Oronasal airflow respiration sensor

Abstract

The invention relates to an instrument which can monitor, record and analyze frequency, intensity and the time ratio of exhaling and inhaling of human body respiratory movement, and has a function of an MP3 player. An oronasal airflow respiration sensor and a thoracoabdominal respiration sensor are adopted to respectively monitor respiration airflow at the position of the oronasal of the body and thoracoabdominal respiration movement changes, and therefore respiration data of the body can be overall gathered. After analog-digital (A / D) conversion, the respiration data are digitized. With a central processing unit (CPU) as a core, the functions such as analyzing, storing, displaying and transmission of the respiration data and an apnea warning function are achieved. Meanwhile, the function of the MP3 player is added, a nervous mood of a to-be-monitored person is alleviated to a certain degree by playing music, and the objectivity of respiratory monitoring is improved. Furthermore, a wireless technology and an internet technology broaden the usable range of the respiration monitor, so that a patient can self-monitor in the home, and contacting between the patient and a hospital and an emergency center can be convenient and fast.

Description

technical field [0001] The invention relates to a sensor for measuring the respiratory movement waveform of the mouth, nose, and airflow of a human body developed by utilizing the giant stress impedance effect of amorphous wires. It belongs to the technical field of medical monitoring. Background technique [0002] With the development of science and technology and the progress of society, the use of monitoring instruments for human mouth, nose, airflow and respiratory movement is also constantly increasing. At present, there are four main types of sensor sensitive materials used for respiratory movement monitoring of oronasal airflow: the first category uses thermal elements to monitor changes in oronasal airflow. The second type adopts the moisture sensitive element to monitor the variation of oronasal airflow. The third category uses piezoresistive elements to monitor changes in oronasal airflow. The fourth category uses piezoelectric elements to monitor changes in oro...

AI Technical Summary

Problems solved by technology

The first type of device and the second type of device are easily affected by ambient temperature and humidity, and have higher requirements for the monitoring environment

The third and fourth types of devices are limited by the sensitivity of sensitive materials. They are large in size and high in cost. Moreover, the rubber heat-shrinkable sleeves are placed under the nostrils and in the mouth, which makes the subject's face feel obvious foreign body sensation, so it is not easy to use Comfortable

Existing respiratory sensors have a complex structure, so the cost is high, it is not conducive to one-time use, and the disinfection and storage are complicated

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