PROBLEM TO BE SOLVED: To favorably discharge gas internally present in a device during filling of a bone filling material.SOLUTION: A bone treatment system 10 includes: a shaft 30 that has a flow passage 38 that can distribute a bone filling material C to be placed in a space 108 of a radius 100 and a filling balloon 32 that communicates with the flow passage 38 at a distal end of the shaft 30 and that is filled with the bone filling material. Further, the bone treatment system 10 includes a gas discharge portion 46 that causes air (gas) inside the flow passage 38 to flow in a direction toward a proximal end rather than the filling balloon 32, when the bone filling material is supplied to the flow passage 38.COPYRIGHT: (C)2015,JPO&INPIT【課題】骨用充填材料の充填時にデバイスに内在する気体を良好に排出する。【解決手段】骨治療システム10は、橈骨100の空間108に留置される骨用充填材料を流通可能な流路38を有するシャフト30と、シャフト30の先端部で流路38に連通し骨用充填材料が充填される充填用バルーン32とを有する。さらに、骨治療システム10は、骨用充填材料を流路38に供給する際に、流路38内の空気(気体)を充填用バルーン32よりも基端方向に流動させる気体排出部46を備える。【選択図】図1
