Detachable oxygen inhalation mask

Abstract

The invention relates to a detachable oxygen inhaling face mask. A concentration adjusting device comprises a pedestal fixed on a mixing device, the pedestal is provided with a lower end hole which is opposite to and communicated with an air channel inlet, the lower end hole is hermetically communicated with an air channel, the pedestal is rotationally connected with an inner sleeve, the distances from the bottoms of a first ratchet groove, a second ratchet groove, a third ratchet groove and a fourth ratchet groove to the center of the inner sleeve are increased in sequence, the pedestal is provided with a valve core seat which stretches to the middle of the inner sleeve, the valve core seat is in sliding connection with a valve core, ratchets are in cooperation with the first ratchet groove, the second ratchet groove, the third ratchet groove and the fourth ratchet groove to form a unidirectional rotation structure of the inner sleeve under the action of the valve core and a valve core compression spring, the inner sleeve rotates to enable the superposed area of an upper end hole and a lower end hole to change relatively as well, and the valve core tightly abuts against the pedestal. According to the detachable oxygen inhaling face mask, the oxygen concentration can be adjusted conveniently and rapidly, whether the face mask reaches a selected gear position or not can be easily judged through the jolting sense generated by the ratchets, and the change cannot happen easily.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a detachable oxygen inhalation mask. Background technique [0002] Breathing is the first element of life support. Patients with respiratory system or other symptoms need to be given quantitative oxygen. Oxygen supply can reduce the frequency of attacks, improve internal organ function, and enhance immunity. However, depending on the patient's condition, the oxygen concentration of the oxygen supply is also different. At the same time, breathing under high oxygen concentration for a long time may cause oxygen poisoning. Therefore, the oxygen inhalation mask is required to inhale oxygen to adjust the concentration of oxygen. Now the oxygen concentration adjustment structure is complicated to operate, and it is easier to misselect the oxygen concentration adjustment gear, and there are many switches that accidentally change the oxygen concentration without knowing it, wh...

AI Technical Summary

Problems solved by technology

Now the oxygen concentration adjustment structure is complicated to operate, and it is easier to misselect the oxygen concentration adjustment gear, and there are many switches that accidentally change the oxygen concentration without knowing it, which is a problem for patients who are breathing with oxygen. great risk

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