Patent ID: 8608710

Claim:
A pen needle assembly comprising: a hub having a body with a transverse wall; means, disposed on said hub proximally of said transverse wall, for mounting said hub onto an injector; a first needle cannula extending distally from said transverse wall, said first needle cannula terminating at a distal end, formed for insertion into a patient, with a first lumen extending proximally from said distal end, said first needle cannula includes a proximal end, said first needle cannula being of a first gauge; and, a second needle cannula, separate from said first needle cannula, extending proximally from said transverse wall, said second needle cannula terminating at a proximal end with a second lumen extending distally from said proximal end, said second needle cannula includes a distal end, wherein, said proximal end of said first needle cannula being generally coplanar with said distal end of said second needle cannula within a plane, said first and second lumens extending away from said plane with said first and second lumens being in communication, wherein, a portion of said transverse wall is in overlapping interengagement with said distal end of said second needle cannula so as to limit distal movement of said second needle cannula relative to said hub, and, wherein, said second needle cannula being of a second gauge, said second gauge defining a larger external cross-section than said first gauge.