PROBLEM TO BE SOLVED: To collect tissue fluid from a living tissue and/or inject a liquid medicine into the living tissue and to measure an electric signal of the living tissue and/or give electric stimuli to the living tissue with one element to improve the freedom and position precision of directions and to increase the number of electrode channels without increasing volume so much.SOLUTION: The nervous electrode device has: a guide tube 11 which includes a tube part, a metal layer formed on an outer peripheral surface of the tube part, and a second insulation layer composed of a light sensitive insulation material that covers a part of the metal layer and includes an electrode area 11aa whose metal layer is exposed outside and a wiring area covered with the second insulation layer and a fluid mechanism part 12 for collecting the tissue fluid from the living tissue and/or injecting the liquid medicine into the living body. At least a part of the fluid mechanism part 12 is stored inside the guide tube 11.COPYRIGHT: (C)2010,JPO&INPIT【課題】生体組織からの組織液の回収及び/又は生体組織への薬液の注入と、生体組織の電気信号の測定及び/又は生体組織への電気刺激とを1つの素子で行うことができるとともに、それらの方向の自由度と位置精度とを向上させ、なおかつ、体積をさほど増加させることなく電極のチャンネル数を増加させる。【解決手段】チューブ部と、チューブ部の外周面に形成された金属層と、金属層の一部を覆う感光性絶縁材料からなる第2絶縁層とを含み、金属層が外部に露出した電極領域11aaと第2絶縁層に覆われた配線領域とを含むガイド管11と、生体組織からの組織液の回収及び/又は生体組織への薬液の注入を行う流体機構部12とを有し、ガイド管11の内部に流体機構部12の少なくとも一部が収納される。【選択図】図1
