Device and method for measuring volumetric blood flow in a vesse

Details Device and method for measuring volumetric blood flow in a vesse Device and method for measuring volumetric blood flow in a vesse

1988-02-04

1989-09-26

Cohen, Lee S.

Surgery

Truss

Pad

128713, 12866206, 12866301, 128673, A61R 502

Patent

active

048692638

ABSTRACT:
Device for measuring volumetric blood flow in a vessel comprising a catheter having proximal and distal extremities. A balloon is carried by the distal extremity of the catheter. A balloon inflation lumen is carried by the catheter and is in communication with the balloon. A toroidal ultrasonic transducer is carried by the catheter and is spaced proximally of the balloon. Electrical circuitry is provided for supplying electrical energy to the transducer. The transducer produces a large substantially uniform beam of ultrasonic energy to illuminate a vessel of approximately three centimeters in diameter with the ultrasonic energy.

REFERENCES:
patent: 4319580 (1982-05-01), Colley
patent: 4589419 (1986-05-01), Laughlin et al.
patent: 4605009 (1986-08-01), Pourcelot et al.
patent: 4616652 (1986-10-01), Simpson
patent: 4637401 (1987-01-01), Johnston
patent: 4665925 (1987-05-01), Millar
patent: 4721115 (1988-01-01), Owens
patent: 4722347 (1988-02-01), Abrams et al.
patent: 4733669 (1988-03-01), Segal

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