Purpose To design an electrically powered tourniquet which has more advantages than the conventional ones such as small size, air pressure and operating time auto matically controlled. Method The MCU of MSP430 series is the core of the control system, by which the electrically powered tourniquet is inflated/deflated intelligently when pressure in the tourniquet is monitoring. The pressure sensor uses MPX 5050 and the pump adopts GAST oilfree mini air compressors made in US. Conclusion The tourniquet is smaller, more portable, inflated/deflated quickly, which can monitor the pressure, control the air time and pressure, and even possess the preset inflating time and alarm functions.
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