Device and method for measuring heart rate and blood pressure

A technology for measuring devices and heart rate, applied in cardiac catheterization, vascular assessment, etc., can solve the problems of limited product and market performance, poor reliability of blood pressure data, limited applicable population, etc., to prolong online working time, expand user population, and light weight Effect

CN106137161AInactive Publication Date: 2016-11-23刘红超
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-11-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a device and a method for measuring heart rate and blood pressure of a living body based on a pulse wave sensor and a fluid pressure sensor. The device comprises a fluid containing module, a pulse sensing module, a pressure sensing module, an electric signal processing module, a control module and an electric signal transmitting module. The pulse sensing module and the pressure sensing module are controlled by the control module and synchronously acquire pressure information of the fluid in the fluid containing module according to a certain frequency and time sequence. The control module analyzes the obtained time sequence arteriopalmus information and pressure information, and obtaining physiological information such as heart rate and blood pressure. According to the device and the method, simple method for acquiring heart rate and blood pressure information and high reliability of the device are realized; heart rate and blood pressure information of the living body can be quickly and instantly determined in an online manner; and the device and the method can be widely used on wearable devices and online monitoring equipment.
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Description

technical field

[0001] The present invention relates to sensing technology and physiological parameter analysis and measurement technology, in particular to the testing technology for extracting biological heart rate, arterial blood pressure and other parameters based on pressure sensor and pulse sensor information, especially through online acquisition of pressure sensor and pulse sensor The information can continuously obtain physiological parameters such as heart rate and blood pressure, so as to determine the physiological parameters of the tested organism at any time and any place, and understand the health status of the organism in real time. The pressure sensor senses the pressure change of the fluid produced by the arterial pulsation of the living body, and the pulse sensor senses the pulse wave generated by the arterial pulsation. By analyzing the data obtained by these two sensors, the heart rate and blood pressure of the living body can be determined. The present in...

Examples

Embodiment 1

[0065] Figure 5 The invention relates to a device and method for measuring heart rate and arterial blood pressure based on wrist pulse waves. In order to reduce the sensitivity and irritation of the human body attached to the skin, this embodiment uses an airtight airbag made of reinforced natural rubber, and the fluid is a fluid storage device made of pre-flush air, and the preset air pressure is 1 Atmospheric pressure plus 90mmHg. The differential pressure gas pressure sensor is used as the core device of the fluid pressure sensing module to measure air pressure and small changes in air pressure caused by arterial pulsation. The pressure sensing module has a built-in preamplifier to amplify the signal to improve the anti-interference ability of the signal during transmission. The pulse sensing device adopts a piezoresistive pressure pulse sensor, which is placed at the junction of the radial artery to obtain the pressure change of the skin tissue caused by the pulse. The...

Embodiment 2

[0068] Image 6 The present invention is applied to the earlobe, and the heart rate and blood pressure are determined by measuring the arterial pulse of the arterial capillaries in the earlobe. In order to adapt to the shape of the earlobe, the shape of the device is designed as a shell, and the inside is lined with an air capsule made of transparent airtight nylon material as a fluid storage device. The initial air pressure is one atmospheric pressure plus 80mmHg. The pulse sensing device here adopts a digital photoelectric blood volume pulse sensor, and the signal does not need DA conversion. The pulse sensor is placed inside the air bag and transmits and receives light signals through the nylon layer. The operating frequency of the pulse sensor and the pressure sensing device are both set to 200Hz. The power supply adopts button battery. Other configurations and data processing methods are the same as the implementation example 1.

[0069] The present invention can be w...