Hypertension has become one of the causes of many cardiovascular and cerebrovascular diseases. As hypertension becomes more and more common, wrist blood pressure monitors are widely used in clinics and families because of their small size, easy operation, and fast speed. The wrist blood pressure monitors measure the “pulse pressure” of the arteries of the wrist. If the blood pressure monitor wristband is not fastened, the measured value will be biased. ZHAOWEI gearbox enables wrist blood pressure monitors to achieve stability, comfort, and convenience.
ZHAOWEI gearboxes for wrist blood pressure monitors make blood pressure monitoring more convenient. You can easily measure blood pressure with one hand. When you hold the wristband, the sensor will sense your hand. ZHAOWEI gearbox enables the wrist blood pressure monitor to contract. When the sensor senses that the output force of the gearbox reaches a certain number (elastic tension), It will automatically stop, then it will start measuring blood pressure, and intelligently release the wristband (reverse) after the test.
The wrist blood pressure uses a 24V DC power supply since the drive motor is a 24V permanent magnet DC motor. After connected to the power supply, the motor rotates and will be decelerated due to the planetary gearbox. A nut is fixed on the inner tube. After the screw rotates, the nut will move forward and backward on the screw, so will the inner tube. By switching the positive and negative poles of 24V DC, the motor will rotate in the forward or reverse direction, thereby realizing the stretch/retract (elastic) of the wrist blood pressure monitor.
Wrist blood pressure monitors have stable test performance, but there will be a “buzzing” noise during use. ZHAOWEI gearbox for blood pressure monitor is made of POM material, and the noise of the product will be reduced due to the self-lubrication of POM material.
The wrist blood pressure monitor has good market potential. However, the service life will be a big concern. To improve the service life and product quality of the product, ZHAOWEI used kinematics simulation to verify the smoothness and local interference of the gear pairs during the gearbox design stage. At the same time, the finite element analysis technology is used to analyze and check the tooth surface strength of spiral teeth and bevel gears. Cavity pressure technology is used to detect changes in cavity pressure during injection molding and monitor product quality.
Blood Pressure Monitor
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