An anchoring device for anchoring a rod in a bone or a vertebra and for use with at least two rods having a different diameter is provided, the anchoring device (120) having a shaft (222) and a head (425) for connection to one of said rods (10), said head (425) being connected to said shaft (222) and having a recess (531) with a base (1140) and two substantially vertically extending legs (6,732,3338,39) defining a channel for receiving the rod in said channel, and a fixation element (5270) for clamping said rod (10) in said channel, wherein said fixation element and said base each have a contact surface (11405373) contacting said rod, the contact surfaces being shaped so as to be able to clamp any of the different rods.一種把桿件固定於骨骼或椎骨用之固定裝置,可用不同直徑之至少二桿件,固定裝置(1;20)具有軸部(2;22)和頭部(4;25),供連接於該桿件(10)之一,該頭部(4;25)係連接於該軸部(2;22),具有凹部(5;31)連基部(11;40),和實質上直立延伸之二股部(6,7;32,33;38,39)界定凹溝,把桿件容納於該凹溝,並有固設元件(52;70),把該桿件(10)夾持於該凹溝內,其中該固設元件和該基部各有接觸表面(11;40;53;73),與該桿件接觸,接觸表面造形可夾持任何不同桿件。10,10,10",10...桿件60...加壓元件61,62...股部70...固設元件73...凸部
