Patent ID: 8556861

Claim:
An adapter ( 100 , 200 , 310 , 410 , 510 ) for use with a syringe ( 50 , 80 , 350 ) provided with a needle cannula ( 55 , 85 , 345 , 431 , 531 ) for intradermal injection of a medicament into the skin of a patient comprising: a body sized to receive in sliding engagement the needle cannula for movement of the needle cannula relative to the body between a first position and a second position; a first primary skin contacting surface ( 104 , 204 , 323 ) positioned at a distal end of the body and containing an opening sized to receive the needle cannula; a second primary skin contacting surface ( 105 , 205 , 311 ) positioned at the distal end of the body and further positioned at an angle ( 123 , 223 , 324 ) to the first skin contacting surface between approximately 120 degrees and approximately 165 degrees, the second primary skin contacting surface being fixed with respect to the first primary skin contacting surface and the second primary skin contacting surface being positioned distally with respect to the first primary skin contacting surface; and a proximal contact surface extending proximally from a proximal end of the first primary skin contacting surface, wherein: in the first position, the needle cannula is positioned relative to the body such that at least a tip of the needle cannula is retracted within the opening and a longitudinal axis of the needle cannula extends at an angle of greater than 0° and less than 180° with respect to a plane defined by the proximal contact surface; in the second position, the tip of the needle cannula extends through the opening and the tip of the needle cannula extends outside of the body and exterior to the second skin contacting surface; in the second position, the needle cannula extends axially in a direction substantially parallel to at least a portion of the second primary skin contacting surface.