Variable diameter rotating recanalization catheter and surgical

Details Variable diameter rotating recanalization catheter and surgical Variable diameter rotating recanalization catheter and surgical

1991-07-22

1993-09-07

Rosenbaum, G. Fred

Surgery

Instruments

Blood vessel, duct or teat cutter, scrapper or abrader

606170, 606180, A61B 1732

Patent

active

052424618

ABSTRACT:
According to the invention there is provided an intravascular catheter comprising an elongated flexible jacket having opposed proximal and distal ends and a central passageway extending between and interconnecting the ends. A rotating working head is located at the distal end of the jacket. A flexible drive cable extends through the passageway of the jacket, having a driving end operatively connected to the working head for rotating it, and a driven end operatively connected to a high-speed motor. The working head is rotatably mounted in a bearing sleeve which is further attached to the catheter jacket. The working head is actuated, by a actuator which adjust the a pair of tip portions from an at least initial retracted position with a first effective working diameter to an extended position with a second effective working diameter greater than the first effective diameter. Centrifugal forces generated by rotation of the cable cause the tip portions to assume the greater effective working diameter.

REFERENCES:
patent: 4811735 (1989-03-01), Nash
patent: 4895560 (1990-01-01), Papantonakos
patent: 4966604 (1990-10-01), Reiss
patent: 5041124 (1991-08-01), Kensey

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