Catheter identifier and method

Details Catheter identifier and method Catheter identifier and method

1987-05-14

1989-08-15

Cohen, Lee S.

Surgery

Truss

Pad

128897, A61B 502

Patent

active

048565300

ABSTRACT:
Disclosed is an automatic means for entering into a cardiac output computer a computation constant for a given size catheter. The technique involves the placement of a capacitor across the output terminals of a thermodilution catheter assembly. This capacitor does not effect temperature measurements. By means of software controlled switching in the cardiac output computer circuity, the capacitance of this capacitor can be determined and can be used to indicate the catheter size. Disclosed also is the process used to set up and identify the catheter gauge.

REFERENCES:
patent: 4407298 (1983-10-01), Lentz et al.
patent: 4418392 (1983-11-01), Hata
patent: 4446715 (1984-05-01), Bailey
patent: 4502488 (1985-03-01), Degironimo et al.
patent: 4580557 (1986-04-01), Hertzmann
patent: 4611601 (1986-04-01), Bowman
patent: 4691703 (1987-09-01), Auth et al.
patent: 4720907 (1988-01-01), Rapp

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