患者,男,55岁。因右下肺癌切除术后半年,多发性骨转移引起疼痛,用吗啡和双氢埃托啡等多种镇痛药物不满意,采用硬脊膜外腔置管连续点滴镇痛复合液。选择L_(2～3)椎间隙穿刺置管,连接输液器滴注镇痛液。每15日应用抗生素3日。镇痛复合液内含0.9％生理盐水350ml,2％利多卡因100ml,0.75％布比卡因50ml,地塞米松50mg,吗啡20mg。滴注速度视 Patient, male, 55 years old. Six months after the resection of right lung cancer, multiple bone metastases caused pain, and various analgesic drugs such as morphine and dihydroetorphine were unsatisfactory, and an epidural anesthesia was used to place continuous analgesia. L_(2~3) intervertebral puncture catheter was selected and infusion set was infused with analgesic solution. Antibiotics were applied every 15 days for 3 days. The analgesic complex solution contained 0.9% normal saline 350 ml, 2% lidocaine 100 ml, 0.75% bupivacaine 50 ml, dexamethasone 50 mg, and morphine 20 mg. Dripping speed