| 摘要 |
PROBLEM TO BE SOLVED: To provide a biopsy needle device which can be operated with one hand. SOLUTION: An outer needle 9 and an inner needle 7 to be slid inside the outer needle 9 are shot by shooting springs 19 and 21, and then, a part of tissue is sampled by operating the inner and outer needles together. A biopsy needle is provided with an inner needle base 11 and an outer needle base 15 which are respectively movable with the attached inner and outer needles 7 and 9 thereon, lock members 23 and 29 for locking the inner and outer needles bases 11 and 15 and a release board 35 for releasing the lock members 23 and 29. The operation parts 15a and 11a of the inner and outer bases 15 and 11 and the operation parts 35c, 35d, 39 and 45 of the release board 35 are arranged at both sides by holding the inner and outer needles 7 and 9 so that the setting of the needles and the shooting operation are performed with one hand by holding a drive device 5 in one hand. |
