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Breathe rhythm sensor

A respiratory rhythm and sensor technology, applied in the evaluation of respiratory organs, etc., can solve problems such as discomfort, temperature sensing type is easily affected by environmental temperature changes, body position change interference, etc.

Inactive Publication Date: 2004-06-09
姬国良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the displacement sensing type is easily disturbed by the change of human body position, the temperature sensing type is easily affected by the change of ambient temperature, and the pneumatic switch inserted into the nostril will make people feel uncomfortable.

Method used

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Examples

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Embodiment Construction

[0008] As shown in FIG. 1 , the structure of the respiratory rhythm sensor includes an elliptical or rectangular (in this example, a rectangular for drawing convenience) frame 1 . The frame is closed around and formed into a barrel shape, with upper and lower openings. When in use, the upper mouth faces the nostrils of people. When breathing, the airflow passes through the space in the frame up and down. In the middle of the frame, a diaphragm 2 that is slightly smaller than the frame inner hole is placed around. One end (A-B) of the diaphragm is fixed to one side wall of the frame, and the other end (C-D) is cantilevered. When breathing, the cantilever end of the diaphragm is driven to swing by the airflow up and down. Some ventilation holes are opened on the diaphragm to increase the ventilation of the frame and the sensitivity of the diaphragm. A knife-shaped shading film 3 perpendicular to the plane of the diaphragm is installed at the cantilever end of the diaphragm. W...

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Abstract

The present invention relates to a human respiratory rhythm sensor. It includes frame, pneumatic diaphragm, photoelectric switch and electronic circuit. Said frame is made into cylinder shape, its upper end and lower end are opened, and its upper opening is aligned with nostril. When the person breathes through nostrils, the breath flow can be up-down reciprocally passed through the space in the frame, and the pneumatic diaphragm is mounted in the internal centre of the frame, one end of the diaphragm is fixed, and another end is up-down reciprocally swung. The blade light-intercepting plate on the diaphragm is inserted into the recessed groove of photoelectric switch, said switch can detect the swing of the diaphragm, and can output the respiratory rhythm signal by means of electronic circuit.

Description

technical field [0001] The invention relates to a human body breathing rhythm sensor, in particular to a sensor for detecting the state of the airflow in or out of the nostrils when a person breathes. Background technique [0002] In the field of human research and medical monitoring, it is often necessary to detect the breathing state of the subject. There are three kinds of respiration sensors currently seen: displacement sensing type, temperature sensing type and pneumatic switch type. The displacement sensing type uses a pressure sensitive device to detect the displacement change of a person's abdomen or chest during breathing. The temperature sensing type uses a thermocouple to detect the temperature change of the airflow in and out of the nostril when the person breathes. The air switch is blown by the breathing airflow. Move the switch inserted into the nostril. They have their own characteristics and are suitable for use in different...

Claims

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Application Information

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IPC IPC(8): A61B5/08
Inventor 姬国良
Owner 姬国良
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