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Oxygen concentration adjusting device and method thereof

A technology for adjusting device and oxygen concentration, applied in the direction of respirator, etc., can solve the problems of complex control algorithm, high cost, large flow rate of proportional valve, etc., and achieve the effect of simple control algorithm

Active Publication Date: 2008-11-26
BEIJING AEONMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the flow rate of the proportional valve is large and the cost is high. It is difficult to completely synchronize the flow of oxygen input by the proportional valve with the flow of air compressed by the piston, and the control algorithm is complicated.

Method used

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  • Oxygen concentration adjusting device and method thereof
  • Oxygen concentration adjusting device and method thereof
  • Oxygen concentration adjusting device and method thereof

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Embodiment Construction

[0031] How to create and use the presently preferred embodiment is discussed in detail below. It should be appreciated, however, that the present invention provides many applicable innovative concepts, which can be embodied in a wide variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention, and are not intended to limit the scope of the invention.

[0032] Fig. 1 shows a schematic diagram of an oxygen concentration adjusting device according to the present invention. The oxygen concentration regulating device comprises: a pressure stabilizing valve 1; a cylinder 2, in which oxygen and air are mixed; an oxygen feed pipeline 3, and the pressure stabilizing valve 1 is connected with the cylinder 2 by an oxygen supply pipeline 3; Supply pipeline 6, be connected with this cylinder 2; Air-oxygen mixed gas discharge pipeline 10, one end of this mixed gas discharge pipeline 10 is connected with this...

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Abstract

The invention relates to an oxygen concentration regulating device, in particular to the oxygen concentration regulating device in an electric pulmotor, the oxygen concentration regulating device comprises: a pressure stabilizing valve; a pneumatic cylinder; an oxygen feed pipeline; the pressure stabilizing valve and the pneumatic cylinder are connected with each other by utilizing the oxygen feed pipeline; an air feed pipeline is connected with the pneumatic cylinder; one end of an air-oxygen mixed gas discharge pipeline is connected with the pneumatic cylinder, and the other end is introduced to a patient; wherein, at least two electromagnetic valves which are connected in parallel are arranged between the pressure stabilizing valve and the pneumatic cylinder, and the electromagnetic valves are used for regulating the oxygen feed amount. In addition, the invention further relates to an oxygen concentration regulating method.

Description

technical field [0001] The invention relates to an oxygen concentration regulating device, in particular to an oxygen concentration regulating device in an electric ventilator. In addition, the present invention also relates to a method for adjusting the oxygen concentration. Background technique [0002] The oxygen concentration adjustment method generally adopts two proportional valves to control one line of oxygen and one line of air respectively, and after calculating the respective flow rates, they are merged into the patient's inhalation pipeline. It is mainly used for pneumatic and air-controlled therapeutic ventilators. Domestic electric ventilators do not have the function of automatic oxygen concentration adjustment. The imported models of the same type generally use proportional valves to control the input of a predetermined amount of oxygen mixed with air. A certain oxygen concentration controls the flow rate of the two gases respectively, here the flow control...

Claims

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Application Information

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IPC IPC(8): A61M16/00
Inventor 王军金文贤李敬辉
Owner BEIJING AEONMED
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