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背心式排痰機作用原理:
通過模擬正(zheng)常生理(li)咳(ke)嗽(sou)的原理(li),將(jiang)患者所穿(chuan)專用(yong)(yong)充(chong)氣(qi)(qi)(qi)背(bei)心用(yong)(yong)導氣(qi)(qi)(qi)軟管(guan)連接到(dao)高(gao)速脈沖泵上,并快速地(di)充(chong)氣(qi)(qi)(qi)和放氣(qi)(qi)(qi),使(shi)患者胸(xiong)壁發生有規律的舒張運動,患者氣(qi)(qi)(qi)道和肺部發生自(zi)主的震顫氣(qi)(qi)(qi)流和定向引流力(li),促使(shi)呼吸道粘(zhan)液(ye)及(ji)各(ge)個肺葉深部代(dai)謝物(wu)松(song)弛(chi),液(ye)化、脫落(luo);并在定向引流力(li)的作用(yong)(yong)下(xia)將(jiang)已(yi)液(ye)化脫落(luo)的代(dai)謝物(wu)按(an)照選(xuan)擇的方向(如細支氣(qi)(qi)(qi)管(guan)→支氣(qi)(qi)(qi)管(guan)→氣(qi)(qi)(qi)管(guan))排出體外。
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