Wireless products

With the research and development of today's healthcare technology, remote patient monitoring and diagnosis will replace doctors' consultation to a certain extent in the future. A wearable device as small as a patch can be used to measure vital signs and may even be treated. Making this a reality relies on a series of sensors, low-power microprocessors, and embedded security technologies that protect all sensitive data collected and transmitted.

Medical Health Application Of IOT


The detection scheme improves people’s quality of life by monitoring various health parameters, such as heart rate, blood oxygen level, and blood pressure. The amplitude of the output signal of the human body sensor is in the range of millivolts and microamps. Integrated devices for wearable health applications combine sensors with amplifying functions and conversion circuits into a single die or package. These small-size, high-precision solutions provide higher-amplitude analog outputs or serialized digital outputs.

Deal With

Power usage and processing power are important selection criteria for microprocessing applications. In order to determine which system functions are best integrated into the microcontroller and which functions can be handled externally, the most effective way is to adopt a system partition strategy. Because wearable health devices read human signals, all on-chip analog circuits must be considered to ensure that low-level signals can be processed with high accuracy.

Power Supply

Given the miniaturization of health monitoring systems-such as medical patches and other wearable devices-low power consumption and long battery life are critical. The power supply system in these devices must be able to regulate the output voltage of the battery—the battery is a voltage source whose voltage output gradually decreases. The efficiency of the regulator must be high enough to maximize the use of power, and all voltage rails required by the design must also be provided. The available voltage range for rechargeable Li + batteries is 4.2V to approximately 3.2V. Most wearable products use a main power supply that is lower than the minimum voltage of a single Li + battery, so the main power supply is generally provided by a buck regulator. Some functions in wearable products may require a higher voltage than that provided by a single battery, so the power management function must include at least one boost regulator. The number of voltage rails required depends on the device, but to maximize efficiency, it is best to minimize the total number of voltage rails.


Sensitive personal data collected and transmitted by wearable devices and medical systems must be protected to prevent increasingly common security vulnerabilities. Maxim’s embedded security technology can effectively prevent tampering, cloning, counterfeiting and other malicious attacks.

Wireless Fingertrip Pulse Oximeter


  • -High brightness LEDs display SpO₂, PR, and pulse bar
  • -Low battery indication
  • -Automatically power off
  • -Bluetooth 4.0 for data transmission
  • -Weak or unstable signal prompt provides more accurate measurements

Wireless Continuous Thermometer


  • -Compact design, easy to use
  • -Using the medical silicone, comfortable to wear
  • -Support more than 600 hours of measurements
  • -Bluetooth 4.0 with low energy technology Irregular temperature alarm

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A leading hypoxia research laboratory compared accuracy in motion between a itsoug Medical pulse oximeter with itsoug® technology and a competing pulse oximeter. Hypoxia was induced in 13 subjects using an industry standard breathe-down protocol, and motion was generated using a mechanical fixture with tapping and rubbing. SpO2 values were compared to CO-oximetry analysis of arterial blood samples. itsoug precision was ±2.1; competitor technology precision was ±14.4.1

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