ONE TOUCH TYPE PEN NEEDLE

摘要

The present invention relates to a pen needle used by being combined to a pen-type syringe. More specifically, disclosed is a one touch type pen needle which maintains airtightness before use and combined to a pen type syringe with one touch. The pen needle combined to the pen type syringe comprises: a hub covering a screw unit of the pen type syringe and including a syringe needle; a protection cab formed by covering the hub and having an opened flange; and a sealing material sealing the flange, wherein the hub has a plurality of incision holes formed in an injection direction and a fragment of a screw thread on the inner side, and the sealing material is formed to be dissected by virtual pressure when the hub is inserted into the pen needle.