Wireless Health Monitoring Based on Biomedical System on a Chip WearMeSoC RTD 2013 Q. Huang, F. Schulthess, P. Schönle, S. Fateh, T. Burger Integrated Systems Laboratory – ETH Zürich Abstract – Aging population and increasing medical costs in industrialized nations require the development of novel miniaturized healthcare devices for use in ambulatory environments and outpatient monitoring applications. The prevalence of Machine-to-Machine Communication (M2M) together with the increasing availability of inexpensive handheld computers offer a new way of meeting this demand. WearMeSoC plans to develop a matchbox-sized healthcare device based on a biomedical System on a Chip (SoC) with wireless connectivity. Real-world medical scenarios including post- operative patient monitoring, treatment of sleep disorders, assessment of driving capability and study of altitude-related disorders will be used to demonstrate the effectiveness of the system. SoC-Based Healthcare Device • Miniature size is inevitable for developing new approaches for non- intrusive patient monitoring: no more need for bulky devices which limit a patient’s mobility. • Low-power operation maximizes recording time. Efficient power management of the SoC is used to adapt RF duty cycle to specific application needs. • Multi-purpose sensor and actuator circuitry covering the most common medical tests: ECG, EEG, pulse oximetry. Post-Operative Patient Monitoring Treatment of Sleep Disorders Assessment of Driving Capability Study of Altitude- Related Disorders • Prompt relocation of pa- tients from ICU to normal ward lowers healthcare costs. • Most important tests are monitored: ECG and pulse oximetry. • Integration of system into IT infrastructure of hospital for alerting. • Usage of miniature device with SoC to record EEG during sleep non- intrusively, possibly even at home. • Off-line signal analysis is conducted in the sleep laboratory. • Possibility to automate diagnosis or alerting. • Eye and head movement can be captured with skin electrodes. • Records where people look when driving. • Planned system meets demand for a way to objectively assess driving capability of elderly people. • Conduct field studies in order to analyze respi- ratory system in high- altitude areas. • Assess workplace safety in some areas. • Portable device without wires does not encum- ber subject during usual activities. Functional overview of the planned SoC together with external peripherals. Visualization of matchbox- sized healthcare device. • High-sensitivity analog front-end guarantees low-noise recording. • Flexible digital signal processing blocks implemented in hardware. Control via state-of-the-art embed- ded processor. • Several SoCs are cascadable in order to serve applications that require a higher number of input channels. Memory Management Data Aquisition channels Actuators Test & Debug Power Supply Management Clock Interfaces Digital Signal Processing Bluetooth FM Radio GSM/GPRS Cellular Modem RAM & EEPROM Crystal Battery EEG1 EEG2 ECG1 ECG2 . . . . . . Oximetry1 Oximetry2 . . . WearMeSoC Others

Wireless Health Monitoring Based on Biomedical System on a Chip

Download PDF Report

Upload
others
View
1
Download
0

Embed Size (px)

Citation preview

Wireless Health Monitoring Basedon Biomedical System on a Chip

WearMeSoC RTD 2013

Q. Huang, F. Schulthess, P. Schönle, S. Fateh, T. BurgerIntegrated Systems Laboratory – ETH Zürich

Abstract – Aging population and increasing medical costs in industrialized nations require the development of novelminiaturized healthcare devices for use in ambulatory environments and outpatient monitoring applications. Theprevalence of Machine-to-Machine Communication (M2M) together with the increasing availability of inexpensive handheldcomputers offer a new way of meeting this demand. WearMeSoC plans to develop a matchbox-sized healthcare devicebased on a biomedical System on a Chip (SoC) with wireless connectivity. Real-world medical scenarios including post-operative patient monitoring, treatment of sleep disorders, assessment of driving capability and study of altitude-relateddisorders will be used to demonstrate the effectiveness of the system.

SoC-Based Healthcare Device

• Miniature size is inevitable for developing new approaches for non-intrusive patient monitoring: no more need for bulky devices whichlimit a patient’s mobility.

• Low-power operation maximizes recording time. Efficient powermanagement of the SoC is used to adapt RF duty cycle to specificapplication needs.

• Multi-purpose sensor and actuator circuitry covering the mostcommon medical tests: ECG, EEG, pulse oximetry.

Post-Operative Patient Monitoring

Treatment of Sleep Disorders

Assessment of Driving Capability

Study of Altitude-Related Disorders

• Prompt relocation of pa-tients from ICU to normalward lowers healthcarecosts.

• Most important tests aremonitored: ECG andpulse oximetry.

• Integration of systeminto IT infrastructure ofhospital for alerting.

• Usage of miniature de-vice with SoC to recordEEG during sleep non-intrusively, possibly evenat home.

• Off-line signal analysis isconducted in the sleeplaboratory.

• Possibility to automatediagnosis or alerting.