Airway resistance measuring system and method

An airway resistance and pipeline technology, which is applied in the field of biomedical engineering to achieve the effects of convenient testing, accurate results and low measurement costs

Inactive Publication Date: 2020-01-24
合肥中科博谐科技有限公司
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[0005] The purpose of the present invention is to provide a system and method for measuring airway resistance, so as to solve t...

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] see Figure 1-Figure 2 , an embodiment provided by the present invention: a system for measuring airway resistance, comprising: gas flow detection module 1, pressure signal detection module 2, control valve one 3, control valve two 4, constant pressure vessel 5, micro-processing device 6 and pipeline 7, wherein:

[0018] The gas flow detection module 1 is used to detect the respiratory flow of the subject, and the gas flow detection module 1 adopts a g...

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Abstract

The invention discloses an airway resistance measuring system and method and relates to the technical field of biomedical engineering. At a (0-t) moment, a control valve I is in a turning-on state anda control valve II is in a turning-off state by a microprocessor, and a pipeline communicates with an external atmosphere; at a (t+<delta>t) moment, the control valve I is in a turning-off state andthe control valve II is in a turning-on state by the microprocessor, and the pipeline communicates with a constant pressure container; a gas flow detected by a gas flow detection module at the t moment is Q0 and the gas flow detected at the (t+<delta>t) moment is Q1; an oral pressure detected by a pressure signal detection module at the t moment is P0 and the oral pressure detected at the (t+<delta>t) moment is P1; and the microprocessor calculates airway resistance Ro at the t moment according to acquired gas flow signals and pressure signals. The airway resistance measuring system and methodaim at realizing simple and convenient measurement of the airway resistance and solve the problem that plethysmography has certain limitation in clinical promotion.

Description

technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to a system and method for measuring airway resistance. Background technique [0002] Airway resistance refers to the pressure difference generated by unit flow in the airway, and is usually calculated by (oral airway pressure-alveolar pressure) / flow rate. Clinically, airway resistance can better reflect airway obstruction, and can also assist in judging whether the cause of decreased pulmonary ventilation function comes from airway disease. [0003] Plethysmography is currently the most commonly used method for measuring airway resistance. This method mainly uses Boyle's law to calculate alveolar pressure, and then calculates airway resistance according to the definition of airway resistance. However, this kind of measuring equipment is very expensive, and the volume of the equipment is relatively large, and the technical requirements are relatively high, and it is ...

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Application Information

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IPC IPC(8): A61B5/08A61B5/087
CPCA61B5/08A61B5/087
Inventor 何子军王远孟良孟娜徐玉兵丁增辉陈焱焱周旭王彦彩李冕
Owner 合肥中科博谐科技有限公司
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