Medical instruments for intracavity, including a main body with a light source therein, a light conductor assembled on the main body, and a diagnosis and treatment accessory that extends from a position adjacent to the light conductor to a diagnostic area in the intracavity, wherein, the light provided by the light source can be entered into the intracavity by the conduction of the light conductor, thus, the diagnosis and treatment operation of the intracavity can be conveniently carried out by using the diagnosis and treatment accessory.一種腔內診療器械,包括內設有光源的本體,組合於該本體上的導光件,以及鄰近該導光件的位置延伸以進入腔內的診療區域的診療輔助件,其中,該光源所提供的光線可藉由該導光件的傳導而進入該腔內,以對該腔內的診療區域提供照明,從而便於利用該診療輔助件對該腔內的診療區域執行診療操作。1‧‧‧腔內診療器械11‧‧‧本體111‧‧‧組合結構113‧‧‧光源12‧‧‧導光件13‧‧‧開關14‧‧‧診療輔助件15‧‧‧裝設結構
