Abstract: A monitoring system for providing continuous monitoring of a patient, including periods of transport, includes a data acquisition and processing module receiving physiological data from the patient. The module may be inserted in a bedside display unit to display the physiological condition data being monitored. The module may also be inserted in a portable display unit that can accompany the patient during transport. Connectors permit the module to simultaneously drive both the display units so that no data is lost when the module is removed from the bedside unit and placed in the portable unit and vice versa.

Abstract: Optimal measurement of ultrasonic random backscatter from the myocardium is obtained by band limiting and whitening the received signal, squaring, summing and scaling same. The whitening is carried out for all spectrally altering factors to which the ultrasonic signal has been subjected. This includes whitening for the power law frequency response characterstics of the myocardium itself. Scaling includes a factor accounting for the energy of the effective transmitted ultrasonic signal and a factor providing appropriate units of measurement. The optimal measurement may be time averaged over one or more heartbeats for use in the diagnosis of ischemia or other cardiac conditions. It may be subjected to discrete Fourier transform analysis, to obtain its amplitude modulation and phase characteristics for similar purposes.

Abstract: A disposable, biopotential electrode has a base sheet of plastic or other material. A layer of carbon is applied to the base sheet. A layer of silver/silver chloride is applied to the carbon layer. An ionically conductive adhesive is applied to the silver/silver chloride layer.