary flexible agitator system for removing an obstruction from within a patient's vessel that a motor-driven rotary flexible agitator-shaft disposed in the tubular housing, the agitator-shaft having an offset distal-agitator attached to its distal end that extends out of the open distal end, the effective diameter of the offset distal-agitator being substantially larger than its cross-sectional diameter, wherein rotating the offset distal-agitator breaks the obstruction in the vessel to pieces and the relative motion between the rotary flexible agitator-shaft and the flexible tube reduces the longitudinal friction that may resist the movement of the pieces through the flexible tube; and a catheter in which the flexible tube is disposed and guided into the vessel having a barrier at its distal end section for temporarily blocking flow through the vessel and reducing the likelihood of distal embolization.
Inventors
- 👤 Samuel Shiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:03
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B17/22; A61B2017/22082; A61B2017/320733; A61B2217/00; A61B2217/002; A61B2217/005
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
148 words
A process of removing an obstruction from a vessel comprising the following steps: inserting into the vessel a distal end of a catheter having an expandable distal barrier; inserting into the vessel a rotary flexible agitator system comprising a tubular housing having a flexible tube with an open distal end and a proximal end section with a suction port, a motor-driven rotary flexible agitator-shaft disposed in the tubular housing, the agitator-shaft having an offset distal-agitator attached to its distal end; temporarily occluding the vessel by expanding the distal barrier; rotating the offset distal-agitator that extends out of the open distal end, and has an effective diameter substantially larger than its cross section, to break the obstruction in the vessel to pieces, the relative motion between the rotary flexible-agitator and the flexible tube reducing the longitudinal friction that may resist the movement of the pieces through the flexible tube.
Claim 2
Dependent Claim
148 words
A process of removing an obstruction from a vessel comprising the following steps: inserting into the vessel a distal end of a catheter having an expandable distal barrier; inserting into the vessel a rotary flexible agitator system comprising a tubular housing having a flexible tube with an open distal end and a proximal end section with a suction port, a motor-driven rotary flexible agitator-shaft disposed in the tubular housing, the agitator-shaft having an offset distal-agitator attached to its distal end; temporarily occluding the vessel by expanding the distal barrier; rotating the offset distal-agitator that extends out of the open distal end, and has an effective diameter substantially larger than its cross section, to break the obstruction in the vessel to pieces, the relative motion between the rotary flexible-agitator and the flexible tube reducing the longitudinal friction that may resist the movement of the pieces through the flexible tube.
Claim 3
Dependent Claim
15 words
As in claim 1 wherein the catheter is inserted into the vessel through an introducer.
Claim 4
Dependent Claim
22 words
As in claim 2 wherein the introducer has a side arm through which fluid is introduced into or withdrawn from the vessel.
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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) | 2007-11-16 | 2008-05-17 | 2008-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-11-16 | 2012-05-17 | 2012-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-11-16 | 2016-05-17 | 2016-11-16 | $7700.00 | Window Closed / Lapsed |