| 摘要 |
PROBLEM TO BE SOLVED: To provide a puncture tool causing a puncture part to reliably puncture to a desired depth of biological tissue.SOLUTION: An outer holder 30 includes an engagement release part that releases engagement between an inner holder 20 and a puncture needle by push-in of the inner holder 20 against spring force of a spring member. A puncture tool 1 is configured to protrude a puncture part 12 of the puncture needle, the engagement of which with the inner holder 20 is released by the engagement release part, from a protrusion port of the inner holder 20 by the spring force of the spring member. A contact part 22 has a storage recess part 222 having a shape formed by rearward recessing an inclined end face that is inclined in the puncture direction of the puncture part 12, and the protrusion port is formed in the storage recess part 222. |
