Surgery – Instruments – Blood vessel – duct or teat cutter – scrapper or abrader
Reexamination Certificate
2005-01-18
2005-01-18
Truong, Kevin T. (Department: 3731)
Surgery
Instruments
Blood vessel, duct or teat cutter, scrapper or abrader
Reexamination Certificate
active
06843797
ABSTRACT:
A system and method for opening a lumen in an occluded blood vessel, e.g., a coronary bypass graft, of a living being. The system comprises an atherectomy catheter having a working head, e.g., a rotary impacting impeller, and a debris extraction sub-system. The atherectomy catheter is located within a guide catheter. The working head is arranged to operate on, e.g., impact, the occlusive material in the occluded vessel to open a lumen therein, whereupon some debris may be produced. The debris extraction sub-system introduces an infusate liquid at a first flow rate adjacent the working head and withdraws that liquid and some blood at a second and higher flow rate, through the guide catheter to create a differential flow adjacent the working head, whereupon the debris is withdrawn in the infusate liquid and blood for collection outside the being's body. The introduction of the infusate liquid may also be used to establish an unbalanced flow adjacent the working head to enable the atherectomy catheter to be steered hydrodynamically. A guide wire having an inflatable balloon on its distal end may be used with the atherectomy catheter to block the flow of debris distally, while enabling distal tissues to be perfused with an oxygenating liquid. At least one flow control port may be provided in the guide catheter to prevent collapse of the vessel being revascularized. A cradle is provided to fix the guide catheter and guide wire in position within the body of the being while enabling the atherectomy catheter to be advanced along the guide wire and through the guide catheter.
REFERENCES:
patent: 4445509 (1984-05-01), Auth
patent: 4589412 (1986-05-01), Kensey
patent: 4631052 (1986-12-01), Kensey
patent: 4679558 (1987-07-01), Kensey et al.
patent: 4686982 (1987-08-01), Nash
patent: 4696667 (1987-09-01), Masch
patent: 4700705 (1987-10-01), Kensey et al.
patent: 4747821 (1988-05-01), Kensey et al.
patent: 4749376 (1988-06-01), Kensey et al.
patent: 4762129 (1988-08-01), Bonzel
patent: 4790813 (1988-12-01), Kensey
patent: 4842579 (1989-06-01), Shiber
patent: 4857045 (1989-08-01), Rydell
patent: 4883458 (1989-11-01), Shiber
patent: 4898575 (1990-02-01), Fischell et al.
patent: 4957482 (1990-09-01), Shiber
patent: 5009659 (1991-04-01), Hamlin et al.
patent: 5030201 (1991-07-01), Palestrant
patent: 5042984 (1991-08-01), Kensey et al.
patent: 5049124 (1991-09-01), Bales, Jr.
patent: 5074841 (1991-12-01), Ademovic et al.
patent: 5087265 (1992-02-01), Summers
patent: 5097849 (1992-03-01), Kensey et al.
patent: 5114399 (1992-05-01), Kovalcheck
patent: 5195956 (1993-03-01), Stockmeier
patent: 5224945 (1993-07-01), Pannek, Jr.
patent: 5267955 (1993-12-01), Hanson
patent: 5273526 (1993-12-01), Dance et al.
patent: 5282484 (1994-02-01), Reger
patent: 5284468 (1994-02-01), Nelson
patent: 5314407 (1994-05-01), Auth et al.
patent: 5358472 (1994-10-01), Vance et al.
patent: 5366463 (1994-11-01), Ryan
patent: 5368603 (1994-11-01), Halliburton
patent: 5370609 (1994-12-01), Drasler et al.
patent: 5395311 (1995-03-01), Andrews
patent: 5402790 (1995-04-01), Jang et al.
patent: 5409454 (1995-04-01), Fischell et al.
patent: 5423742 (1995-06-01), Theron
patent: 5429136 (1995-07-01), Milo et al.
patent: 5496267 (1996-03-01), Drasler et al.
patent: 5632755 (1997-05-01), Nordgren et al.
patent: 5665098 (1997-09-01), Kelly et al.
patent: 5681336 (1997-10-01), Clement et al.
patent: 5868767 (1999-02-01), Farley et al.
patent: 5882329 (1999-03-01), Patterson et al.
patent: 5947985 (1999-09-01), Imran
patent: 5954745 (1999-09-01), Gertler et al.
patent: 6135991 (2000-10-01), Muni et al.
patent: 6482217 (2002-11-01), Pintor et al.
patent: 6652480 (2003-11-01), Imran et al.
patent: 0353087 (1990-01-01), None
patent: WO 9300119 (1993-01-01), None
patent: WO 9521576 (1995-08-01), None
Amplatz Thrombectomy Device, The Clot-Buster by Microvena Corporation, publication date unknown.
AngioJet Rapid Thrombectomy System by Possis Medical Inc. Innovations, May, 1996, pp. 94 and 95.
Extraction Atherectomy, Putting Plaque and Thrombus in Their Proper Place by Interventional Technologies, Inc., publication date unknown.
Rheolytic Thrombectomy System AngioJet by Possis Medical Inc. Innovations for Life, publication date unknown.
Dodson, Jr. Charles W.
Fisher William T.
Nash John E.
Caesar Rivise Bernstein Cohen & Pokotilow Ltd.
Kensey Nash Corporation
Truong Kevin T.
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