A multi-channel simulated suction device

Abstract

The invention discloses a multipath simulation gas suction device which comprises a first cabin, a second cabin, a gas path module and a control structure, wherein the gas pressure in the second cabin is lower than that in the first cabin; the gas path module communicates the first cabin and the second cabin and comprises a first multi-way structure capable of implementing multi-way entrance and one-way exit of gas, a first gas outlet pipe for communicating a first gas outlet of the first multi-way structure and the second cabin, and first gas inlets which are formed on the first multi-way structure and are communicated with the second cabin; the control structure controls on-off and gas flow of the first gas inlets. In the multipath simulation gas suction device, the gas pressure difference between the first cabin and the second cabin can implement the automatic gas suction process of the device; a respiratory driving mechanism does not need to be arranged; the multipath simulation gas suction device has a simple structure and is low in production cost; meanwhile, the multipath simulation gas suction device is provided with the first multi-way structure capable of implementing multi-way entrance and one-way exit of the gas, and thus, a plurality of paths of gas suction passages are formed, a plurality of gas suction processes can be simultaneously simulated, and the multipath simulation gas suction device can meet the requirement of a large-scale oxygen system test.

Description

technical field [0001] The invention relates to a simulated suction device, in particular to a multi-channel simulated suction device. Background technique [0002] In the airborne oxygen system performance analysis test, it is necessary to use a breathing simulation device instead of a human to perform the performance test of the oxygen system low pressure chamber. Detect the test parameters to obtain the performance index of the oxygen system. However, the artificial simulation device used in the current research does not have the function of simulating the spontaneous breathing of the human body, and cannot meet the research needs of the assisted ventilation mode. [0003] In order to solve the above problems, the Chinese patent literature discloses a device for actively simulating the spontaneous breathing of the human body in vitro, including a circulating air circuit composed of a driving ventilator, a double-chamber simulated lung, and a head dead space model. The i...

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Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that the simulated breathing device in the prior art has a complex structure and is a single-channel simulation device, which cannot meet the needs of large-scale oxygen system tests, and then provides a simple structure, and A multi-channel simulated inspiratory device capable of large-scale breathing simulation

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