Dual-thermistor thermodilution catheter

Details Dual-thermistor thermodilution catheter Dual-thermistor thermodilution catheter

1988-06-30

1990-02-20

Sykes, Angela D.

Surgery

Truss

Pad

128713, 128736, A61B 502

Patent

active

049017349

ABSTRACT:
An apparatus for reporting accurate results in thermodilution by single pulmonary arterial catheterization procedures comprises an elongated multilumen catheter having a distally-placed thermistor and proximally-placed thermistor and a plurality of electrical sensing means connected to the thermistors. The proximal thermistor is so positioned as to be substantially totally immersed in the blood-injectate mixture to rapidly and accurately determine the temperature thereof. The use of two thermistors so placed provides highly accurate temperature data requiring substantially no correction.

REFERENCES:
patent: 3595079 (1971-07-01), Grahn
patent: 4329993 (1982-05-01), Lieber et al.
patent: 4476877 (1984-10-01), Barker
patent: 4632125 (1986-12-01), Webler et al.
patent: 4676252 (1987-06-01), Trautman et al.
patent: 4685470 (1987-08-01), Sekii et al.
patent: 4730623 (1988-03-01), Lee

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