Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1992-08-17
1995-03-07
Thaler, Michael H.
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
606159, 606101, A61B 1722
Patent
active
053953118
ABSTRACT:
An atherectomy catheter including an expandable cutter head having spaced apart blades radially extending from a cutter sleeve at a leading end of the cutter head. A torque tube is attached to and surrounds the blades at an expanding end of the cutter head opposite the leading end. An expander cable is attached to a bushing within the cutter head adjacent to the cutter sleeve and blades with the expander tube axially displaceable through the torque tube. A guide wire slidably extends through the bushing and expander tube. A guiding catheter substantially encloses the torque tube with the torque tube rotatable and axially displaceable within the guiding catheter, to rotate the cutter head as it engages a blockage in a blood vessel, An inflatable low pressure balloon around the torque tube applies a bio-active agent directly to tissues of the blood vessel cut during atherectomy. A stent with bio-active agent promotes healing of the vessel.
REFERENCES:
patent: 4445509 (1984-05-01), Auth
patent: 4610662 (1986-09-01), Weikl et al.
patent: 4636195 (1987-01-01), Wolinsky
patent: 4790813 (1988-12-01), Kensey
patent: 4885003 (1989-12-01), Hillstead
patent: 4886061 (1989-12-01), Fischell et al.
patent: 4895560 (1990-01-01), Papantonakos
patent: 4950238 (1990-08-01), Sullivan
patent: 4966604 (1990-10-01), Reiss
patent: 5000185 (1991-03-01), Yock
patent: 5030201 (1991-07-01), Palestrant
patent: 5135484 (1992-08-01), Wright
patent: 5178625 (1993-01-01), Groshong
patent: 5213577 (1993-05-01), Kratzer
patent: 5224945 (1993-07-01), Pannek
patent: 5250060 (1993-10-01), Carbo et al.
Hinohara, et al., "Directional Atherectomy--New Approaches for Treatment of Obstructive Coronary and Peripheral Vascular Diseases", Supplement IV Circulation, vol. 81, No. 3, Mar. 1990, pp. IV-79 to IV 91.
Roubin, et al., "Intracoronary Stenting During Percutaneous Transluminal Coronary Angioplasty", Supplement IV Circulation, vol. 81, No. 3, Mar., 1990, pp. IV-92 to IV-100.
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