A hybrid augmented reality device for positioning in the sacrum, comprising a two-eyepiece unit, two photographing units and a control unit, characterized in that the control unit receives 3D scan data of a patient's foot through a communication interface, The 3D scan data is transmitted to the binocular unit through an image interface to generate a 3D virtual image of the foot. The 3D virtual image of the foot has an image of the fractured cheekbones, and the control unit is based on the two photographs. The unit provides a tracking and positioning function, so that the 3D virtual image of the foot can overlap with the 3D realistic image of one of the patient's feet with a metatarsal clamp to generate a 3D augmented reality image of the foot. The user can insert a bone nail into the fractured sacrum through a guided trajectory provided by the 3D augmented reality image.一種用於蹠骨內定位的混合擴增實境裝置，具有二目鏡單元、二攝影單元及一控制單元，其特徵在於：該控制單元係藉由一通信介面接收一病患腳掌的3D掃描資料，再將所述的3D掃描資料經由一影像介面傳送至所述二目鏡單元以產生一3D腳掌虛擬影像，該3D腳掌虛擬影像具有一骨折蹠骨之影像，且該控制單元係藉由所述二攝影單元提供一追蹤定位功能，以使該3D腳掌虛擬影像能和設置有一蹠骨夾持件之該病患腳掌之一3D腳掌現實影像重疊以產生一3D腳掌擴增實境影像，俾利一手術操作者能夠藉由該3D擴增實境影像所提供的一導引軌跡將一骨釘插入該骨折蹠骨中。
