HYPODERMIC NEEDLE ASSEMBLY AND DRUG INJECTION DEVICE

摘要

The present invention enables a drug that has been discharged during air removal and is retained at a skin-contact section to be easily drained by a user. The present invention is provided with: a needle tube (5) having a needle tip that punctures skin; a needle hub (6); and a drain (26) that can drain the drug. The needle hub (6) has: a holding section (first member (11)) that holds the needle tube; an insertion section (31) to which the discharge section (52) of a syringe is inserted; and a flange-shaped skin-contact section (25) that is disposed in a manner so as to cover the periphery of the needle tube (5), and that contacts and/or faces the skin when puncturing a living body. Also, the drain (26) is provided to the skin-contact section (25) of the needle hub (6).