A Non- Invasive Blood Pressure Measurement Using Embedded Technology

Abstract

A Health care is one of the fast emerging fields today. With the average age of general population increasing each year the credit goes to cutting edge of medical research. New methods are developed almost every month to as a solution to numerous health problems for which accurate diagnosis is the need of the day. The Biomedical equipment provides accurate reproduction of body signals and automated diagnosis and patient monitoring systems. The field of biomedical instrumentation is an integral part of medical research. Sometimes it becomes necessary to monitor physiological events from a distance like monitoring a patient in an ambulance and in other applications away from the hospital, collection of medical data from a home or office and use of telephone links for transmission of medical data. In this research work it is to study the Non- Invasive Blood Pressure Measurement of patients using embedded technology which has the low cost, reliable, and portable and it is used in many medical laboratories and industries. In present development, the real time blood pressure biomedical signal is measured using an optical measurement circuit based plethysmography technique(PPG) contineously for a long period of time.The detected measured signal amplified using an operational amplifier circuit and interface with the microcontroller. The numerical reading values of systolic and distolic blood pressure remotely recorded and displayed with the help of LCD and stationary computer.