Demonstration model of simulating respiratory insufficiency caused by alveolar ventilation-perfusion imbalance

A respiratory insufficiency, model technology, applied in teaching models, educational appliances, instruments, etc., can solve problems such as difficulty in understanding dynamic processes and complex content for students

A respiratory insufficiency, model technology, applied in teaching models, educational appliances, instruments, etc., can solve problems such as difficulty in understanding dynamic processes and complex content for students

CN102402891AInactive Publication Date: 2012-04-04关真民
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  • Demonstration model of simulating respiratory insufficiency caused by alveolar ventilation-perfusion imbalance
  • Demonstration model of simulating respiratory insufficiency caused by alveolar ventilation-perfusion imbalance

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Experimental program
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Effect test

Embodiment Construction

[0023] A specific embodiment of the present invention provided by the accompanying drawings below will further describe its structure.

[0024] See attached figure 1 , the device consists of a heart model 1, a pulmonary artery branch model 8, an alveolar model 15, an alveolar wall capillary model 9, a pulmonary vein model 13 and a blood pool 14. The heart model 1 is divided into an inner cavity 2 and an outer cavity 3, and its outlet end is respectively pressed with an inner tube 6 and an outer tube 4, and the liquid flow of the inner and outer tubes is respectively controlled by the switch (7, 5). The inner tube 6 and the outer tube 4 form a The pulmonary artery branch model 8 extends downward to form the alveolar wall capillary model 9 at the bottom of the alveolar model. The alveolar wall capillary model 9 is divided into an upper cavity 10 and a lower cavity 12. The upper cavity 10 is formed by the continuation of the inner tube 6 of the pulmonary artery branch model 8. I...

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Abstract

The invention relates to a demonstration model of simulating respiratory insufficiency caused by alveolar ventilation-perfusion imbalance, which belongs to the medical teaching equipment, in particular the teaching aid of demonstrating respiratory insufficiency caused by alveolar ventilation-perfusion imbalance. The teaching aid is mainly composed of a heart model, outlet end of the heart model is connected with a pulmonary artery branch model composed of an outer tube and an inner tube, one end of an alveolar wall blood capillary model is connected with the pulmonary artery branch model while the other end is connected with a pulmonary vein model, and finally the models enter in a blood pond. A balloon simulation alveolar model forms a model system of demonstrating respiratory insufficiency caused by alveolar ventilation-perfusion imbalance. The demonstration model is simple in structure, convenient to operate, intuitive and easy to teach. Ability of the student to observe and analyze problem can be improved.

Description

technical field [0001] The invention belongs to medical teaching equipment, in particular to a model teaching aid for demonstrating a model of respiratory insufficiency caused by lung simulation alveolar ventilation and blood flow ratio imbalance. Background technique [0002] In the traditional teaching of respiratory insufficiency caused by the imbalance of alveolar ventilation and blood flow, the mechanism of occurrence is mainly explained by the lecture method: when the alveolar ventilation is insufficient, V / Q is significantly reduced, so that the arterial blood flowing through the alveoli is insufficient. Arterialization will be incorporated into arterial blood (called kinetic shunt or venous blood doping). When pulmonary artery disease can reduce the blood flow of the alveolar wall, V / Q is greater than normal, the affected alveolar blood flow is less and the ventilation is more, and the alveolar ventilation cannot be fully utilized to form a dead space (called dead sp...

Claims

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Application Information

Patent Timeline
04 Apr 2012
Publication
CN102402891A
IPC
G09B23/28
Inventors
关真民; 鹿勇