| 摘要 |
A transfer needle assembly includes a tubular guide member 1 having a top surface 11, a skirt portion 13, and a puncture needle insertion portion 12; and a puncture member 2 of which tip 223 is fitted in the puncture needle insertion portion 12 such that the tip 223 can slide from a position where it is receded into the skirt portion 13 to a position where it projects from the skirt portion 13. The puncture member 2 is a tubular member having a tip fitting portion 21 at the proximal end thereof and, at the distal end thereof, a puncture needle 22 to be inserted into the puncture needle insertion portion 12. The puncture needle 22 is provided with a liquid passage 222 that communicates with the tip fitting portion 21 and a gas passage 221 that is open to the outside through an air filter 231.
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