Mechanical PEEP valve and emergency ventilator with PEEP valve

Abstract

The invention relates to a mechanical PEEP valve and an emergency ventilator with the PEEP valve. The mechanical PEEP valve comprises a valve body, a movable separation blade mechanism and a control mechanism. The movable separation blade mechanism comprises at least two separation blades, the separation blades are arranged in an expiration channel of the valve body through rotating shafts, the separation blades are driven by the control mechanism to be switched between an initial state and an overturning state, the separation blades and the axial direction of the expiration channel are parallel to each other in the initial state, and the separation blades and the axial directions of the expiration channel are perpendicular to each other in the overturning state; the control mechanism comprises a driving motor, a signal induction assembly and an adjustable transmission assembly. The driving motor can drive all or part of the rotating shafts to rotate through the adjustable transmissionassembly. The mechanical PEEP valve can make a patient have a smooth expiration without obstruction in the initial stage of expiration, and can reduce the flow of the expiration channel in the laterstage of expiration, so that resistance is applied to the expiration of the patient, expiration time is prolonged, oxygenation time is prolonged, and an oxygenation state is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a mechanical PEEP valve and an emergency ventilator with the PEEP valve. Background technique [0002] In the rescue of patients with respiratory arrest in hospitals, ventilators are generally used to help patients breathe and ventilate. However, after the patient exhales air, the pressure in his lungs drops rapidly to one atmospheric pressure, which rapidly reduces the functional residual capacity in the patient's lungs, making it difficult for the residual gas in the patient's lungs to keep the alveoli at a certain volume, and at the same time due to The patient's own lung function is not perfect, which is likely to lead to the shrinkage of the patient's alveoli; and the sharp drop in the patient's lung pressure reduces the compliance of the lung, and the ventilation and oxygenation status are poor. Therefore, there is a need to provide a device that can improve the ab...

AI Technical Summary

Problems solved by technology

But there are still some deficiencies, mainly in: although the patient can maintain a certain airway pressure at the end of exhalation, the patient will encounter greater air pressure than normal exhalation at the beginning of exhalation, which is harmful to respiratory function. For injured patients, it undoubtedly increases a lot of pain

Images