PROBLEM TO BE SOLVED: To provide a placing system which uses a catheter for delivering a stretch resistant embolic device at a predetermined site within a blood vessel.SOLUTION: A medical device for placing the embolic device such as an embolic coil at the predetermined site within the blood vessel of a human body includes the delivery catheter and a flexible pusher member slidably disposed within the lumen of the catheter. The embolic device is retained within the delivery catheter by a mechanical interlocking mechanism which is attached to the distal end of the pusher member and includes a flexible engagement member extending through a retaining ring at the proximal end of the embolic device. A detachment member extends through an aperture at the distal end of the engagement member to lock the embolic device onto the pusher member. When the detachment member is withdrawn from the aperture of the engagement member, the engagement member is deformed to release the embolic device.COPYRIGHT: (C)2007,JPO&INPIT【課題】血管内の所定の部位に耐伸長性塞栓装置を送達するためのカテーテルを用いた配置システムを提供すること。【解決手段】人体の血管内の所定の部位に塞栓コイルなどの塞栓装置を配置するための医療装置であって、デリバリーカテーテル、および、このカテーテルの内腔内にスライド可能に配置された可撓性プッシャー部材を含む。塞栓装置は、プッシャー部材の遠位端部に取り付けられ、かつ塞栓装置の近位端部の保持リングを通る可撓性係合部材を含む機械式連結機構によってデリバリーカテーテル内に保持されている。分離部材が、係合部材の遠位端部の開口を貫通して塞栓装置をプッシャー部材にロックしている。分離部材が係合部材の開口から引き戻されると、係合部材が変形して塞栓装置が解放される。【選択図】図1
