WIRELESS MEDICAL MONITORING SYSTEM

摘要

A blood oxygen saturation level (SpO2) measurement subunit employed in a wireless transceiver unit connected to a medical monitor unit, having at least one SpO2 socket. The SpO2 measurement subunit includes power supply circuitry for supplying energy to electrical components of the SpO2 measurement subunit. An illumination emulator is used for emulating the characteristics of an illumination source of a pulse oximeter. The illumination emulator utilises at least part of the energy coming from the SpO2 socket of the medical monitor. The part of the energy originally intended to energise one illumination source of the pulse oximeter, energises the power supply circuitry. A processor is employed in the wireless transceiver unit or the SpO2 measurement subunit utilized for processing information about pulsing arterial blood of a patient received from a patient companion assembly (PCA). A digital to analogue converter is used for converting the digitally processed data about a pulsing arterial blood of a patient received from the PCA, to analogue signal. A low pass filter (LPF), filtering the analogue signal, the output signal of the LPF is a pulsative voltage signal, forming a continuous electrical signal representing the pulsing arterial blood of the patient, the pulsative voltage signal is sent to the SpO2 socket of the medical monitor for displaying and further processing.