• J Accid Emerg Med · Jan 1999

    The PEP transducer: a new way of measuring respiratory rate in the non-intubated patient.

    • D Dodds, J Purdy, and C Moulton.
    • Department of Electronic Engineering, Bolton Institute.
    • J Accid Emerg Med. 1999 Jan 1; 16 (1): 26-8.

    ObjectivesTo explore the use of a pyroelectric polymer (PEP) film as a transducer for a simple respiratory rate monitor and to evaluate the transducer in a laboratory situation.MethodsLaboratory evaluation of a new pyroelectric transducer for measurement of respiratory rate.ResultsThe amplified output from the pyroelectric film produced an excellent respiratory trace when used on a normal spontaneously breathing subject. The transducer is cheap, robust, and reliable.ConclusionsPEP films have the potential to be used as cheap and effective transducers in respiratory rate monitors for non-intubated patients. In the laboratory, they have many desirable characteristics which should now be evaluated in a clinical setting.

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