DENTAL AMPULE INJECTOR Russian patent published in 2005 - IPC

FIELD: medicine, in particular, stomatology, applicable for local injection dental anesthesia.

SUBSTANCE: the dental ampule injector has a cylindrical casing with an anesthetic solution, with a needle sealed in its front end face. From behind the casing is closed with an elastic piston cup with a cylindrical duct in the centre terminating in a cavity having the shape of a truncated cone. The piston cup is hinge-joined to a replaceable handle beginning with a pusher in the form of a cylinder with a spherically thickened tip. The length and the diameter of the cylindrical section of the replaceable handle corresponds to the length and the diameter of the duct with a truncated cone-shaped cavity of the piston cup. The replaceable handle terminates in a stop for the fingers, it has 4 guide blades forming a flat stage resting upon the piston cup. For infiltration injections the capacity of the ampule injector makes up 1.2 ml, the needle caliber is 0.3 mm, its length is 21 mm, and for conductive injections the capacity make up 2.5 ml, needle caliber is 0.4 mm, its length is 32 mm.

EFFECT: produced compact, simple in assembly and safe in terms of infection injector.

1 dwg