Two-channel one-way valve and respiratory nursing first-aid respirator

Abstract

The invention discloses a two-channel one-way valve and a respiratory nursing first-aid respirator. The two-channel one-way valve comprises a valve body and two valve elements; the valve body comprises a gas inlet channel and a gas outlet channel; the gas inlet channel and the gas outlet channel are separated through a partition plate; each valve element is of a fan-shaped body structure, and theaxis of the valve element is located on the longitudinal axial section of the valve body and is perpendicular to the axis of the valve body; two through holes are formed in the partition plate; the two valve elements are arranged in a bilateral symmetry mode; the two valve elements are arranged in the two through holes respectively; the valve elements are connected with the partition plate throughtorsion springs, and the two valve elements rotate into the gas inlet channel and the gas outlet channel respectively under the torsion action of the torsion springs. The respiratory nursing first-aid respirator comprises the two-channel one-way valve, and also comprises a treatment box; a gas transmission chamber and a gas exhaust chamber are arranged in the treatment box; a piston, a piston push rod, a handle and a one-way valve communicating with the outside are arranged in each of the gas transmission chamber and the gas exhaust chamber; and the gas transmission chamber and the gas exhaust chamber communicate with the gas inlet channel and the gas outlet channel of the two-channel one-way valve through a gas transmission pipe and a sewage suction pipe respectively.

Description

technical field [0001] The invention relates to the technical field of respiratory care emergency supplies, in particular to a two-way one-way valve and a respiratory care emergency respirator. Background technique [0002] Although the existing emergency respirator can provide artificial respiration and provide lung ventilation to patients with sudden dyspnea or respiratory failure in the occasion of incomplete power supply and emergency situations, the breathing control method is single, and most of them can only be used for patients. Perform positive pressure ventilation without more adjustable breathing patterns to suit different patient needs. [0003] Although the existing emergency respirator can also adjust the tidal volume of the patient during ventilation to adapt to the breathing needs of different patients, the adjustment process is complicated and the adjustable range is small, and the gas supply required by the patient will gradually increase during the first a...

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