Mechanical PEEP valve

Abstract

The present invention discloses a mechanical PEEP (Positive End-Expiratory Pressure) valve, and mainly relates to a medical positive end-expiratory pressure device which is adjusted manually. The mechanical PEEP valve of the invention mainly comprises a valve body (1), a connecting component (4), a guiding component (7) and a spring (8), wherein the valve body (1) and the connecting component (4) are connected by screw. The spring (8) is sleeved on the guiding component (7) and is positioned between the connecting component (4) and the guiding component (7). The connecting component (4) is sleeved on the guiding component (7). The connecting component and the guiding component (7) are in clearance fit. The mechanical PEEP valve with the structure can use the spring (8) for realizing the adjustment to PEEP value. The adjusting range is between 0 and 20cmH2O thereby adapting the requirement of patients with different states. Furthermore the gravity force exerted on the diaphragm (9) satisfies the opening pressure requirement of EN740 when the spring pressure is zero.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a mechanical PEEP valve (Positive End-Expiratory Pressure, positive end-expiratory pressure ventilation device) for medical manual adjustment, which is mainly used in anesthesia ventilators to facilitate breathing for patients with lung lesions. ventilation. Background technique [0002] In the medical field, when a patient undergoes surgery or needs external assistive devices for assisted breathing, an anesthesia ventilator is usually used to achieve this purpose to help the patient breathe and ventilate. However, after the patient exhales, the pressure in the lungs drops rapidly to one atmosphere, and the waveform of the pressure in the lungs of the patient is as follows: figure 1 As shown, this situation causes the functional residual capacity in the patient's lungs to decrease rapidly, and it is difficult for the residual gas in the patient's lungs to keep the alveoli at a c...

AI Technical Summary

Problems solved by technology

However, after the patient exhales, the pressure in the lungs drops rapidly to one atmosphere, and the waveform of the pressure in the lungs of the patient is as follows: figure 1 As shown, this situation causes the functional residual capacity in the patient's lungs to decrease rapidly, and it is difficult for the residual gas in the patient's lungs to keep the alveoli at a certain volume. The atrophy of the patient's lungs; and the sharp drop in the lung pressure of the patient reduces the compliance of the lungs, and the ventilation and oxygenation status are poor

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