Demand electroventilator

Details Demand electroventilator Demand electroventilator

1986-04-24

1989-05-09

Smith, Ruth S.

Surgery

Truss

Pad

128723, A61N 136

Patent

active

048279358

ABSTRACT:
A demand electroventilator for monitoring and stimulating the respiration of a patient operates in a manner analogous to the operation of a demand cardiac pacemaker for monitoring and stimultating the heart when needed. The demand electroventilator has a pair of stimulating electrodes for placement on the chest of the patient and a pair of monitoring electrodes for placement on the patient's chest. The demand electroventilator also has a monitoring module connected to the monitoring electrodes, a stimulating module connected to the stimulating electrodes and a control module connected to the stimulating and monitoring modules. The monitoring module generates a signal related to the respiration of the patient which the control module interprets and causes the stimulating module to apply a train of electrical pulses having durations of 0.1 msec or less to the patient to stimulate respiration when needed.

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G. W. Holmes, M.D., W. B. Buckingham, M.D., D. W. Cugell, M.D., K. Kirchner, M.D., "Electric Stimulation of Breathing in Chronic Lung Diseases," J.A.M.A. (Mar., 1958).
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