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One-way valve, ventilator and nasal high-flow oxygen therapy device

A one-way valve and valve core technology, applied in respirator and other directions, can solve problems such as leakage and unsatisfactory check effect of one-way valve, achieve reliable one-way check effect and improve work reliability.

Active Publication Date: 2022-05-17
XIAONIU HEALTH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the one-way valve in the related art can realize the one-way non-return function in the air flow of higher pressure, but the phenomenon of leakage will occur in a certain low-pressure air flow environment
Therefore, from the perspective of one-way cut-off air flow, the non-return effect of the one-way valve in the related art is not ideal

Method used

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  • One-way valve, ventilator and nasal high-flow oxygen therapy device
  • One-way valve, ventilator and nasal high-flow oxygen therapy device
  • One-way valve, ventilator and nasal high-flow oxygen therapy device

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Embodiment Construction

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0035] Refer below Figure 1-Figure 4 A check valve 100 according to an embodiment of the present invention is described. The one-way valve 100 can be used in medical equipment.

[0036] refer to Figure 1-Figure 4 According to the embodiment of the first aspect of the present invention, the one-way valve 100 includes: a bracket 1 and a flexible membrane 2, the flexible membrane 2 is sleeved on the bracket 1, the bracket 1 supports the flexible membrane 2, and the bracket 1 includes Connected valve seat 11 and valve core 12, between t...

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Abstract

The invention discloses a one-way valve, a ventilator and a nasal high-flow oxygen therapy device. The one-way valve includes a bracket and a flexible diaphragm. The bracket includes a connected valve seat and a valve core. A channel suitable for air flow is defined between the valve seat and the valve core. The channel has an air inlet and an air outlet. The groove, the flexible diaphragm is sleeved on the bracket, the flexible diaphragm includes a fixed part and a movable part connected, the fixed part is sleeved on the valve seat, and the movable part is movably sleeved on the valve core to open and close the air outlet , the free end of the movable part is adapted to fit in the groove. According to the one-way valve of the embodiment of the present invention, it is possible to prevent the side air flow from interfering with or blowing up the free end of the flexible membrane under low-pressure air flow, so that the one-way anti-return function of the one-way valve can be realized more reliably.

Description

technical field [0001] The invention relates to the field of valve devices, in particular to a one-way valve, a ventilator and a nasal high-flow oxygen therapy device. Background technique [0002] The one-way valve realizes the function of one-way non-return in the pipeline. For example, in medical devices such as nasal high-flow oxygen therapy devices and ventilators, there are usually two gas paths of air and oxygen. The gas flows out of the gas path, and finally merges into a mixed gas with a certain oxygen concentration for use by the patient. In order to ensure the precise ratio of the mixed gas, a one-way valve will be set in the gas circuit before mixing to prevent the backflow of gas. However, the one-way valve in the related art can realize the function of one-way non-return in a relatively high-pressure airflow, but leakage will occur in a certain low-pressure airflow environment. Therefore, from the perspective of one-way blocking air flow, the non-return effec...

Claims

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Application Information

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IPC IPC(8): A61M16/20A61M16/00
CPCA61M16/208A61M16/00A61M16/0003
Inventor 刘金伟颜辉
Owner XIAONIU HEALTH CO LTD
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