Oxygen flowmeter

A technology for oxygen flow and oxygen, which is used in the measurement of flow/mass flow, liquid/fluid solid measurement, measurement devices, etc., and can solve problems such as inaccurate measurement methods

Inactive Publication Date: 2004-04-21
李争
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Generally in use, there is no special oxygen flow metering device, and the oxygen consumption is calculated only by the time the patient inhales oxygen, so as to calculate the patient's oxygen usage fee based on this. precise
With the continuous replacement of medical equipment in hospitals, some large hospitals have specially set up a centralized oxygen supply breathing system in the ward, using valves to control the flow direction and flow, but their use still has the problem of accurate measurement of oxygen after the patient uses it.

Method used

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings: Fig. 1---shown in Fig. 2, the present invention has a watch case 1, and the watch case is provided with oxygen inlet joint 2 and outlet joint 3. A magnetic constant pressure compensation mechanism 4 is arranged behind the oxygen inlet connecting pipe 2, as shown in FIG. 3 . This magnetic constant pressure compensating mechanism 4 comprises an overcoat 42 with an opening at one end and an air outlet 41 on the outer wall. A removable movable magnetic steel 43 is placed in the overcoat 42, and a sealing ring 44 is connected to its outside; The outer side and the open end of the overcoat 42 are fixedly arranged with a fixed magnetic steel 46 with a through hole 45 in the middle. The air port 41 flows out, and due to the magnetic effect, it can release the interval impact airflow under the situation of very small oxygen flow, so that the wing wheel connected behind can obta...

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Abstract

An oxygen flowmeter consists of a meter shell, oxygen inlet adapter and outlet adapter on the meter shell as well as rotor detector built by wing wheels. The rotor detector is set in between the two adapters and is connected to a mechanical counter set on the meter shell through a magnetic transmission mechanism and gear down mechanism, furthermore it is series-connected with a magnetic constant-pressure compensation mechanism at front of oxygen entering in the rotor detector and series-connected with a displacement airflow detector at oxygen releasing end.

Description

technical field [0001] The invention relates to a gas flow metering device, in particular to a device capable of measuring small-flow oxygen, which is suitable for metering breathing oxygen of patients in hospitals and the like. Background technique [0002] Now the patients in the hospital need to breathe oxygen, most of them are filled with medical oxygen in the oxygen cylinder, after connecting a pressure gauge and a humidification cup and other instruments on the oxygen valve, use it with a connecting tube and directly plug it into the nose or mouth. Only the oxygen mask is for the patient to inhale through the mouth. Generally in use, there is no special oxygen flow metering device, and the oxygen consumption is calculated only by the time the patient inhales oxygen, so as to calculate the patient's oxygen usage fee based on this. precise. With the continuous replacement of medical equipment in hospitals, some large hospitals have specially set up a centralized oxygen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00G01F1/05G01F1/075
Inventor 李争
Owner 李争
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