Breathing machine and breathing pressure regulating control system and regulating control method thereof

A control system, ventilator technology, applied in the direction of electric fluid pressure control, respirator, etc., can solve the problem that the ventilator can not effectively solve the pressure confrontation and pressure stability, and achieve the effect of maintaining abnormal changes and avoiding pressure confrontation

Inactive Publication Date: 2014-07-16
SHENZHEN DYMIND BIOTECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0007] The purpose of the present invention is to provide a ventilator and its breathing pressure control system and control method, aiming to solve the problem that the existing ventilator cannot effectively solve the pressure resistance and pressure stability under any pressure change

Method used

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  • Breathing machine and breathing pressure regulating control system and regulating control method thereof
  • Breathing machine and breathing pressure regulating control system and regulating control method thereof
  • Breathing machine and breathing pressure regulating control system and regulating control method thereof

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0042] Such as figure 1As shown, the respiratory pressure control system of the ventilator provided by the present invention includes: a pressure follower, an exhalation and inhalation discriminator, and a pressure drop-off device, and the pressure follower is divided into a first pressure follower and a second pressure follower . The first pressure follower is mainly used in the inhalation state to maintain the pressure at the set target therapeutic pressure level, and the greater the deviation between the current pressure and the target therapeutic pressure, the faster the adjustment rate. The second pressure follower is mainly used in the exhalation state to maintain the pressure at the set target therapeutic pressure level, and the ...

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Abstract

The invention discloses a breathing machine and a breathing pressure regulating control system and regulating control method thereof. The breathing machine comprises pressure followers, an inhale and exhale judging device and a pressure fast-reducer, and the pressure followers are classified into a first pressure follower and a second pressure follower. Firstly, the inhale and exhale judging device detects current flow change, when exhale is changed into inhale, rotating speed of a motor is increased through the first pressure following device, pressure is maintained at the level suitable for inhale; secondly, when the inhale and exhale judging device detects that flow is in a period of an inhale end and an exhale beginning, the pressure fast reducer brakes the motor, and the pressure is fast reduced; finally, when the pressure is reduced to approach the exhale level, braking is stopped, the reducing rate is reduced through the second pressure follower, and the pressure is stably reduced to the pressure level suitable for exhale. The breathing machine is not only suitable for controlling the pressure in a breathing cycle in the breathing machine, but also can be used for other pressure regulating occasions of air leakage pressure compensation, automatic altitude pressure compensation and the like.

Description

technical field [0001] The invention relates to medical equipment, in particular to a ventilator and its breathing pressure control system and control method. Background technique [0002] When a person is using a ventilator, inhalation will generate negative chest pressure and cause the pressure at the mask to drop; exhalation will generate positive chest pressure and cause the pressure at the mask to rise. Fluctuations in pressure during the breathing cycle create respiratory resistance, and pressure adjustments are required to cope with these fluctuations. Under certain environmental conditions, if a leak occurs, the pressure will decrease; if a blockage occurs, the pressure will rise; at different altitudes, the pressure will also be different. When the pressure deviation is too large, the treatment effect will be affected . In addition, when a person exhales, the positive pressure generated by the chest cavity conflicts with the continuous positive pressure output by ...

Claims

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Application Information

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IPC IPC(8): A61M16/00G05D16/20
Inventor 沈翰宁
Owner SHENZHEN DYMIND BIOTECH
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