Shaft driven, flexible intravascular recanalization catheter

Details Shaft driven, flexible intravascular recanalization catheter Shaft driven, flexible intravascular recanalization catheter

1985-02-13

1988-05-31

Rosenbaum, C. Fred

Surgery

Truss

Pad

604 22, A61F 1732

Patent

active

047474068

ABSTRACT:
A recanalization catheter comprising a very small diameter elongated, flexible tubular member having a distal end at which a tool is mounted for high speed rotation. A flexible drive assembly is located within the tubular member and is connected to the tool. The drive assembly includes a flexible drive shaft mounted within plural spaced bearings to enable the shaft to be rotated at a very high rate of speed from a remotely located motor. The bearings serve to keep the drive shaft centered even as the catheter is bent through a sharp radius of curvature, while also preventing the shaft from going into critical whirl.

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patent: 4424045 (1984-01-01), Kulischenko et al.
patent: 4445509 (1984-05-01), Auth
patent: 4541423 (1985-09-01), Barber

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