Multi-mode continuous blood pressure measurement device and self-calibration method thereof

Abstract

The invention discloses a multi-mode continuous blood pressure measurement device. The multi-mode continuous blood pressure measurement device comprises an electrocardio acquisition module used for acquiring electrocardio signals, an oscillography blood pressure acquisition module used for acquiring BP and a pulse wave acquisition module used for acquiring pulse wave signals. The multi-mode continuous blood pressure measurement device is characterized by further comprising a microprocessor used for processing the signals acquired by the electrocardio acquisition module, the oscillography blood pressure acquisition module and the pulse wave acquisition module, a first three-dimensional movement sensor is arranged in the electrocardio acquisition module, a second three-dimensional movement sensor is arranged in the oscillography blood pressure acquisition module, and the first three-dimensional movement sensor and the second three-dimensional movement sensor both comprise a three-dimensional acceleration sensor and a gyroscope. The invention further discloses a self-calibration method of the multi-mode continuous blood pressure measurement device.

Description

technical field [0001] The invention relates to a blood pressure measuring device, in particular to a multi-mode continuous blood pressure measuring device and a blood pressure self-calibration method when using the measuring device. Background technique [0002] Blood pressure is one of the important parameters of the human body, which reflects the lateral pressure caused by the blood circulating in the human body to the vessel wall per unit area in the blood vessel. Hypertension has become one of the most common cardiovascular diseases in the world, and it is also one of the "three highs" that my country focuses on prevention and control. The most effective way to prevent and control high blood pressure is continuous blood pressure testing. The current commonly used ambulatory blood pressure detection is not a real continuous detection, but an intermittent blood pressure detection. This method is based on the oscillometric method, where the blood pressure is measured at ...

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Problems solved by technology

Another example is the patent with the application number 201310072380.5 titled "Interference Suppression System and Interference Suppression Method for Sphygmomanometer Measurement". An acceleration signal is added to the traditional cuff-type sphygmomanometer, and the interference is suppressed by extracting the attitude signal. This method needs to input information such as the height and arm length of the subject during the calculation process, which is relatively complicated

The application of three-axis acceleration information is also relatively simple. It only calculates the acceleration in space, and the actual test effect is not good.

[0006] In summary, the PWTT method has great advantages over the traditional oscillometric electronic sphygmomanometer in terms of principle and operation, but there is still no clinically used PWTT-based continuous blood pressure measurement equipment, mainly due to individual differences 1. The attitude control and usage method of the subject during the measurement lead to an unstable relationship between PWTT and ambulatory blood pressure values, so that the accuracy and reliability of the blood pressure values ​​obtained by the PWTT method are not high enough

The measurement error caused by the abnormal use of the subject also occurs in the use of the traditional oscillometric electronic sphygmomanometer, so when the hospital diagnoses the disease, the patient must be re-measured

This "medical conformity", that is, the non-professional nature of the measurement process, is also one of the reasons why telemedicine is difficult to achieve

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