ENDOFILE Russian patent published in 2017 - IPC A61C5/02 

FIELD: medicine.

SUBSTANCE: group of inventions refers to medicine, namely to dentistry and is intended for use in treating tooth root canals. For preparation of root canal endofile is proposed for motorized rotating drilling machine tip. Wherein endofile comprises: connector for connection with drill machine tip, central longitudinal flexible core with central flexible cable, supported at drilling machine tip end by said connector, and helically wound wire, at least, partially enclosing the core, and extending to the tip of the core opposite to end facing the handle; wherein core tip is skewed and is not connected and protrudes beyond the helically wound wire on the tip. Wherein core includes a plurality of external conductors wound around the central flexible cable in direction of winding so, that during use, during rotation of file in direction opposite to specified direction of winding, and simultaneous extraction of file from the root canal external conductors unwind and open to form a brush.

EFFECT: inventions allow simplifying preparation of the root canal, excluding breakage of endofiles, reducing processing time.

28 cl, 10 dwg