Air embolism and emergency position demonstration heart model
An air embolism and model technology, applied in the field of teaching instruments for medical schools and clinics, can solve problems such as failure to cooperate with education, accidents, failure to reflect heart changes, etc., and achieve the effect of reducing accidents
Active Publication Date: 2017-03-29
THE FIRST AFFILIATED HOSPITAL ZHEJIANG UNIV COLLEGE OF MEDICINE
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Problems solved by technology
Secondly, clinically some patients will not cooperate with the relevant theoretical infusion education, causing unnecessary accidents
Existing heart models usually only imitate the composition of the various organs of the heart, but fail to reflect the changes inside the heart caused by air embolism
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[0009] like figure 1 , 2 As shown, a model of the heart is made by simulating the shape of the human heart with a transparent material, and the arteries and veins are installed in corresponding positions according to the structural characteristics of the human heart and blood vessels. Wherein the opening ends of the superior vena cava 6 and the inferior vena cava 8 models are respectively closed with a cover 7 made of silica gel material, but the nipple of the syringe can penetrate the cover 7 for gas injection, and the seal of the cover 7 can be closed automatically after exiting.
[0010] In the model of the superior vena cava 6 and the inferior vena cava 8, two air injection tubules 5 are respectively connected. The end goes directly to the right ventricle 4, representing the way for air to reach the right ventricle 4 from the peripheral vein and for gas injection during demonstration. The outlet end of the pulmonary artery 1 connected with the right ventricle 4 also has ...
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The present invention discloses a heart model for demonstration of air embolism and first aid postures. The heart model includes a heart shell model, a superior / inferior vena cava model, a pulmonary artery model and an aorta model, wherein the heart shell model is provided inside with four cardiac chambers and two atrioventricular valves. The superior / inferior vena cava model, the pulmonary artery model and the aorta model are connected respectively with a right atrium, a right ventricle and a left ventricle. Entrances of conduits representing the superior and inferior venae cavae each are provided with a silica-gel seal, and each are provided with a small tube which penetrates through the atrioventricular valves to reach directly at a gas injection small tube of the right ventricle. An entrance of a conduit representing the pulmonary artery is also provided with a silica-gel seal cap resistant to puncture. The heart model for demonstration of air embolism and first aid postures can offer visual and vivid demonstration of the process of air embolism in the heart, therefore meeting the need for medical teaching and practice.
Description
technical field [0001] The invention is a teaching instrument for medical schools and clinics, in particular an air embolism demonstration and first aid. Background technique [0002] Air embolism is a serious and urgent reaction among infusion reactions. If the amount of air entering is large, the air blocks the entrance of the pulmonary artery in the right ventricle, so that blood cannot enter the lungs for gas exchange, causing severe hypoxia and sudden death, and first aid treatment must be given immediately on the left side with the head down and feet up. In teaching practice, a group of schematic pictures are often used to explain the process and principle of air embolism, emergency treatment methods and purposes, which are relatively abstract, and students can only memorize them by rote. In medicine, there are many positions to deal with diseases, and it is easy to remember without a thorough understanding confused. Secondly, clinically some patients will not cooper...
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IPC IPC(8): G09B23/28
Inventor 王薇徐佳敏
Owner THE FIRST AFFILIATED HOSPITAL ZHEJIANG UNIV COLLEGE OF MEDICINE