A kind of fixed device of bone barrier film and its locking tool,To simplify the installing step for commonly using the fixed device of bone barrier film,The fixed device of the bone barrier film includes: one increases fixator,Two ends of the growth fixator are respectively equipped with one first spiral shell mosquito portion and a ringwall,The outer peripheral surface of the ringwall forms one second spiral shell mosquito portion,And the inside of the ringwall opens up a first positioning hole； And a fixing piece,Two sides of the fixing piece are respectively equipped with a third spiral shell mosquito portion and a second location hole,The third spiral shell mosquito portion to screw togather what the second spiral shell mosquito portion,The aperture of the second location hole is identical as the first positioning hole.一種骨頭阻隔膜固定裝置及其鎖固工具，用以簡化習用骨頭阻隔膜固定裝置之裝設步驟，該骨頭阻隔膜固定裝置包含：一增長固定器，該增長固定器之二端分別設有一第一螺蚊部及一環牆，該環牆之外周面形成一第二螺蚊部，且該環牆之內部開設一第一定位孔；及一固定件，該固定件之二側分別設有一第三螺蚊部及一第二定位孔，該第三螺蚊部用以螺合於該第二螺蚊部，該第二定位孔之孔徑與該第一定位孔相同。
