| Summary: | 碩士 === 中原大學 === 生物醫學工程研究所 === 105 === The annual incidence of sudden cardiac death ranges from 40 to 60 per 100,000 in the general population. Survival rates are less than 10%. The time of first aid is the key to survival. Early resuscitation can also reduce the degree of disability of survivors, follow-up medical costs and economic losses. To reduce the delay in first aid, this study develops a system which can continuously monitors the pulse and sends the local and remote warnings when the pulse stops.
The “wearable pulselessness alerting system” integrates a pulse sensor that uses photoplethysmography technology to detect pulse, a capacitive touch sensor to detect whether the instrument is worn on the body, a buzzer to achieve the goal of immediate warning, and a microcontroller board that has Wi-Fi support, through the website server function, to send an alert message to the phone. After a series of system tests and the experiment that use of a blood pressure cuff inflation to simulate pulselessness, the results demonstrate that the system has achieved sensitivity of 97.83% and the specificity of 94.12%, respectively. It can detect pulselessness in person as a simulation of pulselessness and timely sent local and remote warning signal.
The system is easy to wear and non-invasive, in the future, it can be used in the elderly patients living independently, residents in nursing home or long-term care center, hospitalized patients, patients with heart disease, athletes, and even the general population.
|
|---|
