In configuring the capsule type medical device that is able to inject a drug solution into the body tissue, a pressing member for pressing a housing, a surface of the body tissue, the direction to protrude in a predetermined direction from the housing pressing member, it is projected that a driving part for pressing the body tissue surface to the pressing member while rotating the pressing member about an axis of rotation parallel with, provided in the pressing member, under the rotation of the pressing member by the driving unit, the body tissue surface providing a piercing member needle that pierces the tissue in said body along a direction inclined with respect to, injected into said body tissue in a chemical solution.体内組織に薬液を注入することができるカプセル型医療装置を構成するにあたり、筐体と、体内組織の表面を押圧する押圧部材と、押圧部材を筐体から所定方向に突出させ、この突出させる方向と平行な回転軸を中心に押圧部材を回転させつつ該押圧部材に体内組織表面を押圧させる駆動部と、押圧部材に設けられ、駆動部による押圧部材の回転駆動のもとに、体内組織表面に対し傾斜した方向から該体内組織を穿刺し、薬液を該体内組織に注入する針状の穿刺部材とを設ける。
