DENTAL AIR TURBINE DRILL Russian patent published in 2014 - IPC A61C1/05 

FIELD: medicine.

SUBSTANCE: invention refers to dentistry. A dental air turbine drill comprises a handle and a head. The head is connected to the handle and consists of the head body and an inner portion integrated into the head body cavity. The head body consists of a wall and a lid. The inner portion consists of a turbine on a connective shaft, a top bearing and a bottom bearing. The top bearing and the bottom bearing are mounted on the upper portion and a lower portion of the turbine shaft on the connective shaft and placed respectively in the head body. The turbine cavity is arranged between the top bearing and the bottom bearing and provided with an air supply duct and an air vent duct. The top air outlet passes above the top bearing. The bottom air outlet passes below the bottom bearing. A neck of the handle is provided within a junction of the handle and the head body. The head body and the handle are plastic. Removable light-emitting diode lamps are provided outside the wall of the head body and surround a pusher. The removable light-emitting diode lamps are connected to a power supply and to a pneumatic switch in the form of a thin film at the bottom air outlet. The thickness of the removable light-emitting diode lamps is small.

EFFECT: switch and lamps are provided on the head, however the head dimensions are increased insignificantly.

29 cl, 25 dwg