Oxygen production and gas supply device and method for operating room and ICU

Abstract

The invention belongs to the technical field of medical gas engineering, and particularly relates to an oxygen production and gas supply device and method for an operating room and an ICU. The oxygen production and gas supply device comprises at least two groups of separators which are sequentially connected in series, wherein the front stage is a pressure swing adsorption drying and purifying separator, whereas the rear stage is a zeolite membrane separator; at least one oxygen buffer tank, which is used for receiving oxygen output by the zeolite membrane separator, and a flow control valve and an automatic regulating valve are arranged at the outlet end of the oxygen buffer tank and used for controlling output enriched oxygen; a control assembly, and related control valves and connecting pipelines; and an interface which is used for receiving compressed air provided by a hospital, an interface of medical care oxygen, and an interface for outputting the oxygen to arespirator. According to the invention, the medical oxygen with the purity greater than or equal to 99.5% can be prepared; the device is free of power equipment, wherein a front-end oxygen source is directly introduced as emergency oxygen supply, fault safety strategy guidance is complete, and the reliability is extremely high. The device is simple to operate and can be used immediately when being powered on, and is convenient to repair.

Description

technical field [0001] The invention belongs to the technical field of medical gas engineering, and in particular relates to an oxygen production and gas supply device and method for operating rooms and ICUs. Background technique [0002] Medical oxygen is needed for clinical medical treatment. According to the mandatory provisions of the national standard "GB8982-2009 Medical and Aviation Respiratory Oxygen", the purity of "medical oxygen" should be ≥ 99.5%. In addition, "Chinese Pharmacopoeia (2015 Edition)" also clearly stipulates that "oxygen" (medical oxygen) should have a purity of ≧99.5%; at the same time, it also specifies the requirements for impurities in detail. According to management, not all oxygen can be used for clinical treatment in ICU, operating room, etc. [0003] The purity of industrial oxygen can reach 99.5%, but it cannot be used for clinical treatment because "the purity is satisfied, but what is the remaining 0.5% other than 99.5%?" Obviously, if 0...

AI Technical Summary

Problems solved by technology

[0006] At present, most hospitals in my country still purchase legal and compliant "medical oxygen" to meet clinical treatment needs. Typically, such as purchasing medical liquid oxygen and bottled oxygen, transporting them to the hospital for use, but due to inconvenient transportation, there may be supply cuts

Liquid oxygen and high-pressure cylinder oxygen have great potential safety hazards in transportation, storage, operation and use because of their medium characteristics and pressure.

[0007] In addition, some small-scale hospitals, because of the inconvenient supply of liquid oxygen and bottled oxygen, use "medical molecular sieve oxygen production" to produce oxygen and gas on site, which is ready to use, good safety and low cost. Oxygen purity of about 93% is produced, also known as "oxygen-enriched air" or "93 oxygen", which can meet the oxygen demand of general restorative treatment, solve safety problems to a certain extent, and ease the contradiction of oxygen supply , but because the purity does not meet the national standard and pharmacopoeia requirements, it cannot provide compliant "medical oxygen" for operating rooms and ICUs, so it is subject to certain restrictions

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