Method, device and respirator for voltage stabilization of continuous positive pressure ventilation

A technology of positive pressure ventilation and pressure stabilization, which is applied in the field of continuous positive pressure ventilation and pressure stabilization devices, continuous positive pressure ventilation and pressure stabilization, and ventilators. problems, to achieve the effect of preventing violent fluctuations in pressure, reducing pressure collapse, and stabilizing waveforms

CN106730199AActive Publication Date: 2017-05-31HUNAN MICOME ZHONGJIN MEDICAL SCI & TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-05-31

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Abstract

The invention discloses a method, a device and a respirator for voltage stabilization of continuous positive pressure ventilation. The method comprises the following steps: receiving a flow rate of a respirable gas in a pressurized flow, which is measured by a flow sensor, according to a preset time interval; ensuring a second derivative of the flow rate of a preset time point; acquiring an average flow rate, air leakage, an inspiration tidal volume and inspiration time; judging whether the average flow rate is greater than the air leakage; if so, determining a gain value to be a product of a value of a quotient of the inspiration tidal volume divided by the inspiration time minus the air leakage and a first coefficient; if not, determining the gain value to be a product of a value of a quotient of the inspiration tidal volume divided by the inspiration time minus the air leakage and a second coefficient, wherein the first coefficient is greater than the second coefficient; determining a respiration vector which is a product of the gain value and the second derivative; and controlling a driving signal of a baseline configuration pressure generator on the basis of the respiration vector and a pressure generator. The method foresees a flow rate variation trend through the respiration vector, controls the flow rate of the current time point, and guarantees stable output pressure of the respirator.
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Description

technical field

[0001] The invention relates to the technical field of medical equipment, in particular to a method for constant positive pressure ventilation and pressure stabilization. In addition, the present invention also relates to a device for continuous positive pressure ventilation and pressure stabilization and a ventilator comprising the device. Background technique

[0002] CPAP stands for Continuous Positive Airway Pressure, which uses a mask to send continuous positive pressure airflow into the airway. The machine that gives oxygen in this way is called CPAP ventilator. Under spontaneous breathing conditions, the patient should have a stable respiratory driving force and an appropriate tidal volume, and artificially apply a certain degree of positive airway pressure throughout the breathing cycle, thereby helping to prevent airway collapse and increase functional residual volume. Improves lung compliance and increases oxygenation.

[0003] However, the curren...

Examples

Embodiment Construction

[0047] 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.

[0048] The core of the present invention is to provide a method for constant positive pressure ventilation and pressure stabilization, which can ensure the stability of the output pressure of the ventilator. Another core of the present invention is to provide a device for continuous positive pressure ventilation and pressure stabilization, which can ensure the stability of the output pressure of the ventilator. Another core of the present invention is to provi...