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用雄性SD大鼠30只，分成正常组、5个创伤组、2个再创伤组、封闭组和封闭对照组，每组3只，以截肢造成创伤痛。创伤组在水含氯醛麻醉下于右踝关节下05cm处截肢，清醒后放回笼内喂养；再创伤组取材前2／J’时同法于残端上O．3cm处再次截肢；封闭组先以1／普鲁卡因和95％酒精各O．s
Thirty male SD rats were divided into normal group, 5 trauma group, 2 trauma group, occlusion group and closed control group, 3 in each group. Traumatic pain was caused by amputation. The traumatic group was amputated at 05cm under the right ankle under water-containing chloral hydrate anesthesia and then fed back into the cage after awake. The trauma group was also on the stump at 2 / J ’before drawing. Amputation amputation at 3cm; first closed group with 1 / procaine and 95% alcohol each O. s