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Apparatus for actively simulating autonomous respiration of human body in vitro and gas analyzing method employing the same

A technology of spontaneous breathing and gas analysis, applied in the field of respiratory medical physiology research, can solve the lack of gas flow and gas composition measurement and analysis functions flowing through the simulated lung, the artificial simulated lung does not have the function of simulating the spontaneous breathing of the human body, and cannot satisfy the auxiliary type Ventilation mode research needs and other issues, to achieve the effect of compact structure, convenient disassembly and assembly, and fast concentration response

Active Publication Date: 2012-09-12
THE FIRST HOSPITAL OF CHINA MEDICIAL UNIV +1
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Problems solved by technology

[0002] At present, the artificial simulated lung used in clinical work does not have the function of simulating the spontaneous breathing of the human body, cannot meet the research needs of assisted ventilation mode, and lacks the measurement and analysis function of the gas flow and gas composition flowing through the simulated lung, which cannot provide clinical application and medical science. Research provides an objective and quantifiable method of data analysis

Method used

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  • Apparatus for actively simulating autonomous respiration of human body in vitro and gas analyzing method employing the same
  • Apparatus for actively simulating autonomous respiration of human body in vitro and gas analyzing method employing the same
  • Apparatus for actively simulating autonomous respiration of human body in vitro and gas analyzing method employing the same

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Embodiment Construction

[0024] specific implementation plan

[0025] Such as figure 1 As shown: the gas circuit part of the device of the present invention includes a driving ventilator 9, a double-chamber simulated lung 8 and a head dead space model 7, and the driving ventilator 9 is connected with a chamber (as a driving chamber) of the double-chamber simulated lung 8, Another chamber (as a test chamber) is connected with the head dead space model 7 . Drive the ventilator 9 to work according to the set parameters, and drive the volume of the driving chamber of the double-chamber simulated lung 8 to change regularly. The driving chamber and the test chamber are connected by a metal connecting rod, so that the airflow between the test chamber and the driving chamber is synchronized. Conduction, simulating the spontaneous breathing of the human body.

[0026] Among them, the driving ventilator is produced by NEWPORT Company, model: Niubang HT50. The double-chamber simulated lung 8 is a commercially...

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Abstract

The invention, which belongs to the psychological research filed of respiratory medicine, relates to an apparatus for actively simulating autonomous respiration of a human body in vitro and a gas analyzing method employing the same. The apparatus includes a circulating gas circuit formed by a driving respirator, a dual-cavity simulation lung device and a head dead space model; and the output end of the dual-cavity simulation lung device is connected with the head dead space model by a gas analyzing device. The gas analyzing method comprises the following steps that: data are collected; integration is carried out on results by multiplication of obtained real-time oxygen concentration inside the apparatus and inspiration / expiration flow rates so as to obtain oxygen fluxes and tidal volumes of expiration / inspiration in each respiratory cycle; and division operation is carried out on the oxygen fluxes and tidal volumes to obtain mean effective inspired oxygen concentration in inspiratory / expiratory phases. According to the invention, the apparatus having a compact structure can be applied to scientific research and training of various ventilation modes; and the applied gas analyzing method enables a detection result to be accurate and to approach a real one.

Description

technical field [0001] The invention belongs to the research field of respiratory medicine physiology, and in particular relates to the design, realization and application of a novel in vitro active simulation lung model and a gas analysis device. Background technique [0002] At present, the artificial simulated lung used in clinical work does not have the function of simulating the spontaneous breathing of the human body, cannot meet the research needs of assisted ventilation mode, and lacks the measurement and analysis function of the gas flow and gas composition flowing through the simulated lung, which cannot provide clinical application and medical science. Research provides an objective and quantifiable method of data analysis. Contents of the invention [0003] The purpose of the present invention is to establish a novel in vitro active simulated lung model, and to provide a method capable of accurately measuring and analyzing the gas flow and composition flowing t...

Claims

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Application Information

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IPC IPC(8): G09B23/28
Inventor 代冰赵洪文康健陈少纯毕振波
Owner THE FIRST HOSPITAL OF CHINA MEDICIAL UNIV
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