04331157 is referenced by 48 patents and cites 6 patents.

Transcutaneous electrical nerve stimulation is applied to the patient, as though electrocardiograph monitoring is not being practiced. The EKG signals are preprocessed through a selective sample and hold module, which performs amplification, comparison with selective frequency and amplitude standards (as by differentiation) and temporary holding of EKG signals at such time as the transcutaneous nerve stimulating pulses are occurring, as sensed against the frequency and amplitude criteria. In the absence of transcutaneous stimulation signals, EKG signals are coupled directly through for conventional EKG processing.

Title
Mutually noninterfering transcutaneous nerve stimulation and patient monitoring
Application Number
6/167268
Publication Number
4331157
Application Date
July 9, 1980
Publication Date
May 25, 1982
Inventor
Alan Coombes
Brooklyn Park
MN, US
William E Bursack
New Brighton
MN, US
John W Keller Jr
Miami
FL, US
Agent
Audley A Ciamporcero Jr
Assignee
Stimtech
MN, US
IPC
A61B 5/04
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