Valve control device and anesthesia machine
A control device and control terminal technology, applied in the direction of respirators, etc., can solve problems affecting the normal operation of the valve
Active Publication Date: 2014-02-26
BEIJING AEONMED
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- Application Information
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Problems solved by technology
[0005] The main purpose of the present invention is to provide a valve control device and an anesthesia machine to solve the problem in the prior art that the damage of the switching element in the valve control device will affect the normal operation of the valve
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[0018] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0019] In the prior art, the switch of the control valve has only one switching element. For some reason, the switch element is damaged during use, causing the valve to be normally open or normally closed. The present invention adds an additional switching element as circuit protection, and when the switching element of one control valve is damaged, the other is still functioning. The structure of the present invention is as figure 2 Shown:
[0020] The valve control device includes: the port element of the valve 3 includes a power port 31 and a control port 32, the power port 31 is used to supply power to the valve, and the control port 32 is used to control the opening and closing of the ...
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The invention provides a valve control device and an anesthesia machine. The valve control device comprises a port element, a first switch element and a second switch element, wherein the port element comprises a power supply port and a control port; the power supply port is used for supplying power to the valve; the control port is used for controlling the switch-on and switch-off of the valve; the first switch element and the second switch element are provided with a controlling end and two controlled ends respectively; after a conduction signal is received at the controlling end, the two controlled ends are conducted; the controlling end of the first switch element is used for receiving a first control signal, the second controlled end of the first switch element is grounded through a resistor, and the first controlled end of the first switch element is connected with the second controlled end of the second switch element; and the controlling end of the second switch element is used for receiving a second control signal, and the first controlled end of the second switch element is connected with the control port of the port element. Due to the adoption of the technical scheme, normal use of a valve and the safety of an anesthesia machine user are ensured.
Description
technical field [0001] The invention relates to a valve control device and anesthesia machine. Background technique [0002] An anesthesia machine is a device that guides patients to inhale anesthesia gas and perform mechanical ventilation during surgery. There are many valves on the anesthesia machine that control the flow of oxygen and anesthetic gas to the user. The gas provided to the patient needs to be precisely controlled by a valve, and the precise control of this flow rate requires a valve. [0003] In general, such as figure 1 As shown, the switch of the control valve has only one switching element. If due to some reasons (such as high temperature, high current, aging, etc.), if the switch element is damaged during use, it will cause the valve to be normally open or normally closed, so that the valve cannot work normally, thus affecting the anesthesia machine. normal work. [0004] Damage to the switching element in the valve control device in the prior art wi...
Claims
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IPC IPC(8): A61M16/01A61M16/20
Inventor 张耀东
Owner BEIJING AEONMED