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主动脉内气囊反搏是一种机械性左心辅助疗法,国外已广泛应用于冠状动脉阻塞所致的心肌梗塞后休克和冠状动脉搭桥手术前后心脏功能较差的病人。所用主动脉内反搏气囊必须符合下列要求:①壁薄柔软,对压力的反应敏感;②无组织反应且表面光洁,以减少血液有形成份的破坏;③牢固耐用。因反搏时每昼夜气囊须在一定正负压下胀缩十万次以上,一旦气囊破裂,气体进入血液会招致严重后果;④延伸性小,每次膨胀后容量须恒定。
Intra-aortic balloon pump is a mechanical left heart auxiliary therapy abroad has been widely used in coronary heart disease due to myocardial infarction after myocardial infarction and coronary artery bypass graft surgery patients with poor heart function. The intra-aortic Eppendorf balloon must meet the following requirements: ① thin and soft wall, sensitive to the pressure response; ② no tissue reaction and smooth surface to reduce the destruction of blood visible components; ③ strong and durable. Because of counter-stroke when the balloon every day and night under certain positive and negative pressure expansion and contraction of more than 100,000 times, once the balloon rupture, gas into the blood can cause serious consequences; ④ extension of small, each expansion capacity to be constant.