Control method and system of breathing machine

A control method and technology of the control system, applied in the direction of respirator, etc., can solve the problems of not achieving human-machine synchronicity, not fully considering the breathing state, etc.

Active Publication Date: 2014-01-08
SUN YAT SEN UNIV
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AI Technical Summary

Problems solved by technology

The air supply status of a person is simply judged by the flow pressure signal collected from the flow pressure sensor at the air supply end. In fact, the air supply strategy provided by this solution does not fully consider the breathing state of the person in each sleep stage from waking up to falling asleep. Different, has not yet reached the real man-machine synchronization

Method used

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  • Control method and system of breathing machine
  • Control method and system of breathing machine
  • Control method and system of breathing machine

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Embodiment Construction

[0042] The list of symbols used in the drawings or text is:

[0043] 1. Setting module, 2. Motor power amplifier, 3. Sensor, 4. Microcontroller, 5. Air filter, 6. Blower, 7. Nasal mask, 8. Transmission pipe, 9. Human, 10. Outside air , 11, air vent.

[0044] The present invention will be further described below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0045] Such as image 3 As shown, a control method for a ventilator includes the following steps:

[0046] S1. collect inhalation and exhalation signals through sensors;

[0047] S2. According to the collected inspiratory and exhalation signals, the microcontroller uses an autocorrelation method to calculate the respiration rate, and deduces the current sleep state according to the correlation between the respiration rate and the sleep period;

[0048] S3. The microcontroller outputs the current sleep state, and the ventilator supplies air according...

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Abstract

The invention discloses a control method and system of a breathing machine. The control method includes the following steps that a sensor collects inhaling and exhaling signals; according to the collected inhaling and exhaling signals, a microcontroller calculates the respiratory rate according to a self-correlation method and the current sleeping state is derived according to correlation of the respiratory rate and a sleeping period; the microcontroller outputs the current sleeping state and the breathing machine supplies air with corresponding force and rhythm according to the sleeping state so as to achieve man-machine synchronization. A control system of the breathing machine comprises a set module, a motor power amplifier, a sensor and a microcontroller. The output end of the set module is connected with the input end of the microcontroller. The output end of the sensor is connected with the input end of the microcontroller. The output end of the microcontroller is connected with the input end of the motor power amplifier. The control system of the breathing machine controls the breathing machine to supply air by being combined with the physiological status of a person in a sleep period (an awake period, a light sleep period, a deep sleep period and an REM period) and the breathing physiological need is met.

Description

technical field [0001] The invention relates to the field of ventilator control technology and medical device ventilator control, in particular to a ventilator control method and a control system thereof. Background technique [0002] Synchronous air supply control between the ventilator and human breathing means that the air supply of the ventilator is consistent with the breathing demand of the human, that is, the air supply cycle of the ventilator (inhalation start time, inhalation duration, inhalation and exhalation switching time and the duration of exhalation) and the intensity of assistance must be consistent with the breathing cycle of human breathing needs and the degree of central inspiratory demand, otherwise there will be mutual influence between the human and the ventilator, and the man-machine will be out of sync, which will increase the breathing work of the person , Respiratory muscle damage, reduced adjuvant therapy effect, exacerbation of dyspnea and other ...

Claims

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Application Information

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IPC IPC(8): A61M16/00
Inventor 蒋庆张彦军罗语溪邹科举王宏杰梁九兴
Owner SUN YAT SEN UNIV
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