Abstract: An infusion injection system wherein, when injecting a drug solution into a patient using an infusion set and an automatic infusion device, the automatic infusion device confirms various pieces of information regarding the infusion set in order to provide safe infusion for the patient, and to allow the user to assess the infusion information and manage a proper disposal procedure, wherein whether an infusion set is properly mounted is judged and if the judgment is positive, information stored in an IC tag attached to a drip tube 15 is read out by an IC tag reader unit 59 in an automatic infusion device 7, and information matching is verified between the read-out information and the information set beforehand for the automatic infusion device 7, and wherein control operations are performed only when the verification is a match.

Abstract: The present invention provides a digitizer for a fingertip tactile-sense input device to which switches can be added without having to increase the number of wires.

Abstract: To provide a fingertip tactile-sense input device in an input device having a plurality of keys within an extremely small range such as within a range of person's fingertip movement, which while being made extremely small and thin, enables key input while maintaining a sufficient click feeling, and also which is excellent for mass production. A base plate (50) has one dome spring (51) arranged at an approximate center of a side of a hole space, and a contact structure (52) on an inside of the dome spring (51). A surface sheet (20) is fixed to a flange (11) so that in a free state, this becomes approximately the same level as an other face of a frame (10), and is provided with a plurality of surface protrusions (21) deployed within a range in which the person's fingertip moves, and has flexibility, elasticity, and pliability.