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Application of piezo film technology for the quantitative assessment of pruritus
T L Talbot1, J M Schmitt, N V Bergasa
1National Institutes of Health, Bethesda, MD 20892.
Biomedical Instrumentation & Technology
|September 1, 1991
Abstract:
A method to quantitate scratching has been developed for assessing the efficacies of interventions purported to ameliorate pruritus. The technique employs a piezo film sensor attached to the finger and the supporting electronics to amplify, transmit, and process the signals generated by the piezo film. The piezo film is essentially a contact microphone on the fingernail of the scratching subject. The method is currently incorporated into clinical trials, and preliminary results are promising.