Transfert needle assembly

Details Transfert needle assembly Transfert needle assembly

A - Human Necessities

61

J

A61J 1/20 (2006.01) A61J 1/00 (2006.01) A61M 5/32 (2006.01)

Patent

CA 2438760

A transfer needle assembly includes a tubular guide member 1 haying 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 thp 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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