Development of a Wrist Sphygmomanometer with an Active Soft Mechanism

In recent years, with the aging of the population, home health care using a home blood pressure monitor has been emphasized. I think that more measurements during the day are needed for people to observe blood pressure more accurately and use it to manage their physical condition. Therefore, in order to reduce the number of measurement procedures as much as possible, the purpose is to reduce the number of measurement procedures in a compact size by performing the measurement only by placing the wrist from above. In this study, we manufactured a device that restrains, compresses, and measures the wrist using a soft actuator made of film. We designed three types of triangular prism type soft actuators with active mechanisms, and constructed a drive sequence using solenoid valves. A pulsation measurement experiment was conducted using the manufactured device, and I was able to measure accurate pulsation by myself.