Pen Needle Assembly For Delivering Drug Solution

摘要

In one aspect, a pen needle assembly is provided herein which includes a hub, and a needle fixed to the hub, the needle having proximal and distal ends with a lumen extending therebetween. The needle extends distally from the hub to define an exposed length between the distal end of the needle and the hub in the range of about 5.0 to 9.0 mm. The hub defines a post formed about the needle, the post having a distally-facing first skin engaging surface. The exposed length of the needle extends distally from the first skin engaging surface. The hub also defines a distally-facing second skin engaging surface which at least partially circumscribes the first skin engaging surface. The second skin engaging surface being located proximally of the first skin engaging surface. Advantageously, a pen needle assembly is provided having two skin engaging surfaces which provide stability in achieving subcutaneous injections.

主权项

1. A combination for use with a medical pen injector which requires shaking to prepare
a medicament contained therein for administration to a patient, said combination comprising:
a pen needle assembly including:
a hub; and,a needle fixed to said hub, and,a shell configured for releasable retainment on said hub, said shell being retainable on said hub with said shell covering at least a portion of said needle, the force of said retainment being sufficiently great to maintain said shell retained on said hub with said pen needle assembly being mounted to a medical pen injector with the medical pen injector being shaken to prepare a medicament contained therein for administration to a patient.