To introduce a method of placing a catheter into the rat external jugular vein for collecting blood samples and administration of therapeutic drugs in the studies on pharmaceutical toxicokinetics.

• 为解决药物毒代动力学实验中对大鼠静脉反复给药、取血的操作问题,采用颈外静脉插管的方法在动物体内埋入导管,通过此管来完成给药、取血的工作。