A guiding device for minimally invasive pedicle screw insertion, comprises: two positioning rods for being fixed on a vertebra to provide two non-parallel rod bodies a positioning plate having a first positioning tube body, a second positioning tube body, an elongated lateral notch, and a plurality of sleeve assemblies, wherein the second positioning tube body has a longitudinal opening to communicate with the elongated lateral notch. Therefore, in the process of inserting one rod body of the two non-parallel rod bodies through the first positioning tube body, the other rod body may enter the second positioning tube body through the elongated lateral notch and the longitudinal opening, thereby completing a positioning procedure. The guiding device further includes a plurality of metal nails which are used after the positioning procedure is completed, wherein the plurality of metal nails are inserted into the vertebrae through the plurality of sleeve assemblies. After an inner sleeve of each of the sleeve assemblies is removed, a plurality of pedicle screws are guided into and screwed into the vertebrae.一種椎弓根螺釘微創定位裝置,具有:二定位桿,用以固定在一脊椎骨上以提供二非平行桿體;一定位板,具有一第一定位管體、一第二定位管體、一長形橫向缺口、及複數個套筒組合,該第二定位管體具有一縱向開口以與該長形橫向缺口連通,俾以在所述二非平行桿體之一桿體穿過該第一定位管體的過程中,使另一桿體藉由該長形橫向缺口及該縱向開口進入所述第二定位管體內,從而完成一定位程序;以及複數根金屬釘,用以在該定位程序完成後經由所述複數個套筒組合插入該脊椎骨,並在去除各所述套筒組合之一內套筒後引導複數根椎弓根螺釘鎖入該脊椎骨中。100‧‧‧定位桿110‧‧‧固定端111‧‧‧套接件112‧‧‧螺絲件121‧‧‧第一桿體122‧‧‧第二桿體130‧‧‧夾件200‧‧‧定位板210‧‧‧板體220‧‧‧第一定位穿孔221‧‧‧第一定位管體230‧‧‧第二定位穿孔231‧‧‧第二定位管體240‧‧‧導向穿孔241‧‧‧套筒組合242‧‧‧內套筒243‧‧‧外套筒250‧‧‧縱向開口260‧‧‧橫向缺口300‧‧‧金屬釘310‧‧‧椎弓根螺釘
