DocumentCode
1183244
Title
Instrumentation for Telemetering the Electrocardiogram from Scuba Divers
Author
Slater, Allan ; Bellet, Samuel ; Kilpatrick, David G.
Author_Institution
Division of Cardiology, Philadelphia General Hospital, Philadelphia, Pa. 19104.
Issue
2
fYear
1969
fDate
4/1/1969 12:00:00 AM
Firstpage
148
Lastpage
151
Abstract
A system for telemetering the human electrocardiogram and other parameters over distances in excess of 600 feet through the sea is described. Versatility is obtained by using plug-in subassemblies in the transmitter for the parameters to be monitored. In view of the propagation characteristics of water, 55-kHz ultrasonic energy utilizing frequency modulation was chosen as the optimum transmission method. Problems encountered in underwater telemetry are outlined and techniques for their solutions are discussed. The results of tests are shown which indicate that electrocardiograms of good clinical quality can be obtained from free swimming divers.
Keywords
Attenuation; Biomedical monitoring; Condition monitoring; Frequency modulation; Humans; Instruments; Radio transmitters; Telemetry; Testing; Water; Diving; Electrocardiography; Humans; Methods; Telemetry;
fLanguage
English
Journal_Title
Biomedical Engineering, IEEE Transactions on
Publisher
ieee
ISSN
0018-9294
Type
jour
DOI
10.1109/TBME.1969.4502628
Filename
4502628
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