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Device and method for controlling expiratory valve

A technology of exhalation valve and exhalation valve, which is applied in the direction of respirators, etc., can solve the problems of low control accuracy and slow response time, achieve high response time, reduce energy consumption, and shorten the time on the machine

Inactive Publication Date: 2008-11-26
BEIJING AEONMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this electromagnetic PEEP valve is that the response time is slow and the control accuracy is not high.

Method used

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  • Device and method for controlling expiratory valve
  • Device and method for controlling expiratory valve
  • Device and method for controlling expiratory valve

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Embodiment Construction

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims. The same components are denoted by the same reference numerals in the drawings.

[0025] refer to figure 2 , the device (PEEP valve in the present invention) that the present invention is used for controlling exhalation valve comprises: electromagnetic valve, valve rod 2, regulating element 9, air inlet chamber 10, first exhaust chamber 11, regulating element 9 (the present invention The adjusting element is a diaphragm) is set between the valve stem 2 and the intake chamber 10, the first exhaust chamber 11 and the intake chamber 10 are set on the first side of the adjusting element 9, and the solenoid valve is set on the side of the adjusting element 9 A second side, opposite to the first side. The control solenoid valve can push the valve stem 2 ...

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Abstract

The invention provides a device and a method for controlling an exhalation valve, the device for controlling the exhalation valve comprises: a film disk (9); an electromagnetic valve which is positioned at first side of the film disk (9); a first exhaust chamber (11) and an air inlet chamber (10), which are positioned at second side of the film disk (9), and the film disk (9) can selectively block off the air inlet chamber (10) and a channel between the first exhaust chamber (11) and the air inlet chamber (10) by a valve rod (2) of the electromagnetic valve. The method for controlling the exhalation valve comprises that: the electromagnetic valve is controlled to lead the film disk (9) to move towards the direction of an electromagnet under the input pressure function of the air inlet chamber (10); the input air flow of the air inlet chamber (10) is exhausted from the first exhaust chamber (11) from an air flow channel; the air flow is controlled to be directly flowed into an air containing chamber of the exhalation valve, thus pushing an exhalation valve body of the exhalation valve to block off an exhalation chamber of the exhalation valve. The device has fast response time and high control precision.

Description

technical field [0001] The invention relates to a device and method for controlling an exhalation valve. Background technique [0002] At present, most advanced therapeutic ventilators on the market have the important therapeutic function of PEEP. PEEP has a series of therapeutic effects such as improving oxygenation of patients, facilitating the removal of carbon dioxide, preventing alveolar atrophy, and increasing lung compliance. Mainly used for the following clinical indications: 1) Hypoxemia, especially ARDS patients; 2) COPD patients; 3) Pneumonia, pulmonary edema; 4) Prevention and treatment of atelectasis after major surgery, maintaining alveolar expansion and other clinical indications. [0003] PEEP refers to the positive end-expiratory pressure, that is, at the end of the patient's exhalation, the airway pressure is higher than the atmospheric pressure by means of the air-limiting valve and other components installed at the exhalation end. To achieve this funct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/20A61M16/00
Inventor 孙小敏邓咏如李敬辉
Owner BEIJING AEONMED
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