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Oxygen-air hybrid mechanism and breathing machine with the mechanism

An oxygen mixing and mixing chamber technology, applied in respirator and other directions, can solve problems such as increasing power loss, increasing design cost, reducing battery life, etc., and achieves the effects of stable control, convenient installation and maintenance, and simple processing.

Inactive Publication Date: 2010-06-30
BEIJING AEONMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relying on the valve island to adjust the tidal volume and oxygen concentration can meet high precision, but the combination of the valve island greatly increases the design cost. At the same time, the power board also needs high power to meet the use of the valve island, so the design increases Increased power loss reduces battery life

Method used

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  • Oxygen-air hybrid mechanism and breathing machine with the mechanism
  • Oxygen-air hybrid mechanism and breathing machine with the mechanism

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Embodiment Construction

[0019] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims. The same components are denoted by the same reference numerals in the drawings.

[0020] refer to figure 1 , the air-oxygen mixing mechanism of the present invention includes: housings 3 and 4, and a mandrel 1, wherein the housings 3 and 4 are combined with each other and sealed at the connection, a mixing chamber is formed in the housings 3 and 4, and the The first chamber and the second chamber on both sides of the mixing chamber, specifically, from figure 1 It can be seen that the first chamber and the mixing chamber are arranged in the housing 3, the second chamber is arranged in the housing 4, and the exhaust port 13 of the first chamber communicates with the exhaust port 14 of the second chamber through the mixing chamber. Both ends of the rea...

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Abstract

The invention provides an oxygen-air hybrid mechanism which comprises shells (3, 4) and a mandrel (1), wherein the shells is provided with a hybrid cavity, a first cavity and a second cavity which are respectively arranged at both sides of the hybrid cavity, and an exhaust port (13) of the first cavity is communicated with an exhaust port (14) of the second cavity by the hybrid cavity; the mandrel (1) can axially move and pass through the first cavity, the hybrid cavity and the second cavity in sequence; the mandrel (1) is provided with a step part (15) which is accommodated in the hybrid cavity; and the axial direction along which the step part (15) moves can simultaneously change the opening of the two exhaust ports (13,14). The invention also provides a breathing machine which comprises the oxygen air hybrid mechanism and a flow proportional valve which is communicated with a quick connection adapter (6) of the oxygen-air hybrid mechanism so as to control the transmission gas flow. The invention can realize the precise control of the oxygen concentration in the condition of less ventilation volume and larger flow and can work in the higher pressure condition.

Description

technical field [0001] The invention relates to an air-oxygen mixing mechanism and a ventilator with the mechanism. Background technique [0002] During the use of medical devices such as ventilators and anesthesia machines, patients must be mechanically ventilated. For patients undergoing treatment, it is very important to control the size of the ventilation volume and adjust the oxygen concentration, especially for infants and young children. Critically ill patients. Accurate, sensitive and continuous adjustment of oxygen concentration from large tidal volume in adults to small tidal volume in infants determines the accuracy of the ventilator and also determines the grade of the ventilator. [0003] At present, the oxygen concentration of various ventilators is adjusted in different ways depending on the control and adjustment of two flow proportional valves, some rely on the arrangement and combination of electromagnetic valve islands with different diameters, and some r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/12A61M16/00
Inventor 李捷王军任福立
Owner BEIJING AEONMED
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