Surgery – Means for introducing or removing material from body for... – With means for cutting – scarifying – or vibrating tissue
Patent
1989-11-24
1991-07-09
Apley, Richard J.
Surgery
Means for introducing or removing material from body for...
With means for cutting, scarifying, or vibrating tissue
604 29, 604 53, 128755, A61B 1722
Patent
active
050302019
ABSTRACT:
An expandable atherectomy catheter device includes an expandable cutting head consisting of deformable cutting members to remove an atheroma or blood clot from a blood vessel. The cutting members, consisting of wires or blades, extend parallel to each other and are supported at the distal end of a rotatable catheter. A retraction member is slidingly disposed within the rotatable catheter and is coupled at its distal end to the cutting members; the retraction member can be manipulated from the proximal end thereof to adjust compression of the cutting members, and hence, the diameter of the cutting head. A motor is coupled to the proximal end of the rotatable catheter for rotating the cutting head to remove the atheromatous plaque or blood clot. A non-rotatable delivery catheter is inserted percutaneously within the blood vessel, and the distal end thereof is positioned proximate the site of the obstruction. The rotatable catheter extends within the delivery catheter, and the cutting head of the rotatable catheter is expanded upon being advanced to the site of the obstruction. Apparatus for aspirating the removed plaque or blood clot is also provided.
REFERENCES:
patent: 679671 (1901-07-01), Hannigan
patent: 1155169 (1915-10-01), Starkweather
patent: 2816552 (1957-12-01), Hoffman
patent: 3557794 (1971-01-01), Van Patten
patent: 3670732 (1972-06-01), Robinson
patent: 3692029 (1972-10-01), Adair
patent: 3938530 (1975-02-01), Santomieri
patent: 4273128 (1981-06-01), Lary
patent: 4465072 (1984-08-01), Taheri
patent: 4611594 (1986-10-01), Grayhack et al.
patent: 4669469 (1987-06-01), Gifford, III et al.
patent: 4848000 (1986-05-01), Hershenson
"New InterVentional Technology", The American Journal of Cardiology; Oct. 1, 1988, vol. 62, pp. 12F-24F.
"Recanalization of Obstructed Arteries with a Flexible, Rotating Tip Catheter"; Radiology, Nov. 1987, vol. 165; pp. 387-389, No. 2; Kensey et al.
"Removal of Focal Atheromatous Lesions By Angioscopically Guided High Speed Rotary Atherectomy", Journal of Vascular Surgery, Feb. 1988, vol. 7, No. 2, pp. 292-300, Ahn et al.
Apley Richard J.
Thomas L.
LandOfFree
Expandable atherectomy catheter device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Expandable atherectomy catheter device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandable atherectomy catheter device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-615399