| 摘要 |
Provided is a minimally invasive emboli capture device which minimizes the influence of an embolus to the brain, in particular, in TAVI and which enables a smooth operation. A filter device 1 includes: an elongated shaft 2 which has a flexible intermediate coil wire 6 between a proximal filter wire 5 and a distal filter wire 7; a proximal filter 3 on the proximal filter wire; and a distal filter 4 on the distal filter wire. The intermediate coil wire is disposed extended between a downstream blood vessel and an upstream blood vessel so as to pass through a path of placement that leads to another downstream blood vessel. Both the filters have a contracted configuration for being delivered into the blood vessel and an expanded configuration for capturing an embolus inside the blood vessel. The proximal filter is oriented such that an inlet opening, for taking in the embolus, of a proximal filter body in the expanded configuration faces the distal side, and the distal filter is oriented such that an inlet opening, for taking in the embolus, of a distal filter body in the expanded configuration faces the proximal side. |
