MSP430 based electron sphygmomanometer

Abstract

A MSP430 based electron sphygmomanometer is simple and convenient in operation, high in measuring precision, and strong in individual adaptability; the MSP430 based electron sphygmomanometer employs inflation process measurement, is fast in venting speed, thus shortening measuring time, and improving user measuring comfort level; the MSP430 based electron sphygmomanometer comprises a microcontroller; structural main points are that an microcontroller input end is connected with an undervoltage detection circuit, a blood pressure signal detection circuit and a keyboard; a microcontroller output end is connected with an LCD display module, a buzzer alarm module, and an inflation / venting control circuit; the output of the inflation / venting control circuit is connected with an input end of the blood pressure signal detection circuit; the blood pressure signal detection circuit, the microcontroller and the inflation / venting control circuit form a loop.

Description

technical field [0001] The invention belongs to the field of medical detection equipment, in particular to an electronic sphygmomanometer based on MSP430. Background technique [0002] With the continuous improvement of people's living standards and the increase of the aging population, people's awareness of self-care is gradually increasing, and the trend of home-based medical testing equipment is becoming more and more obvious. Among them, the household electronic sphygmomanometer is one of the typical household medical testing equipment. [0003] Blood pressure is one of the most important indicators reflecting the hemodynamic state, and it is also an important basis for clinical diagnosis of diseases. Therefore, measuring blood pressure is of great significance. At present, the principles of blood pressure measurement are mainly auscultation and oscillometric methods. Based on the above two principles, there are currently three commonly used sphygmomanometers as follows...

AI Technical Summary

Problems solved by technology

[0005] However, mercury sphygmomanometers have two disadvantages: 1. Mercury used to display blood pressure readings is a toxic heavy metal. Mercury leakage is a common failure of mercury sphygmomanometers, especially in hospitals where mercury sphygmomanometers are intensively used, which seriously threatens patients and doctors. personnel health

The accuracy of blood pressure measurement with mercury sphygmomanometers will also be affected due to the existence of common problems such as mercury column disconnection and foaming, zero inaccuracy, and air leakage.

2. The accuracy of the mercury sphygmomanometer is affected by the position of the mercury column

However, it is difficult to strictly follow the above requirements in actual use.

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