Patent ID: 8403664
Filing Date: 2013-03-26
Classification: A61C

Abstract:
1. A dental obturation system, comprising: a main body including a grip housing receiving a battery therein and an upper housing mounted to an upper end of the grip housing; a needle member mounted to a front end of the upper housing and configured to fill a place requiring a dental treatment with a heated filling material; a heating unit connected to the needle member and configured to heat the filling material to be fed to the needle member; a rotary unit installed in the upper housing wherein the rotary unit is combined with the heating unit and rotates along with the heating unit; a cartridge unit configured to receive therein the filling material supplied from outside, the cartridge unit being installed in the upper housing so that the cartridge unit faces the rotary unit; a piston unit movably installed in the upper housing and configured to feed the filling material from the cartridge unit under pressure in a direction toward both the heating unit and the needle member; a trigger rotatably mounted to the main body and configured to actuate the piston unit, thus feeding the filling material; and a power terminal unit installed both in the rotary unit and in the cartridge unit and configured to maintain an electric connection between the rotary unit and the cartridge unit so that the power terminal unit can apply electricity of from the battery to the heating unit even when the rotary unit is rotating, wherein the cartridge unit is installed in the upper housing so that the cartridge unit faces the rotary unit, and the cartridge unit includes a bore configured to allow the piston unit to move therethrough, an inlet opening formed in an outer circumferential wall of the cartridge unit to allow the filling material to be fed into the bore of the cartridge unit, and a pair of terminal support holes configured to support the power terminal unit.