Ultrasonically marked cardiac catheters

Details Ultrasonically marked cardiac catheters Ultrasonically marked cardiac catheters

1985-01-31

1987-10-06

Cohen, Lee S.

Surgery

Truss

Pad

128661, A61B 1000

Patent

active

046975950

ABSTRACT:
The hollow cylindrical wall of the catheter is composed of flexible, electrically insulating, ultrasonically transparent material. Embedded therein are spaced tubular-shaped ultrasonic piezoelectric transducers which substantially surround the lumen. The transducers receive signals from the imaging transducer on the body surface and serve to establish catheter location within the body during a diagnostic procedure. Electrical connector leads from the transducers are embedded in the wall and connected to a signal processor which provides an output for incorporation into the display of an echocardiograph image display system.

REFERENCES:
patent: 3938502 (1976-02-01), Bom
patent: 4237729 (1980-12-01), McLeod et al.
patent: 4354501 (1982-10-01), Colley et al.
patent: 4407294 (1983-10-01), Vilkomerson
patent: 4431006 (1984-02-01), Trimmer et al.
patent: 4576177 (1986-03-01), Webster, Jr.

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