The invention relates to a measuring device for centrodes of a knee joint Primarily, a base is provided with a seat portion and a power source, and transmission wheels are arranged on two sides of the seat portion. The transmission wheels are connected to and driven by the power source through a linking member. Furthermore, a measuring seat is assembled on the front of the seat portion, and driving wheels are disposed on two sides of the measuring seat. The driving wheels are engaged with the transmission wheels, and a measuring board is disposed between the driving wheels. The first angle encoder is connected to the driving wheel to actuate. The measuring board is further provided with length measures, and movable plates are arranged on the measuring board corresponding to the length measures. Moreover, a foot pedal is pivoted on the bottom of the movable plates, and the second angle encoder is provided on the joint between the movable plated and the foot pedal. Accordingly, it can proceed with non-invasive measurement without radioactive hazards, and it has higher precision to obtain the measuring result immediately, so as to increase the practicability and efficiency for the whole implementation.本發明係有關於一種膝關節極心線量測裝置,其主要係於一底座上設有坐椅部,且於該底座設有動力源,並於坐椅部外側設有傳動輪,於動力源與傳動輪間則以連動件予以連結帶動,另於該坐椅部前端組設有量測座,該量測座外側設有驅動輪,令驅動輪與傳動輪相嚙合,且於驅動輪連結設置有量測板,並設有第一角度解碼器與驅動輪連結動作,於該量測板上另設有長度量測器,且亦於量測板上對應長度量測器活動設有移動板,再於移動板底端樞設有腳踏板,並於移動板與腳踏板樞設結合處設有第二角度解碼器;藉此,以達到非侵入式進行量測,且無放射性危險存在,並於量測上精密度較高,可立即獲得量測結果,而在其整體施行使用上更增實用功效特性者。(1)‧‧‧底座(11)‧‧‧坐椅部(111)‧‧‧滑軌(2)‧‧‧動力源(21)‧‧‧傳動輪(211)‧‧‧連動件(22)‧‧‧傳動輪(221)‧‧‧連動件(3)‧‧‧量測座(31)‧‧‧驅動輪(32)‧‧‧驅動輪(33)‧‧‧量測板(34)‧‧‧第一角度解碼器(35)‧‧‧長度量測器(36)‧‧‧移動板(37)‧‧‧腳踏板(38)‧‧‧第二角度解碼器
