| 摘要 |
The invention aims to provide an assisting tool (1) for pressing a piston (5) while fixing in place a syringe or a similar instrument which contains a highly viscous chemical agent, so as to extrude the chemical agent, as well as a method for extruding a chemical agent by use of the same. A chemical-agent extrusion assisting-tool (1) includes a tool body (2) in the form of a cylindrical body having a space (21) formed therein for accommodating a tubular container (4), such as a syringe, which contains a highly viscous chemical-such as calcium-phosphate-based cement formed through kneading of calcium phosphate powder and a kneading liquid composed of a polysaccharide-containing aqueous solution-and has an outlet formed at its bottom end, the cylindrical body having a cylindrical space (22) formed therein in such a manner as to open at an upper end surface thereof; and a pusher (3) including a handle portion (31) for pressing a piston (5) to be inserted into the tubular container (4), and a tubular body (32) to be screw-threadedly engaged with the tool body (2) and disposed on a side of the handle portion (31) which presses the piston (5). The handle portion (31) of the chemical-agent extrusion assisting-tool (1) is rotated so as to press the tubular body (32) into the cylindrical space (22) and so as to press the piston (5) into the tubular container (4), thereby extruding the chemical agent from the tubular container (4). The invention also aims to provide a method for extruding a chemical agent using the chemical-agent extrusion assisting-tool (1), a kneader for use in preparing the chemical agent and to form the container (4) from which the chemical agent is to be extruded using the chemical-agent extrusion assisting-tool (1), and a method for preparing and extruding a chemical-agent using the kneader and the chemical agent extrusion assisting-tool (1). <IMAGE> <IMAGE> |
