Venturi valve capable of adjusting oxygen concentration
A technology of venturi and oxygen concentration, applied in the field of medical devices, can solve the problems of cumbersome operation, achieve the effect of convenient adjustment and use, reduce valve inventory requirements, and adjust and use safely and quickly
Pending Publication Date: 2020-07-28
英特赛克医疗器械(常州)有限公司
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- Abstract
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- Application Information
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Problems solved by technology
The hospital needs to store a large number of valves. When changing the oxygen concentration, the valves need to be replaced accordingly, which is cumbersome to operate.
Method used
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Embodiment Construction
[0027] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0028] Such as Figure 1 to Figure 11The shown adjustable oxygen concentration Venturi valve is the best embodiment of the present invention, including an air intake plug head 1, a rotating sleeve and a fixed sleeve, the fixed sleeve is a straight cylindrical structure, and the In the straight cylindrical structure, along its radial plane, there is a partition 2 that divides the straight cylindrical structure into an upper chamber 7 and a lower chamber 8. On the lower plane of the partition 2, there is an air inlet pipe 6, and the lower end of the air inlet pipe 6 has an air outlet. The air inlet plug head 1 has a valve intubation tube 9 communicated with the...
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The invention provides a venturi valve capable of adjusting oxygen concentration. The venturi valve comprises an air inlet plug, a rotary sleeve and a fixed sleeve, a fixed air inlet window is formedin the outer circumferential surface of a lower cavity of the fixed sleeve, a rotary air inlet window is formed in the position, matched with the fixed air inlet window, of a rotary part, and the fixed air inlet window and the rotary air inlet window form a mixed air inlet window for inputting air into the lower cavity of the fixed sleeve when the rotary part rotates relative to the fixed sleeve;the surface of the rotary sleeve is provided with arrow indication, and the outer peripheral surface of the fixed sleeve corresponding to the arrow indication direction is provided with air inlet concentration identification. The size of the mixed air inlet window can be adjusted by rotating the rotary sleeve, so that the oxygen supply concentration is changed according to requirements, adjustmentof multi-concentration-ratio oxygen supply can be achieved without arranging a plurality of valves, the valve inventory requirements are reduced, adjustment and use are convenient, safe and rapid, and oxygen inhalation operation is facilitated.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to an adjustable oxygen concentration venturi valve. Background technique [0002] In clinical practice, common oxygen inhalation methods include nasal congestion, nasal cannula, mask method, Venturi mask, etc. Venturi masks are made according to the Venturi principle, which creates a negative pressure around the jet stream and carries a certain amount of air into the mask from open side seams or side holes. Because the oxygen supply hole has a certain caliber, the air inhaled from the side seam of the mask or the measurement and control can be mixed with oxygen to maintain a fixed ratio. Adjusting the size of the side seam of the mask and the flow of oxygen can change the ratio of air to oxygen. Determine the concentration of inhaled oxygen. At present, the existing Venturi valve is usually a fixed valve, and the oxygen concentration of the fixed valve cannot be adjusted,...
Claims
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IPC IPC(8): G05D11/035A61M16/20
CPCA61M16/201G05D11/035
Inventor 闫国锋
Owner 英特赛克医疗器械(常州)有限公司