PROBLEM TO BE SOLVED: To provide a medicine injection system capable of surely injecting medicine of a quantity to be injected to a lesion part.SOLUTION: A medicine injection system includes: a treatment instrument 10 having a puncture needle which punctures a region of interest of an analyte and capable of discharging a liquid from the tip part a tissue property detection part having a detection part for detecting a detection value according to the load applied to the puncture needle from the outside depending upon a pressure change of the interior of the puncture needle, a pressure detection part for obtaining the detection value of the load detected by the detection part and converting it to a pressure value and a comparing part for comparing the pressure value obtained by the pressure detection part with a threshold to thereby detect the tissue property in the punctured part of the puncture needle on the basis of the comparison result of the comparing part and a control part for conducting the control for discharging medicine from the puncture needle on the basis of the tissue property detection result by the tissue property detection part.COPYRIGHT: (C)2014,JPO&INPIT【課題】注入すべき量の薬剤を病変部に確実に注入することが可能な薬剤注入システムを提供すること。【解決手段】被検体の関心部位を穿刺して、先端部から液体を放出可能な穿刺針を有する処置具10と、外部から穿刺針に加わる荷重に応じた検出値を、該穿刺針の内部の圧力変化によって検出する検出部と、検出部が検出した荷重の検出値を取得して圧力値に変換する圧力検出部、および該圧力検出部が取得した圧力値と閾値とを比較する比較部を有し、比較部の比較結果に基づいて穿刺針の穿刺部分における組織性状の検出を行なう組織性状検出部と、組織性状検出部による組織性状の検出結果に基づいて、穿刺針から薬剤を放出するための制御を行う制御部と、を備えた。【選択図】図1
