TI血压监视器解决方案

Design Considerations

The blood pressure monitor can use Korotkoff, Oscillometry, or Pulse Transit Time methods to measure blood pressure. It employs a pressure cuff, pump, and transducer to measure blood pressure and heart rate in three phases: Inflation, Measurement, and Deflation. It includes an LCD, selection buttons, memory recall, power management, and USB interface.

The core subsystems include:

Processor/Memory - The digital pressure measurement and heart rate are performed by the microprocessor. Measurements results are stored in EEPROM or FLASH memory as a data log that can be uploaded to a PC via USB.
User Interface - allows user to control the pressure measurement process and read the results on LCD display.
Sensor Interface - allows the processor to control the cuff inflation/deflation and sense blood pressure which is amplified by instrumentation amplifiers and digitized by the A/D.
Power Conversion - converts input power from the alkaline battery to run various functional blocks.