Method for adaptively adjusting buck-boost speed, application thereof and respiratory support equipment

A technology for self-adaptive adjustment and equipment support. Applied in the field of medical devices, it can solve problems such as reduced platform pressure, reduced user experience, and unfavorable patient rehabilitation, achieving the effect of long maintenance time and good user experience.

Inactive Publication Date: 2021-01-05
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

In the prior art (CN108310563 a kind of respiratory support equipment), the boosting speed is adjusted by manually setting different gears, usually 1 to 6 gears are adjustable, but it is usually difficult to achieve the best fixed 6 gears The degree of adaptation, and repeated adjustments are required to find a more suitable boost gear
[0003] When users use respiratory support equipment, due to individual differences, some users need to increase the pressure quickly, and some users cannot tolerate rapid pressure increase. A fixed buck-boost speed, no matter how the user’s air resistance, compliance and other respiratory mechanical parameters change, the ventilator will adjust the buck-boost according to the same parameters, which will make the patient’s breathing uncomfortable and not conducive to the patient’s recovery
[0004] Traditionally, when the user's respiratory mechanical parameters change, it will inevit...

Method used

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  • Method for adaptively adjusting buck-boost speed, application thereof and respiratory support equipment
  • Method for adaptively adjusting buck-boost speed, application thereof and respiratory support equipment

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Effect test

Embodiment 1

[0035] refer to figure 2 , the present invention provides a method for adaptively adjusting the buck-boost speed, the steps comprising:

[0036] S1: Under the condition that the air resistance of the user is R0 and the compliance is C0, the measured initial step-down speed is V0. At this time, the step-down time of the respiratory support equipment is T0;

[0037] S2: The ventilator is in the treatment state. When the step-up and step-down speed is V, the processor obtains the actual step-up and step-down time T of the user. At this time, the time-consuming deviation of step-up and step-down is Td=T-T0;

[0038] S3: Set the pressure deviation threshold X%, and the processor judges whether |Td| / T0

[0039] S31: If yes, end the adjustment and maintain the current buck-boost speed V;

[0040] S32: If not, in the user's next breathing cycle, the buck-boost speed is performed at the speed of V1=V-M*V0, where M=Td / T0, and the time for the buck-boost is T1;

[0041] S321: Retur...

Embodiment 2

[0047] Respiratory support equipment mainly provides fresh air to patients with respiratory disorders, in which lung compliance and lung air resistance are two important parameters. Lung compliance and lung resistance (ie, air resistance) can not only characterize the condition of the patient's lungs, but also can be used to establish a mathematical model of the breathing circuit, which plays a decisive role in the accuracy and precision of pressure-controlled ventilation and its extended ventilation mode . At present, it is difficult to directly calculate the compliance of the lung and the resistance of the pipeline. In general, the flow rate and pressure of the breathing circuit are used to estimate. In the process of estimation, the pressure value obtained by the exhalation end pressure sensor is generally used as the airway pressure, and the difference between the flow values ​​obtained by the inhalation end flow sensor and the exhalation end flow sensor is the flow rate v...

Embodiment 3

[0052] The present invention also provides a respiratory support device adopting the above-mentioned method for adaptively adjusting the buck-boost speed, including a host, a processor installed inside the host, and a memory. Time deviation, decompression speed and user's personal information, the processor is used to obtain and calculate the decompression time and the time difference between decompression and decompression, and also includes a pressure sensor and a timer, and the pressure sensor is used to detect The pressure value, the timer is used to record the buck-boost time, and the timer, pressure sensor and memory are all electrically connected to the processor.

[0053] As a preferred embodiment, the user's personal information includes personal social information and respiratory mechanics parameters, specifically, the respiratory mechanics parameters are air resistance R and compliance C.

[0054] The respiratory support device provided by the present invention, bec...

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Abstract

The invention provides a method for adaptively adjusting buck-boost speed, application thereof and respiratory support equipment. The method for adaptively adjusting buck-boost speed comprises the steps of measuring initial buck-boost speed V0 and buck-boost time T0 under the conditions of initial air resistance R0 and compliance C0 of a user, wherein according to the condition that the respiratory support equipment is in a treatment state, a processor obtains the actual buck-boost time T1 of the user, so that the buck-boost time difference Td that is equal to T1-T0 is obtained, then the processor measures whether |Td|/T0 is smaller than X% or not, and if not, performing buck-boost processing at a buck-boost speed of V1 that is equal to V-M * V0 in the next respiratory cycle of the user, and repeating the cycle until the condition that |Td|/T0 is smaller than X% is met. Therefore, it is guaranteed that the pressure maintaining time of a pressure curve platform is long, and the user experience is good.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method for self-adaptive adjustment of buck-boost speed and its application, and respiratory support equipment. Background technique [0002] When the respiratory support equipment is working, the user needs to provide high pressure when inhaling, and low pressure when exhaling. The speed of rising from low pressure to high pressure is the boosting speed. The shorter the time. In the prior art (CN108310563 a kind of respiratory support equipment), the boosting speed is adjusted by manually setting different gears, usually 1 to 6 gears are adjustable, but it is usually difficult to achieve the best fixed 6 gears The degree of adaptation, and repeated adjustments are required to find a more suitable boost gear. [0003] When users use respiratory support equipment, due to individual differences, some users need to increase the pressure quickly, and some users cannot tol...

Claims

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Application Information

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IPC IPC(8): A61M16/00
CPCA61M16/00A61M16/0003A61M2016/0027A61M2205/3331A61M2230/46
Inventor 戴征黄皓轩
Owner HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD
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