DETACHABLE INJECTION DEVICE

摘要

PURPOSE: A detachable drug injection device is provided to form compactly a surgical operation part into a pen type shape to eliminate resistance or fear and separates a surgical operation part from a driving part. CONSTITUTION: A detachable drug injection device comprises a case(11), a first driving cylinder(12), a rod(19), a housing(31), a second cylinder, a driving unit(3), and an air supplying unit. The first cylinder is connected to the case in which has a space. The rod is protruded to the outer by being connected to the first cylinder. The injection rod includes an injection needle by being arranged in the rod. The driving unit is coupled with the second cylinder and includes a pressure hole to press the piston of the injection needle by being mounted on the outer of the housing. The air supplying unit supplies an air pressure to the first cylinder and the second cylinder.