Patent acquiring blood pressure measurement with Apple Watch -Measured only with sensors without using cuffs
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twitter@iPhoneMania_jp からのツイート2021年1月6日08時00分読了まで 約 2分17秒Appleが2021年1月5日、米国特許商標庁（USPTO）にて、カフ（血圧測定時に装着する空気袋）を使用せず、Apple Watch単体で血圧測定を実現し得る特許を取得しました。New patent for blood pressure measurement with Apple Watch
Apple's patent acquired this time, "Devices and systems for modifying errors at blood pressure measurement", when calculating blood pressure using a band equipped with an ultrasonic transducer, pressure sensor, and actuator.The mechanism to correct the error is described.Figure 11 above depicts a configuration for calculating the surroundings of the wrist using the Apple Watch band.Figure 12 shows the arteries (1201) and the ultrasonic transducer (1210) to measure the depth from the body table.The ultrasonic transducer is installed in the Apple Watch band (1202).The approximate mechanism of the blood pressure measurement method described in this patent is the actuator (1406) drawn in Figure 14, monitoring the movement of the wrist during blood pressure measurement, determines the correction coefficient, and pressure sensor (1408).The average arterial pressure is to be calculated using the correction coefficient to calculate the average arterial pressure.The size and number of sensors that can be mounted on the Apple Watch are limited, bones and tendons may be located between the artery and the body surface, and the wrist moves during measurement.Because of the fact, it seems important to modify excess elements and errors in the arterial pressure measured by the pressure sensor.
Multiple patents have been obtained regarding blood pressure measurement on wearable devices
Apple has also acquired a patent for blood pressure measurement that does not use cuffs, and a "blood pressure measurement by pulse transmit time) for a patent for blood pressure measurement that does not use cuffs.In addition, a patent for wearable blood pressure monitor with a general blood pressure measurement method (oscillometric method) that measures the blood pressure between the expansion period and the contracting period is compressed with a wireless cuff.Apple has acquired multiple patents for blood pressure measurement alone, but it is unknown whether it will appear as a real product because these are research results and ideas.Source: USPTO VIA PATENTLY APPLEPHOTO: Hello Heart (FT729)
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