Patent ID: 8267890
Filing Date: 2012-09-18
Classification: A61M

Abstract:
1. A medication delivery device comprising: a needle cannula having a sharpened distal end having a forward tip; and, a limiter disposed about said needle cannula and having a distal end defining a skin engaging surface disposed transversely to, and at least partially about, said needle cannula, said skin engaging surface being generally non-flat, a recess being defined in said skin engaging surface which defines a void into which portions of a patient's skin can be contoured into when said skin engaging surface is pressed against the patient's skin, said forward tip of said needle cannula being spaced apart from a plane a pre-selected and fixed distance ranging from about 0.5 mm to 3.0 mm such that said skin engaging surface limits penetration of said forward tip of said needle cannula to the dermis layer of the patient's skin wherein said skin engaging surface includes a continuous annular protrusion extending distally wherein said protrusion has a height ranging from 0.2 to 1.0 mm and said protrusion is bound to said recess, said protrusion terminating at a proximal free end, said proximal free end defining a width ranging from 0.2 to 0.6 mm.