The key components that make up the electronic sphygmomanometer are roughly as follows: Used in the second generation of electronic sphygmomanometers, which are characterized by servo control through software to maintain a constant exhaust speed to improve the accuracy of blood pressure measurement. Accuracy. The companies that own this electronic control exhaust valve patent and its servo control are: Jinyidi Technology Co., Ltd., Japan's Omron and Japan's Panasonic.
The software of the electronic blood pressure monitor
This is the core of the electronic blood pressure monitor. Only a handful of 10 companies in the world can develop software suitable for mass production. Roughly speaking, there are 2 companies in mainland China: Shenzhen Jinyidi Technology Co., Ltd. and Tianjin Jiuan Medical Electronics Co., Ltd.; there are 3 companies in Taiwan; the others are all Japanese manufacturers. There are also some small developers, but since there is no mass production, the software and hardware cannot be improved or verified, it is estimated that it is difficult to have any development. This is a slow-speed device used for the first generation of electronic blood pressure monitors. Exhaust valve, also known as rubber exhaust valve, commonly known as "air core". Its disadvantages are: 1. For arms with different thicknesses, the exhaust speed is different; 2. Under different pressures, the exhaust speed is different; 3. Rubber is prone to aging, and the exhaust speed will also change as time goes by. Therefore, leaders in the field of blood pressure monitors, represented by Jin Yidi and Omron, have abandoned the technology of using mechanical slow exhaust valves (commonly known as "air cores").
Solenoid quick exhaust valve
The air valve used for rapid deflation is used in both the first and third generation electronic blood pressure monitors. There is nothing special about the solenoid quick exhaust valve. Controlling power consumption is the difficulty. Used for auscultation and early semi-automatic electrotherapy