| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter device capable of easily determining the direction that a filter accommodated in a catheter is expanded to a wire material in a desired position of a blood vessel.SOLUTION: A filter device 10 includes a tubular catheter 11 having an accommodation space inside, a shaft 12 extended along a longitudinal direction of the catheter 11 in the accommodation space, a first support part 13 and a second support part 14 provided to the shaft 12, a filter 15 supported by the two support parts and arranged along the shaft 12 that can change to a contracted state in which its outer shape can be accommodated in the accommodation space, and to an expanded state in which it expands further outside than the outer shape of the catheter 11 outside the accommodation space, and a marker 17 provided to the catheter 11 that can be detected by an X-ray. The marker 17 includes a first part 18 that continues along a circumferential direction, and a second part 19 that extends along a longitudinal direction from a part in a circumferential direction of the first part 18.SELECTED DRAWING: Figure 1 |
