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Biomedical telemetry techniques
Critical Reviews in Biomedical Engineering
|February 1, 1982
Summary
Biomedical telemetry enables wireless transmission of vital signs like ECG and EEG from patients or animals. This review covers system advancements, applications, and future directions in physiologic data monitoring.
Area of Science:
- Biomedical Engineering
- Physiology
- Telecommunications
Background:
- Biomedical telemetry allows for the wireless transmission of physiological data.
- Advancements have enabled monitoring of diverse parameters from unencumbered subjects.
- State-of-the-art systems offer miniaturization, extended range, and reliable data recovery.
Purpose of the Study:
- To review key developments and applications in biomedical telemetry.
- To discuss the advantages of wireless physiologic data transmission.
- To explore various electronic techniques and system implementations.
Main Methods:
- Review of historical landmarks and current state-of-the-art in biomedical telemetry.
- Discussion of electronic techniques for data transmission and recovery (FM, PAM, PWM, PCM).
- Analysis of system developments focusing on size, power, and channel multiplicity.
Main Results:
- Biomedical telemetry systems can monitor a wide range of parameters including biopotentials (ECG, EMG, EEG), temperature, mechanical events, pH, and pressure.
- Systems have evolved from discrete transistors to integrated microcircuits, with options for external or implantable devices.
- Applications span research labs, intensive care units, portable care, and field monitoring of animals.
Conclusions:
- Biomedical telemetry offers significant advantages for monitoring physiologic data in various settings.
- Ongoing developments focus on improving power sources, recharging capabilities, and system integration.
- The technology is projected to have a significant impact on future healthcare and research.