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Pressure stabilizing method for respirator fan

A ventilator and fan technology, applied in the field of fan voltage stabilization, can solve the unavoidable open-loop control inaccuracy and other problems, and achieve the effect of avoiding pressure oscillation and overcoming inaccuracy

Inactive Publication Date: 2018-06-29
HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This reference document provides an open-loop control method for ventilator fans, which can reduce the possibility of pressure oscillations, but still cannot avoid the inaccuracy of open-loop control itself

Method used

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  • Pressure stabilizing method for respirator fan
  • Pressure stabilizing method for respirator fan
  • Pressure stabilizing method for respirator fan

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Embodiment Construction

[0060] The invention will be further described below in conjunction with the embodiments and accompanying drawings, but they are not used to limit the scope of the invention.

[0061] Such as Figure 1-3 As shown, the present invention provides a method for stabilizing the pressure of a ventilator fan, which specifically includes the following steps:

[0062] S1. Establish and optimize the fan constant speed line cluster

[0063] S11. Set the fan starting speed R 0 , in this example R 0 =1000r / min; measure the corresponding flow rate F when the fan speed is fixed at 1000r / min with different output pressure P, for example: when the output pressure is 1cmH2O, it corresponds to 50LPM flow rate, and when the output pressure is 4cmH2O, it corresponds to 5LPM flow rate; The flow F is the abscissa, and the output pressure P is the fan constant speed line on the ordinate. At any position on this curve, the fan speed is the same ( figure 1 hint);

[0064] S12. In this embodiment, ...

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Abstract

The invention provides a pressure stabilizing method for a respirator fan. The pressure stabilizing method includes the steps that a fan constant rotating speed line cluster is established and optimized; then, in combination with a control algorithm, a target rotating speed Rd which the respirator fan needs to reach finally after regulation is obtained; finally, the rotating speed is converted into current through a rotating speed-current formula to achieve pressure stabilizing control over the fan. By means of the pressure stabilizing method for the respirator fan, output pressure can be restored to be within an error pressure range allowed by a target value needing to be output in a short time; the output pressure of the respirator fan can be quickly and precisely regulated to be withinthe error range allowed by the target pressure, pressure oscillation caused by a PID control method is avoided, and the imprecision of open-loop control can be overcome.

Description

technical field [0001] The invention relates to a method for stabilizing a fan, in particular to a method for stabilizing a fan for a ventilator. Background technique [0002] In modern clinical medicine, the ventilator, as an effective means of artificially replacing the spontaneous ventilation function, has been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support treatment and emergency resuscitation. It occupies a very important position in the field of modern medicine. Ventilator is a vital medical equipment that can prevent and treat respiratory failure, reduce complications, save and prolong the life of patients. [0003] A ventilator is a medical device designed to output air at a certain pressure or flow rate to assist patients with respiratory insufficiency or who cannot breathe spontaneously due to special circumstances. The motor-driven turbo blower is the main component of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/08
CPCA61M16/08A61M2205/3334A61M2205/3341
Inventor 戴征陈宁王辉黄皓轩
Owner HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD
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