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High response air controlled trigger mechanism

A trigger device, sensitive technology, used in the direction of respirators, etc.

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

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the valve can be triggered by low inspiratory pressure to achieve synchronization, the present invention provides a highly sensitive air-controlled trigger device, which amplifies the weak pressure signal of the patient, thereby opening the relevant valve to realize the trigger

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] FIG. 1 is a front view showing an air-operated trigger device according to the present invention. figure 2 is a top view showing the air-operated trigger device according to the present invention after removing the valve flap and the valve cover.

[0020] As shown in Figure 1, a highly sensitive air-controlled trigger device used in a pneumatic air-controlled ventilator, the device includes a trigger device valve body 1, an air intake inner mouth 2, an air intake joint 3, a breathing joint 4, and a support rod 5. Valve 7, spring 8, torsion spring 9, lever 10, gasket 11, valve cover 12, and adjustable screw 13.

[0021] The valve body 1 of the trigger device is the body of the device, and it is connected with the valve cover 12 by threads. The flap 7 is clamped between the trigger valve body 1 and the valve cover 12 by the connection b...

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Abstract

The invention discloses a high-sensitive gas-controlled trigger device for a pneumatic gas-controlled respirator, which comprises a valve body (1) of the trigger device; a valve cover (12) which is fixedly connected on the valve body (1) of the trigger device; a valve (7) which is clamped between the valve body (1) of the trigger device and the valve cover (12) in a sealing way to commonly limit a sealed space with the valve body (1) of the trigger device; an air inlet connector (3) which is arranged on the valve body (1) of the trigger device, and an air inlet inner mouth (2) is arranged at the inner end of the air inlet connector (3); a respiration connector (4) which connects the inhalation end of a patient and the sealed space; and a lever mechanism which is arranged in the sealed space and at least comprises a lever (10), a first end of the lever (10) is contacted with the valve (7), and a second end can selectively open or close a channel interface of the inner mouth (2). As the device adopts the lever principle, the slight negative pressure generated by the inhalation of the patient is amplified, and the related valve is opened to realize the trigger, thus having very high sensitivity of the device.

Description

technical field [0001] The invention relates to a high-sensitivity air-control trigger device for a pneumatic air-controlled ventilator. Background technique [0002] Pressure triggering is a commonly used triggering method for air-controlled synchronous ventilators. However, due to some characteristics of the air control method, the sensitivity of the trigger is often unsatisfactory, and the patient often needs to send out a trigger below -10cmH 2 The strong inspiratory pressure of O pushes the valve to trigger, so as to realize the independent air supply of the ventilator. But the inspiratory pressure of this value is not easy for healthy people to achieve. Therefore, this trigger cannot meet the objective needs of patients with respiratory failure, and therefore has very low clinical application value. Contents of the invention [0003] In order to solve the problem that low inspiratory pressure can realize valve triggering to realize synchronization, the present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00
Inventor 颜辉申佑方
Owner BEIJING AEONMED
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