PROBLEM TO BE SOLVED: To generate a signal for allowing a patient to remove a needle after injected medicament is locally dispersed from an injection site in the body of the patient in a medicament injection apparatus whereby self-administration of a dose of medicament is enabled.SOLUTION: This invention relates to a medicament injection apparatus, particularly suitable for use by those with diabetes in which, in use, once a desired dosage of medicament has been selected and expelled from the medicament cartridge into the body of the patient, the injected medicament is allowed to disperse locally from the injection site within the patients body. The time elapsed following the injection operation is measured, and an acoustic signal is generated at the end of a predetermined period during which medicament is permitted to disperse subsequent to the completion of an injection stroke.COPYRIGHT: (C)2010,JPO&INPIT【課題】薬剤の投与量を自己投与する薬剤注入装置において、注入された薬剤が患者の体内の注入箇所から局部に分散してから、患者が針を抜くようにするための信号を発生させること。【解決手段】本発明は、薬剤注入装置に関し、特に糖尿病患者による使用に適し、使用時に、一旦、薬剤の所望投与量が選定されると、薬剤カートリッジから患者の体内に注入され、注入された薬剤が患者の注入個所から局部に分散されるが、注入操作に続いて経過する時間を測定し、注入ストロークの完了後の薬剤が分散できる所定時間の終了時に音響信号を発生させる。【選択図】図1
