Method and device for doppler-guided and imaged retrograde cathe

Details Method and device for doppler-guided and imaged retrograde cathe Method and device for doppler-guided and imaged retrograde cathe

1991-03-14

1993-03-02

Jaworski, Francis

Surgery

Truss

Pad

A61B 806

Patent

active

051900459

ABSTRACT:
A method and apparatus for Doppler-guided, imaged intravascular catheterization of a higher mammal includes inserting into a peripheral blood vessel a steerable catheter which has a Doppler ultrasound transceiver at its tip, generating from signals produced by the ultrasound transceiver a continuous indication of the direction of blood flow direction relative to the catheter tip, visually displaying the indications on a display monitor, and advancing the catheter towards the heart in accordance with the indication of blood flow direction until the catheter is positioned at a desired location within the circulatory system of the mammal, and once the catheter is located at a designated position, removing the ultrasound transceiver and replacing it with an ultrasonic imaging transducer for generating a two-dimensional image of the vascular area surrounding the transducer.

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