PROBLEM TO BE SOLVED: To provide a low-invasion medical device for removing foreign matter in a blood vessel which certainly captures and removes foreign matter in a blood vessel.SOLUTION: A medical device 1 for removing foreign matter in a blood vessel is used so as to remove embolus objects 102 from in a blood vessel 100 by being inserted into the blood vessel 100. The medical device 1 for removing the foreign matter in a blood vessel includes: a device body 2 having a first flow passage 23 through which blood 101 passes toward the proximal end side, a second flow passage 24 through which the blood 101 passes toward the distal end side, and a communication passage 25 for communicating the first flow passage 23 and the second flow passage 24, and through which the blood 101 passes toward the second flow passage 24 from the first flow passage 23 a suction/discharge means 3 sucking the blood 101 into the first flow passage 23 together with the embolus objects 102, and discharging the sucked blood 101 into the blood vessel 100 through the second flow passage 24 and a filter member 4 provided in the communication passage 25, for making the blood 101 pass therethrough, prevent the embolus objects 102 from passing therethrough, and capturing the embolus objects 102 not passing through the filter member 4.COPYRIGHT: (C)2013,JPO&INPIT【課題】低侵襲で、血管内の異物を確実に捕捉、除去することができる血管内異物除去用医療器具を提供すること。【解決手段】血管内異物除去用医療器具1は、血管100内に挿入して血管100内から塞栓物102を除去するのに使用されるものである。血管内異物除去用医療器具1は、血液101が基端側に向かって通過する第1の流路23と、血液101が先端側に向かって通過する第2の流路24と、第1の流路23と第2の流路24とを連通し、第1の流路23から第2の流路24に向かって血液101が通過する連通路25とを有する器具本体2と、第1の流路23に血液101を塞栓物102ごと吸引するとともに、その吸引した血液101を第2の流路24を介して血管100内に吐出する吸引・吐出手段3と、連通路25に設けられ、血液101は通過するが、塞栓物102は通過せず、その通過しない塞栓物102を捕捉するフィルタ部材4とを備える。【選択図】図2
