Pulse sensor capable of calibrating static force and pulse collection device

Abstract

The invention discloses a pulse sensor capable of calibrating static force and a pulse collection device equipped with the pulse sensor. The pulse sensor capable of calibrating static force comprises a static force sensor, a dynamic force sensor and a buffer module, wherein the static force sensor is used for measuring pressure applied to a human to-be-detected part by the pulse sensor in the pulse-taking process; the dynamic force sensor is used for measuring dynamic force during pulse beating in the pulse-taking process; and the buffer module is connected with the dynamic force sensor and / or the static force sensor and is used for reducing interference of external jitter on pulse-taking measurement and preventing offset of the measuring position. According to the invention, the pulse information can be acquired in an all-around manner, and capabilities of performing high-sensitivity dynamic force detection, performing accurate static force measurement and acquiring three-dimensional haptical information are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and in particular relates to a pulse condition sensor and a pulse condition acquisition device capable of calibrating static force. Background technique [0002] Pulse diagnosis is an important technique in TCM diagnosis. The pulse method of traditional Chinese medicine has been passed down for thousands of years and has accumulated a lot of valuable experience. Some highly skilled Chinese medicine practitioners can accurately obtain information such as the patient's physique, the condition of the internal organs, and the degree of illness by virtue of the pulse-taking technique, so as to prescribe the right medicine. Modern medicine believes that blood flowing through the internal organs of the human body will inevitably carry a large amount of information about the internal environment of the human body. [0003] A pulse monitor is a device that can collect information on pressure...

AI Technical Summary

Problems solved by technology

[0008] The patent application CN201420444501 proposed for the first time a pulse collection device combined with multiple types of pressure sensors, which uses a piezoelectric sensor to measure pulse information and a piezoresistive sensor to measure static force. However, the piezoresistive sensor described in this application has no strain The measurement repeatability of structure and static force is poor, it is difficult to achieve accurate calibration, and the measurement of static force cannot meet the high accuracy and standardized measurement required by medical devices

In addition, piezoresistive sensors are made of semiconductor materials, which are greatly affected by temperature, and temperature compensation must be performed when using them.

At the same time, the pulse collection device of this application cannot obtain three-dimensional pulse information

[0009] In addition, during the pulse acquisition process, the collected signal is a contact pressure signal. Since the subject cannot remain still for a long time during the pulse acquisition process, the pressure brought into the wrist by the subject's body posture adjustment Any weak jitter is very likely to cause the sensor probe to shift or break away from the tested point, resulting in a large deviation in the measurement results

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