我院一台WFB-Ⅳ型体外反搏机出现故障:病人在接受治疗时感觉小腿发痛,身体与反搏频率不适,有恶心感。检查发现:主机充排按钮按下后,胸气囊和大腿气囊充排不正常,时冲时排,有时干脆不充排。气泵一开,未按充气键,小腿气囊就充气;按下 A WFB-IV type external counter-pulse machine in our hospital had a failure: The patient felt pain in the lower leg during treatment, and the body and counterpulsation frequency was uncomfortable and there was nausea. The inspection found that: After the main body filling button was pressed, the chest balloon and thigh airbag were not filled or discharged normally, and they were flushed when flushed, and sometimes they were not filled completely. When the air pump is on, if the air button is not pressed, the calf airbag is inflated;