Method and apparatus for analyzing cardiovascular systems

Details Method and apparatus for analyzing cardiovascular systems Method and apparatus for analyzing cardiovascular systems

1978-06-05

1980-06-10

Cohen, Lee S.

Surgery

Truss

Pad

A61B 502

Patent

active

042067642

ABSTRACT:
The operation of a patient's cardiovascular system is analyzed by positioning an inflatable cuff over an extremity of the patient so that a blood vessel in the extremity experiences the cuff pressure and then modifying the pressure in the cuff through a cycle in which the vessel is occluded. A first electrical signal is generated as a function of the pressure in the cuff during the cycle and a second electrical signal is independently generated as a function of the rate of change of pressure in the cuff through use of a transducer which receives a fluid signal proportional to the pressure in the cuff and moves a core with respect to a wire coil to generate the rate of change signal. The two signals are plotted relative to one another and the resulting plot includes information relating to cardiovascular disfunctions such as arhythmia, ischemia and hypertrophy.

REFERENCES:
patent: 3482565 (1969-12-01), Gowen
patent: 3741199 (1973-06-01), Sharpe
patent: 3811439 (1974-05-01), Brown
patent: 3903872 (1975-09-01), Link

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