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Closed-loop expectoration method and system for automatically titrating expectoration pressure

A technology for automatic titration and expectoration of sputum, which is applied in the fields of drug devices, medical equipment, and other medical devices to achieve the effects of evaluability, reduction of titration workload, and intuitive control.

Active Publication Date: 2019-07-23
RUXIN BEIJING MEDICAL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Aiming at the defect that the expectoration mode of the current MIE device must rely on user experience and repeated trial and error to titrate the expectoration pressure, the present invention proposes a closed-loop expectoration method that automatically titrates the expectoration pressure

Method used

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  • Closed-loop expectoration method and system for automatically titrating expectoration pressure

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Embodiment Construction

[0042]Embodiments of the present invention are described below with reference to the drawings, in which like parts are denoted by like reference numerals. In the case of no conflict, the following embodiments and the technical features in the embodiments can be combined with each other.

[0043] figure 1 The control principles of the method and system of the present invention are presented.

[0044] The starting point of the present invention is based on the basic mechanical principle of secretion movement: during expectoration, both the average cough flow rate in the negative pressure phase and the coughed out air volume in the negative pressure phase must reach a certain set value, so that it is possible to effectively remove the secretions in the airway. Coughing up secretions. The movement of the secretion is generated by the thrust of the airflow acting on it. The greater the thrust, the faster the secretion will accelerate; however, the duration of the thrust acting on...

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Abstract

The invention relates to a closed-loop expectoration method for automatically titrating expectoration pressure. The method comprises the following steps: S1, setting a reference value C2 of negative pressure phase flow-volume ring area namely F-V ring area of a user; S2, using an actual value R2 of the negative pressure phase F-V ring area of the computer user; and S3, comparing the reference value C2 of the negative pressure phase F-V ring area with the actual value R2 of the negative pressure phase flow-volume ring area to adjust negative phase pressure E-P and / or positive phase pressure I-P. The invention also provides a closed-loop expectoration system for automatically titrating expectoration pressure. The system comprises a reference value setting module, a real value calculation module, a comparison module and an adjustment module, wherein the reference value setting module sets the reference value C2 of the negative pressure phase flow-volume ring area namely the F-V ring area,the real value calculation module monitors and calculates the actual value R2 of the negative pressure phase F-V ring area, the comparison module compares the reference value C2 with the actual valueR2, and the adjustment module adjusts the negative phase pressure E-P and the positive phase pressure I-P based on the consequence from the comparison module. The expectoration method and system guarantee safer and effective expectoration.

Description

technical field [0001] The present invention relates to an expectoration machine, and more specifically, to a mechanical inflation and exhaust method and system for automatic closed-loop titration of expectoration pressure. Background technique [0002] Cough is a physiological mechanism for normal people to clear respiratory airway secretions. However, for some patients with cough dysfunction diseases, such as patients with neuromuscular diseases with reduced cough force and patients with mechanical ventilation intubation, it becomes very necessary to use some kind of external force to clear airway secretions. [0003] A mechanical inflation-exhaust (MI-E) device, commonly known as an expectorator, is a well-known device used to assist patients with an ineffective cough to clear their airways of noxious secretions. This device simulates the coughing physiological mechanism of normal people, and controls the pipeline connected to the patient (mask connection end, mouthpiece...

Claims

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Application Information

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IPC IPC(8): A61M16/00G16H40/63
CPCA61M2016/0027A61M2016/003A61M2205/3344A61M16/0006G16H40/63
Inventor 刘庆平高祥
Owner RUXIN BEIJING MEDICAL SYST CO LTD
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