Author : P Nagaraju, Murugan Ramasamy Shahasan Noushad

The advancements in the technology are driven by the customer needs and customer satisfaction, where healthcare institutions must continuously adapt in order to provide optimal patient care. One significant advancement is the development of Wireless Medical Telemetry systems for Maternal-Fetal Monitoring. With wireless systems, patients can move freely around the hospital while their physiological parameters like Uterine and Fetal activity, Fetal Heart Rate and FECG/MECG are measured. This new model of patient care is a revolutionary advancement in modern healthcare. The Telemetry system consists of a Transmitter and a Receiver unit. The transmitter can capture Uterine Activity (UA) using TOCO transducer or Intrauterine Pressure Catheter (IUPC). Fetal Heart Rate by means of Ultrasound transducers and FECG/MECG parameters are measured by the 3-lead electrode system. The captured data is then transmitted wirelessly to a receiver unit using frequency ranges within WMTS band. The key component of the receiver is CPLD which is from Altera’s MAX II family. QuartusII programming tool is used to program the CPLD. The RTL schematic for enable signals for all the parameters is simulated using ModelSim. After the implementation of CPLD in the receiver main board, results are checked by measuring the values in the Fetal monitor which displays the maternal/fetal parameters.

Keywords: CPLD- Complex Programmable Logic Device, WMTS-Wireless Medical Telemetry System, FHR-Fetal Heart rate, IUPC–Inter Uterine Pressure Catheter

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)