US Patent 9486297 Light for oral anesthesia injection syringe

A light for use with an oral anesthesia syringe that is received into a passageway of a barrel of the light. When the syringe is received into a first opening in a proximal end of the barrel's passageway, the needle of the syringe extends through a second opening at the proximal end of the barrel. A plurality of lamps at the distal end of the barrel illuminate the needle, the interior of a patient's mouth, and an injection site of the needle. A battery is included in the light for powering the lamps. Power is selectively applied to the lamps. A circuit may disable illumination after about ten minutes of use.