Oxygen adjusting and controlling device for respirator

Abstract

The invention discloses an oxygen adjusting and controlling device for a respirator. The oxygen adjusting and controlling device comprises a base, a high-pressure oxygen input assembly, a pressure adjusting valve, a proportional valve, a flow sensing output assembly, a low-pressure oxygen connector, an oxygen pressure measuring assembly and an atomizer output assembly, wherein high-pressure oxygenis inputted through the high-pressure oxygen input assembly, and then is adjusted by the pressure adjusting valve to be low-pressure oxygen; and the low-pressure oxygen flows in three paths: the first path of the low-pressure oxygen is subjected to flow adjusting by the proportional valve and the addition of external low-pressure oxygen which is inputted by the low-pressure oxygen connector, andis outputted by the flow sensing output assembly; the second path of the low-pressure oxygen is subjected to pressure measurement through the oxygen pressure measuring assembly; and the third path ofthe low-pressure oxygen is outputted to an external atomizer through the atomizer output assembly. According to the oxygen adjusting and controlling device for the respirator disclosed by the invention, the components are arranged on the base to form a highly-integrated integral module; and the components are in communication through channels in the base, and hoses are not needed for connection, so that the assembling, the adjusting and the maintaining are convenient and time-saving, the maintaining efficiency is improved, and the maintaining cost is reduced.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an oxygen adjustment control device for a ventilator. Background technique [0002] In modern clinical medicine, as an effective means to artificially replace, control, or change the function of spontaneous ventilation, the ventilator has been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, and respiratory support therapy. In the field of modern medicine, it occupies a very important position. [0003] In the existing ventilator, the high-pressure input processing at the front end of the air source and the detection control of the low-pressure output at the rear end have dispersed modules connected by joints and hoses to form a detection system. There are following defects in the existing various detection detection, adjustment and control systems: [0004] 1. The gas source inlet modules are scatte...

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Problems solved by technology

[0004] 1. The gas source inlet modules are scattered and independent, and various joints need to be assembled to connect with other modules, which is inconvenient and time-consuming to assemble, debug and maintain;

[0005] 2. The pipeline air source pressure detection module is connected with the joint of the air source inlet module through a hose. It is time-consuming and laborious to connect the hoses. There is a risk of wrong connection of multiple hoses, and there is a risk of leakage under high pressure. Joint debugging, replacement and maintenance inconvenience;

[0006] 3. It is separated and independent from each module, the joint ventilation test site is large, and the connection steps are cumbersome. After the test is passed, the hose needs to be dismantled and then assemb

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