Abstract: An injection system has: a gasket having a plurality of engaging claws, wherein each of the engaging claws includes an inner surface S1 which defines a hole H having an inlet with an enlarged diameter and an outer surface S2 inclined in a direction away from a perpendicular line P passing through a center of the hole H, and the engaging claws are to be displaced between a widened position and a narrowed position; a ram to be inserted into the hole H so as to engage with the engaging claws; a cylinder, into which the gasket is to be inserted, contacting the outer surfaces S2; and an injection device configured to move the ram forward and injecting a chemical solution in the cylinder. An annular groove which serves as a starting point of deformation of the engaging claws is formed on the gasket.

Abstract: An injection system includes: a syringe having a cylinder to be filled with a chemical liquid, a flange projecting laterally from the cylinder, an end portion through which the chemical liquid passes when the chemical liquid is pushed out, and a syringe screw portion formed on a side opposite to the end portion; an adapter for holding the syringe, the adapter having a receiving portion for receiving the cylinder, a regulating wall for abutting the flange, and an adapter screw portion engaged with the syringe screw portion; and an injection device provided with a holder to which the adapter is to be attached. In this injection system, a tightening direction by the syringe screw portion and the adapter screw portion is set in a direction toward the end portion.

Abstract: In a chemical liquid injection conduit, there is a need to prevent a backflow of body fluid of a subject reaching the inside of a common conduit portion. This is solved by the chemical liquid injecting apparatus that includes: a common conduit portion that flows a chemical liquid from a chemical liquid injector to a replaceable conduit portion; a control device that controls the chemical liquid injector; and a flow blocking unit that is arranged inside the replaceable conduit or in a conduit of a boundary portion between the replaceable conduit and the common conduit portion, and by receiving a command from the control device, is switchable between an open state allowing a flow of the chemical liquid and a closed state blocking a flow of the chemical liquid.

Abstract: A control method of an interaction robot according to an embodiment of the present invention comprises the steps of: receiving a user input, by the interaction robot; determining a robot response corresponding to the received user input, by the interaction robot; and outputting the determined robot response, by the interaction robot, wherein the step of outputting the determined robot response includes the steps of: outputting a color matching to the received user input or the determined robot response to a light emitting unit, by the interaction robot; and outputting a motion matching to the received user input or the determined robot response to any one or more among a first driving unit and a second driving unit, by the interaction robot.