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High-frequency oscillation respiratory airflow generation method and respiratory support equipment

A technology of high-frequency oscillation and generation method, which is applied in the field of medical equipment, can solve problems such as inability to be transported effectively, and achieve the effects of saving resources, improving output capacity, and improving performance

Active Publication Date: 2021-04-27
HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent realizes the high-frequency oscillation of the airflow, the oscillating air pressure is still obtained in the form of an oscillating piston, and a large part of the oscillating air pressure output is absorbed by the oscillating airflow generating device and the breathing circuit and cannot be effectively delivered to the patient's airway

Method used

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  • High-frequency oscillation respiratory airflow generation method and respiratory support equipment
  • High-frequency oscillation respiratory airflow generation method and respiratory support equipment
  • High-frequency oscillation respiratory airflow generation method and respiratory support equipment

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Effect test

Embodiment 1

[0036] The invention provides a method for generating a high-frequency oscillating respiratory airflow, the steps of which include:

[0037] S1: within a certain period of time, the fan drive controller 4 controls the fan 3 to output a constant airflow Q total ;

[0038] S2: Constant air flow Q total The airflow after passing through the diverter 5 is discharged in a oscillating form under the action of the discharge device, and the airflow is the oscillating discharge airflow Q vent ;

[0039] S3: Constant air flow Q total Another path of airflow after passing through the shunt 5 is output to the patient side through the pipeline, and this path of airflow is the respiratory airflow Q rep , according to Q rep =Q total -Q vent Obtain an oscillating respiratory airflow that is opposite in phase to the waveform of the oscillating deflated airflow. The invention is based on the total constant gas flow Q total If one of the sub-flows changes, the other sub-flow will also c...

Embodiment 2

[0046] This reference figure 1 , the invention also provides a respiratory support device adopting the method for generating the above-mentioned high-frequency oscillating respiratory airflow, including a fan 3, a fan drive controller 4 and a flow divider 5, and the fan drive controller 4 is used to control the fan 3 in different time periods The constant airflow of different flow values ​​is output inside, the air inlet of described diverter 5 is connected with the air outlet of blower fan 3, and the first air outlet of described diverter 5 is connected with breathing pipeline, and described breathing pipeline is used for The patient end delivers respiratory airflow; the second air outlet of the shunt 5 is connected with a discharge device, and the discharge device is used to release the oscillating discharge airflow with a preset frequency and a preset amplitude. Specifically, in this implementation In the example, the air source enters the respiratory support equipment thro...

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Abstract

The invention provides a high-frequency oscillation respiratory airflow generation method and respiratory support equipment. According to the high-frequency oscillation respiratory airflow generation method, a fan only needs to output constant airflow Qtotal in a given time period; then the constant airflow is divided by a flow divider; one way of airflow is discharged in an oscillation form under the action of a flow discharge device, and the airflow is discharge airflow Qvent; the other way of airflow is output to a patient end through a pipeline, and the airflow is respiratory airflow Qrep, and oscillation respiratory airflow opposite to the discharged airflow in waveform phase is obtained according to Qrep=Qtotal-Qvent; by such arrangement, the fan only needs to output the constant airflow within a given time period, and thus the control requirement on a fan driving controller is low, and the calculated amount is small; and meanwhile, the fan outputs the constant airflow, so that the influence of the fan on the oscillation airflow is reduced, and the output capacity of the oscillation airflow is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a method for generating high-frequency oscillating respiratory airflow and respiratory support equipment. Background technique [0002] The effectiveness of the ventilator in the treatment of respiratory diseases and the significant reduction in the mortality rate of patients have attracted the attention of the medical and health departments and the favor of patients since its inception. In recent years, with the emergence of factors such as air pollution and aging population, the number of patients suffering from respiratory diseases is increasing, and the market demand for ventilators is also increasing. Especially in the outbreak of infectious respiratory diseases such as the novel coronavirus pneumonia (COVID-19) in 2019, ventilators, as important medical equipment, have made important contributions in the process of fighting against the epidemic and savin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00A61M16/10A61M16/20
CPCA61M16/10A61M16/105A61M16/201A61M16/20A61M16/0003Y02B30/70
Inventor 戴征袁越阳周理曾棚刘炜
Owner HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD