Measuring device for respiratory centre drive response for chemical stimulation

Abstract

The invention provides a measuring device for respiratory centre drive response for chemical stimulation. The measuring device comprises a Y-shaped pipeline (1), wherein in a working state, the Y-shaped pipeline (1) comprises an end (11) near a human body and an end (12) far from the human body; the end (12) far from the human body comprises a gas inlet end (121) and an expiration end (122); afterbeing combined, the gas inlet end (121) and the expiration end (122) are connected to the end (11) near the human body to form the Y-shaped pipeline (1); an end part of the gas inlet end (121) is connected to a multi-way tube (2); multiple sub ends (21) of the multi-way tube (2) are respectively connected to multiple gas sources (4) through multiple elastic gasbags (3); the gas inlet of the Y-shaped pipeline is provided with a gas inlet source, and the gas outlet of the Y-shaped pipeline is providedwith an end-expiration carbon dioxide concentration / oxygen concentration sensing probe and a portable lung functional instrument. The measuring device is simple in structure, is strong in function, is convenient to operate, and has an extremely high commercial value.

Description

technical field [0001] The invention relates to the technical field of medical equipment control, in particular to a device for measuring the reactivity of the respiratory center to chemical stimulation. Background technique [0002] In different environments, people's respiratory center drive (P0.1), minute ventilation (VT), partial pressure of oxygen / partial pressure of carbon dioxide, etc. have a wide range of potential applications in existing medicine, but how to obtain These indicators have become difficult problems in medicine. [0003] At present, there is only the measurement of oral blocking pressure (P0.1) in the resting state in the air, or the driving of the respiratory center after hypoxic stimulation by repeated breathing method (Rebuck and Cambell) or high carbon dioxide stimulation by Read method. (P0.1) and minute ventilation (VT) are obtained, but the determination of oxygen partial pressure / carbon dioxide partial pressure in this method requires arterial...

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Problems solved by technology

[0003] At present, there is only the measurement of oral blocking pressure (P0.1) in the resting state in the air, or the driving of the respiratory center after hypoxic stimulation by repeated breathing method (Rebuck and Cambell) or high carbon dioxide stimulation by Read method. (P0.1) and minute ventilation (VT) are obtained, but the determination of oxygen partial pressure / carbon dioxide partial pressure in this method requires arterial blood gas analysis, which is an invasive operation and dynamic monitoring cannot be repeated; and repeated breathing method It is difficult to keep the partial pressure of carbon dioxide constant when producing low oxygen in medium. Similarly, it is difficult to fix the partial pressure of oxygen level when inhaling high carbon dioxide stimulation, resulting in unsatisfactory and accurate measurement results.

[0004] The common respiratory system detection devices on the market today cannot monitor the specific situation of the end-tidal partial pressure of oxygen and partial pressure of carbon dioxide at the same time, and cannot simultaneously measure the oral blocking pressure P0.1, tidal volume and minute ventilation

[0005] Therefore, there is currently a lack of non-invasive and accurate measurement devices for the respiratory center-driven responsiveness to inhalation of a specific chemical stimulus in a certain pathophysiological state in clinical practice, and there is no one that can solve the above technical problems. A simple design, An assay device capable of good assay results, in particular, does not have an assay device for the responsiveness of the respiratory center drive to chemical stimuli

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