PROBLEM TO BE SOLVED: To provide a vision regeneration assisting apparatus capable of keeping the excellent connection state of an electronic circuit and a substrate through an installation base, preventing the invasion of body fluid to the electronic circuit and being implanted for a long period of time with high reliability.SOLUTION: The vision regeneration assisting apparatus includes: the substrate wherein stimulation electrodes for electrically stimulating the retina are respectively installed at one end of a plurality of traces a control part comprising a multiplexer for controlling electric stimulation pulses to be transmitted to the respective stimulation electrodes the installation base having a hermetic bottom member for sealing the control part and the installation surface of the control part and a contact surface with the substrate, and comprising a ceramic sintered body having a plurality of through-holes in the thickness direction in order to electrically connect the control part and the traces and an inner conductor provided with a first conductive member wherein silver, molybdenum or tungsten is filled to a predetermined depth from an opening formed on the installation surface side of the control part as the main material of the conductive material, and a second conductive member wherein platinum or gold is filled in the remaining through-holes not filled with the first conductive member as the conductive material.COPYRIGHT: (C)2011,JPO&INPIT【課題】 設置台を介して電子回路と基板との接続状態を良好に保ち、電子回路への体液の侵襲を防ぎ高い信頼性で長期埋植できる視覚再生補助装置を提供する。【解決手段】 視覚再生補助装置は、複数の配線の一端に網膜を電気刺激する刺激電極が各々設置される基板と、各刺激電極に送信する電気刺激パルスを制御するマルチプレクサからなる制御部と、制御部を封止するためのハーメチック用の底部材及び制御部の設置面と基板との接触面とを有し,制御部と配線との電気接続のため肉厚方向に複数の貫通孔を有するセラミックス焼成体からなる設置台と、銀、モリブデン又はタングステンを導電材料の主材として制御部の設置面側に形成される開口から所定の深さまで充填される第1導電部材と、プラチナ又は金を導電材料として第1導電部材で充填されていない残りの貫通孔に充填される第2導電部材とを有する内部導体を備える。【選択図】 図3
