A Pocket PC Based ECG Monitor Instructor: Professor Chen Sao-Jie Presented by: James Lin 林青頤, R Chiang Yen-an 姜彥安, R Date:June 15, 2004

Outline  Introduction  Methodology  System Implementation  Hardware  Software  Discussion  Conclusions

Introduction Mobility, Communication capability Personal Digital Assistants (PDA) Tele-care Patient Tele-monitoring Devices Data, Images Tele-monitoring Non-clinical environments Homes, elder communities, ambulances.…anywhere Telemedicine Save time, reduce cost, improve medicine quality… Improve the quality of life of the people Uses:

Motivation

Methodology  PDA + ECG Acquisition Module  ECG Monitor  ECG Monitor  Mobility  Communication capability  Personal health care

System Implementation  System implementation  Block diagram  Testing architecture  HW/SW Co-design  iPAQ Pocket PC  Software Languages

Block Diagram of the Pocket PC Based ECG Monitor Block Diagram of the Pocket PC Based ECG Monitor Pocket PC (running Flymedic ECG) RS232 ECG Amplifiers and Filters ECG Acquisition Controller Optical Isolation ECG Data Acquisition Module Electrodes

Architecture of the Tele-monitoring System

Hardware/Software  Hardware  iPAQ Pocket PC  Pre-amplifier and Filters  Power Circuit  ADC and CPU  Communication Interface  PCB layout  Prototype  Software  Development Tools

iPAQ Pocket PC  H3630  Microsoft Windows for Pocket PC  Color screen with 240x320 resolution  206 MHz StrongARM SA bits RISC processor  32 MB SDRAM ; 32 MB Flash ROM  One standard serial port  950 mAh Li Battery

Pre-amplifier

Filters  Bandwidth = Hz

Power Circuit

ADC and CPU  Sampling rate = 200Hz, 10-bit resolution

Communication Interface  Baud rate = 57600BPS

Developmental Tools  Pocket PC  Microsoft embedded Visual C  Server site  Borland C++ Builder 5.0

Results  Lead II ECG waveform real-time displayed on the Pocket PC’s screen and the ECG waveforms displayed on the local center in real time.

Discussion  Combined with a GSM and GPS module, the monitoring device can be converted into an emergency care system.  There would be a lot of use for this product in a hospital or other areas where constant health monitoring is needed.  Hardware/Software design for biomedical needs.

Conclusions  The prototype of the Pocket PC based ECG monitor has been developed and tested.  PDA or Pocket PC based monitoring devices offer more mobility and communication capability and flexibility over the traditional ones.  For long-term recording, the power consumption of Pocket PC would determine the recording time.  Personal health management can also be accomplished via a customized program.

References  [1] J. C. Lin. “Applying telecommunication technology to health-care delivery.” IEEE Eng. Med. Biol. Mag., vol. 18, no. 4, pp.28-31, Jul./Aug  [2] A. I. Hernández, F. Mora, G. Villegas, G. Passariello and G. Carrault. “ Real-time ECG transmission via Internet for nonclinical applications.” IEEE Trans. Inform. Technol. Biomed., vol. 5, no. 3, pp , Sep  [3] B. Woodward, R. S. H. Istepanian and C. I. Richards. “Design of a telemedicine system using a mobile telephone.” IEEE Trans. Inform. Technol. Biomed., vol. 5, no. 1, pp , Mar  [4] P. Várady, Z. Benyó and B. Benyó. “An open architecture patient monitoring system using standard technologies.” IEEE Trans. Inform. Technol. Biomed., vol. 6, no. 1, pp , Mar  [5] S. Barro, J. Presedo, D. Castro, M. Fernández-Delgado, S. Fraga, M. Lama and J. Vila. “Intelligent telemonitoring of critical-care patients.” IEEE Eng. Med. Biol. Mag., vol. 18, no. 4, pp , Jul./Aug

Thank you for your attention!