Blood pressure automatic measuring device and method based on digital control

Abstract

The invention relates to the technical field of blood pressure detection and relates to a blood pressure automatic measuring device and method based on digital control. The measuring device comprises a volume pulse wave acquisition module, a blood pressure acquisition module and a processing module. The volume pulse wave acquisition module is used for acquiring volume pulse waves of a measured object and processing the acquired volume pulse waves to acquire pulse oximeter signals. The blood pressure acquisition module is used for acquiring blood pressure information of the measured object regularly and processing the acquired blood pressure information to acquire blood pressure digital signals. The processing module comprises a first processing unit and a second processing unit. The first processing unit is used for receiving and processing the blood pressure digital signals and transmitting the blood pressure digital signals to the second processing unit, and the second processing unit is used for extracting multiple feature points of the pulse oximeter signals and jointly carrying out fitting operation on the feature points and the blood pressure digital signals to establish a blood pressure parameter measuring model. The measuring method is achieved through the measuring device. Blood pressure is automatically and continuously measured well.

Description

technical field [0001] The invention relates to the technical field of blood pressure detection, in particular to a digital control-based automatic blood pressure measurement device and method. Background technique [0002] The pressure formed by the blood on the wall of the blood vessel caused by the heartbeat promoting blood circulation is commonly referred to as blood pressure. Blood pressure is an important physiological parameter reflecting the function of the human circulatory system. The automatic and continuous measurement of blood pressure has great practical significance in medicine. For example, in clinical medicine, continuous monitoring of blood pressure is required for critically ill patients and critically ill patients during surgery, so that once the patient has an accident, the medical staff can take effective rescue in time. measure. [0003] At present, blood pressure is mainly measured by using a sphygmomanometer or pulse wave transit time, but both of t...

AI Technical Summary

Problems solved by technology

For the method of measuring blood pressure with a sphygmomanometer, the measured blood pressure parameters cannot achieve the purpose of continuous measurement due to the influence of many factors such as the elasticity of the blood vessel wall

For the method of measuring blood pressure by using pulse wave transit time, two pulse wave sensors are usually used to simultaneously measure different parts of the same individual, identify the time difference of the same characteristic point of the two-way waveform, and obtain the pulse wave transit time, thereby Establish a blood pressure measurement model based on pulse wave transit time, but the measurement model is extremely susceptible to external interference, and the measurement model will fail during long-term measurement, and the coefficients of the model need to be re-fitted, so it is not suitable for continuous automatic blood pressure measurement

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