Surgery – Truss – Pad
Patent
1981-08-31
1985-03-12
Kamm, William E.
Surgery
Truss
Pad
128903, A61B 500
Patent
active
045038627
ABSTRACT:
Hospital patient temperatures are monitored by providing each patient with a battery powered transmitter containing a thermister and reference resistor which is positioned over the patient's carotid artery. A receiver, carried by a nurse, includes an actuator for closing a reed switch in a transmitter near which it is positioned to activate that transmitter. Upon actuation of the transmitter, the patient's temperature varies the duty cycle of a high frequency transmitter output. The outputs of a number of transmitters, each associated with a different patient are elicited, one by one, and monitored by the receiver which contains a demodulator connected to a microprocessor coupled to a visual display. The microprocessor calculates patient temperature selectivily in Fahrenheit and Centigrade conventions. The microprocessor also detects low battery condition in the transmitter. The receiver includes a self-calibration test and low battery indication circuits.
REFERENCES:
patent: 3253588 (1966-05-01), Vuilleumier et al.
patent: 3621290 (1971-11-01), Fryer
patent: 3921621 (1975-11-01), Bressler
patent: 4090504 (1978-05-01), Nathan
patent: 4121574 (1978-10-01), Lester
Aleksich Bronco
Kamm William E.
Thomas Charles H.
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