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Simulated lung for detecting physiological closed-loop control function of breathing machine

A closed-loop control and ventilator technology, which is applied in the direction of respirators, drug devices, and other medical devices, can solve the problems that cannot be used to detect the PCLC function of ventilators, lack of simulated lungs and tidal volume measurement devices, etc.

Pending Publication Date: 2022-05-31
SHANGHAI UNIV OF MEDICINE & HEALTH SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the system is intended for clinical cardiopulmonary bypass, and cannot be used to detect ventilator PCLC function due to the lack of simulated lungs and tidal volume measurement devices

Method used

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  • Simulated lung for detecting physiological closed-loop control function of breathing machine

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

The concrete working process of the present embodiment is as follows: in the blood channel closed-loop part 10, in the blood bank 11 with anticoagulant added

The blood is under the action of the blood pump 13; it first flows through the air contact chamber 12, the purpose is to reduce the closed-loop blood flow in the working environment

The increasing oxygen content in the working environment and the decreasing carbon dioxide content in the closed-loop blood flow under the working environment, keep the blood

The oxygen content and the amount of carbon dioxide in it are within the specified range.

Then blood flows in from the inlet of the oxygenator blood channel 14, the direction of blood flow is from right to left, and the blood flows out after oxygenation

The oxygen content of the liquid is higher than that of the inflow, and a ventilator is installed at the outlet of the oxygenator 14 blood transfusion channel to detect the partial pressure of oxygen or

Probe 15 for...

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Abstract

The invention relates to a simulated lung for detecting a physiological closed-loop control function of a breathing machine, comprising a blood circulation system in which blood circulates; the gas circulation system is used for realizing circulation of oxygen in the gas circulation system; the gas circulation system and the blood circulation system are independent from each other; the membrane oxygenator is used for realizing blood oxygen exchange; the blood circulation system realizes blood circulation through oxygen combination of a membrane type oxygenator, and the gas circulation system realizes oxygen circulation through oxygen combination of the membrane type oxygenator; one end of the data acquisition system is connected with the blood circulation system to monitor blood data; and the gas circulation system is used for adjusting the ventilatory capacity according to the blood data. Compared with the prior art, the membrane type oxygenator and the water seal type simulated lung are combined to detect the breathing machine with the PCLC function, and the using accuracy, reliability and safety of the breathing machine can be improved.

Description

A simulated lung for detecting the physiological closed-loop control function of a ventilator technical field The present invention relates to the field of medical equipment, be specifically related to the simulated lung with oxygenation function, especially relate to a kind of A simulated lung for testing the physiological closed-loop control function of the ventilator. Background technique [0002] Respiratory support is one of the key means to save the lives of acute and critically ill patients. Therefore, the ventilator acts as an aid, support Even the medical equipment that replaces the human respiratory function, its status in the clinical front-line work such as first aid, postoperative recovery, and intensive care Very important. The closed-loop control ventilator currently in clinical use is mainly for feedback control of the mechanical properties of the lung, such as: ASV (suitable for Adaptive Support Ventilation), NAVA (Adjusted Ventilation Assist System)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00
CPCA61M16/0003A61M2209/02
Inventor 陈正龙薛昊轩李逸明李宪龙张春元
Owner SHANGHAI UNIV OF MEDICINE & HEALTH SCI