Method of determining the conductivity of blood

Details Method of determining the conductivity of blood Method of determining the conductivity of blood

1996-08-21

1998-10-27

Jastrzab, Jeffrey R.

Surgery

Diagnostic testing

Cardiovascular

600506, A61B 502

Patent

active

058271929

ABSTRACT:
An in vivo method of determining the conductivity of a liquid such as human blood, including the steps of determining a location in a ventricle of a patient's heart at which blood conductivity may be measured effectively, positioning a catheter having a plurality of spaced electrodes in the ventricle such that at least a pair of adjacent electrodes are positioned at the location, applying a current of known magnitude to the adjacent electrodes, measuring the voltage between the adjacent electrodes, and determining the conductivity of the patient's blood from the known current and measured voltage.

REFERENCES:
patent: 4380237 (1983-04-01), Newbower
patent: 4785823 (1988-11-01), Eggers et al.
patent: 5453576 (1995-09-01), Krivitski
Halliday et al., Fundamentals of Physics, Second Edition, 1970, (p. 548).

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