Air-oxygen mixing airway for respirator, respirator and method

A technology of oxygen mixing and ventilator, which is applied in the field of ventilator, can solve the problems of impact air flow rate, uneven mixing, safety impact of oxygen inhalation of patients, etc., and achieve the effect of protecting safety

Active Publication Date: 2016-09-07
HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Safety valve: At present, whether it is a pneumatic ventilator or an electric ventilator connected to a high-pressure oxygen source, the potential safety hazards brought by human misoperation to the patient are not considered. For example, when the oxygen source connection pressure exceeds the normal range, The high-pressure oxygen source will destroy the airtightness of the proportional valve, and the oxygen containing ultra-high pressure will directly act on the patient, directly endangering the life safety of the patient;
[0005] 2. The influence of the oxygen source on the adjustment of the oxygen concentration: the oxygen adjusted by the proportional valve is directly mixed with the air, and the oxygen flow rate will disturb the airway pressure, impact the air flow rate, cause a large air flow disturbance, and affect the accuracy of the oxygen concentration;
[0006] 3. Air-oxygen mixing structure: The current air-oxygen mixing structure does not have a mi...

Method used

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  • Air-oxygen mixing airway for respirator, respirator and method

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Experimental program
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Embodiment 1

[0092] Such as Figure 1-3 As shown, the present embodiment provides an air-oxygen mixed airway for a ventilator, including:

[0093] An anti-disturbance member and an air-oxygen mixing chamber, the outlet end of the anti-disturbance member is connected to the inlet end of the air-oxygen mixing chamber;

[0094] The anti-disturbance member includes an oxygen air channel 312 and an air air channel 311. The air air channel 311 is a cylindrical cavity with openings at both ends, and the oxygen air channel 312 is arranged around the air air channel 311, which is a ring arranged around the air air channel. shaped cavity. The left end of the oxygen gas channel 312 is closed, and the right end (that is, the oxygen outlet of the oxygen gas channel) is provided with an oxygen blocking sheet 3121, and the outside of the oxygen gas channel 312 is provided with an oxygen inlet 3122;

[0095] The oxygen airway 312 of the anti-turbulence element is connected to the oxygen airway of the ve...

Embodiment 2

[0108] as attached Figure 4 As shown, this embodiment provides a ventilator including the air-oxygen mixed airway described in Embodiment 1, specifically including:

[0109] Oxygen gas path, air gas path, air-oxygen mixing chamber 3, the air-oxygen mixing chamber 3 is provided with the air-oxygen mixed gas path described in embodiment 1; The air channel 312 is connected, and the air channel is connected with the air channel 311 of the anti-disturbance element in the air-oxygen mixture channel;

[0110] The intake end of the oxygen gas path is externally connected to a high-pressure oxygen source through the oxygen source interface 6, and the air intake end of the air gas path is connected to an external air source through the air source interface 7; the outlet ends of the oxygen gas path and the air gas path are all connected to The air-oxygen mixing chamber 3; the air-oxygen mixing chamber 3 is connected to the gas outlet pressure sensor 4 and connected to the patient inter...

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PUM

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Abstract

Disclosed are an air-oxygen mixing airway for a respirator, the respirator and a method. The air-oxygen mixing airway comprises an anti-turbulence member and an air-oxygen mixing cavity, the anti-turbulence member comprises an oxygen way and an air way, two ends of the air way are open, the left end of the oxygen way is closed while the right end of the same is provided with an oxygen barrier piece, and an oxygen inlet is arranged on the outer side of the oxygen barrier piece. The respirator comprises an oxygen way, an air way and an air-oxygen mixing chamber provided with the air-oxygen mixing airway, an oxygen miniature proportional valve, an oxygen flow sensor and an air intercepting member are arranged on the oxygen way, a fan, an air pressure adjusting valve, an air flow sensor and an air intercepting member are arranged on the air way, and opening degree of the oxygen valve is adjusted to adjust oxygen flowing speed according to oxygen concentration of mixed gas needing to be output and air flowing speed measured by the air flow sensor. The anti-turbulence member is adopted in the air-oxygen mixing airway, and can cooperate with the flow sensors which are high in accuracy and low in power consumption, and the oxygen barrier piece is utilized, so that accuracy of air-oxygen mixed gas can be improved.

Description

technical field [0001] The invention relates to an air-oxygen mixed airway for a ventilator, a ventilator and a method, and belongs to the technical field of ventilators. Background technique [0002] A variety of respiratory diseases and patients with clinical hypoxia need to be treated with a ventilator and supplemented with oxygen therapy to correct hypoxia, increase arterial oxygen partial pressure and oxygen saturation levels, and promote metabolism. The ventilator delivers oxygen-enriched pressurized flow to the patient's airway according to the treatment plan, which is the most direct and effective way to solve the oxygen uptake of these patients. [0003] At present, pneumatic ventilators with air-oxygen mixing function (air sources are all pressurized sources, such as air storage tanks) or electric ventilators (air source is electric turbines) are connected with high-pressure oxygen sources, and through pressure reducing valves, The proportional valve is used to ad...

Claims

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Application Information

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IPC IPC(8): A61M16/00A61M16/12A61M16/20
CPCA61M16/00A61M16/0003A61M16/1005A61M16/125A61M16/204A61M2016/0027A61M2016/0033A61M2016/1025A61M2205/3334
Inventor 戴征丁锦刘炜徐勤鹏李伟利
Owner HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD
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