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Three-way pressure balance valve and medical respirator

A three-way pressure and balance valve technology, applied in the direction of respirators, etc., can solve the problems of inconvenient use, low control accuracy, complex structure, etc., and achieve the effect of simple structure, precise control, and convenient use

Active Publication Date: 2010-10-13
CURATIVE MEDICAL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Complex structure, inconvenient use, low control accuracy

Method used

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  • Three-way pressure balance valve and medical respirator
  • Three-way pressure balance valve and medical respirator
  • Three-way pressure balance valve and medical respirator

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0020] Three-way pressure balance valve of the present invention, its preferred embodiment is:

[0021] It includes a three-way integrated pipeline. The three-way integrated pipeline includes an air source port, a release port, and a breathing port. The air source port and the breathing port are directly connected. A diaphragm is arranged at the inner end of the air source port. The mouth communicates through the space above the diaphragm;

[0022] The diaphragm is connected with a driver for driving the diaphragm to move up and down to adjust the size of the gap between the air source port and the release port.

[0023] The driver is an electromagnetic coil, the shell of the electromagnetic coil is connected to the three-way integrated pipeline through a connecting seat, and the moving core of the electromagnetic coil is connected to the diaphragm through a transmission shaft.

[0024] The transmission seat is provided with a gas fluctuation release hole, and the lower cavit...

specific Embodiment 1

[0045] A pressure valve with a single spring driver cantilever, one or two damping spring pieces 6 are arranged on one side of the coil 5 to support the moving core and the transmission shaft 41 .

specific Embodiment 2

[0046] There are spring-supported pressure valves at both ends of the driver, and a piece of damping spring piece 6 is respectively arranged on both sides of the coil 5 to support the moving core and the transmission shaft 41 .

[0047] The function of the damping spring piece 6 is to provide quick response and eliminate system friction, and to properly keep the moving core assembled at the center of the coil magnetic field.

[0048] The three-way pressure balance valve of the present invention can generate continuous force, allowing the system to release and return to the original pressure target during the inhalation phase; when exhaling, it can unload the exhalation pressure and control the exhalation waveform to reduce The patient's work of breathing; and forced balancing can be used to automatically restore system pressure when subjected to a source of disturbance such as a patient's cough.

[0049] For medical ventilators, maintain proper pressure during inhalation and e...

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Abstract

The invention discloses a three-way pressure balance valve and a medical respirator. The three-way pressure balance valve comprises a three-way integrated pipe, wherein, the three-way integrated pipe comprises an air source port, a release port and a breathing port; the air source port is communicated directly with the breathing port; a thoracic diaphragm is arranged on the inner end of the air source port; the air source port is communicated with the release port through the space above the thoracic diaphragm; and the thoracic diaphragm is connected with an actuator which is used for actuating up-and-down movement of the thoracic diaphragm so as to adjust the gap size between the air source port and the release port. The medical respirator is connected with the three-way pressure balancevalve to adjust the gap size between the air source port and the release port by up-and-down movement of the thoracic diaphragm and control an inspiration pressure and an expiration pressure respectively to maintain proper pressure at inspiration and expiration stages. The three-way pressure balance valve can realize two horizontal pressures to reach the optimal pressure. The medical respirator has the advantages of simple structure, convenient use and accurate control.

Description

technical field [0001] The invention relates to a medical breathing apparatus, in particular to a three-way pressure balance valve and a medical ventilator. Background technique [0002] Noninvasive positive pressure ventilation (NPPV) has long been recognized as helpful in the treatment of patients with chronic obstructive pulmonary disease (COPD). Non-invasive positive pressure ventilation techniques use positive pressure ventilation without implanted artificial airways. The basic idea is to ventilate through the nasal mask with two pressures (inhalation and exhalation). Positive pressure ventilation will assist the patient during inhalation and passive exhalation due to lung recoil. [0003] Ventilators in the prior art use two technologies: [0004] One is to use a fan to adjust the pressure when inhaling and exhaling; the other is to use a proportional valve to open and adjust the pressure by controlling the valve (adjusting the flow to control the pressure). [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/20A61M16/00
Inventor 张晓民孙建国
Owner CURATIVE MEDICAL TECH INC
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