Patent ID: 9682198
Date: 2017-06-20
CPC Classifications: A61M

Claim:
1. An intradermal injection device comprising: a unitary body, wherein said unitary body is formed wholly from glass, said unitary body having an open distal end and a proximal end having a skin engaging surface defined thereon and a protrusion extending therefrom, wherein at least a portion of the cross-section of the protrusion is arcuate, a reservoir defined between said distal and proximal ends for accommodating a drug substance, and a channel defined at said proximal end of said unitary body and extending through, and distally from, said skin engaging surface to said reservoir; and a needle cannula having a sharpened proximal end and a distal end, said needle cannula being secured in said channel with said distal end being in communication with said reservoir and said proximal end of said needle cannula extending from said protrusion a distance in the range of about 0.5 mm to 3.0 mm, wherein said protrusion continuously circumscribes said needle cannula and bounds said channel such that said skin engaging surface and said protrusion limits penetration of said proximal end of said needle cannula to the dermis layer of the skin of a patient.