초록 ▼

A dental handpiece device comprises a housing handle with a water supply line which extends through the interior of the handle or along the outside of the handle. An auxiliary chamber is formed in or is connected to the handle housing. The auxiliary chamber communicates with the water supply line an

A dental handpiece device comprises a housing handle with a water supply line which extends through the interior of the handle or along the outside of the handle. An auxiliary chamber is formed in or is connected to the handle housing. The auxiliary chamber communicates with the water supply line and may receive an additive in tablet form. The additive slowly dissolves as water passes through the auxiliary chamber. The water supply line terminates at a nozzle for spraying water near the head end of the handle housing which carries a rotating tool such as a bur or a brush. The additive is advantageously a disinfectant for disinfecting the operative area and the mist and aerosol generated by the handpiece.

대표청구항 ▼

A handpiece device for use with a water stream and an additive comprising: a handle housing having a head end; a tool receiving rotor rotatably mounted to said head end for receiving a rotary tool to be used in a procedure; water supply means operatively connected to said handle housing for defining

A handpiece device for use with a water stream and an additive comprising: a handle housing having a head end; a tool receiving rotor rotatably mounted to said head end for receiving a rotary tool to be used in a procedure; water supply means operatively connected to said handle housing for defining a water stream terminating at a water nozzle adjacent said head end; auxiliary chamber means connected to said handle housing and defining an auxiliary chamber communicating with said water stream, said auxiliary chamber including an opening for receiving an additive for introduction of the additive into the water stream; and closure means connected to said auxiliary chamber means for opening said auxiliary chamber opening to receive the additive and for closing the auxiliary chamber opening for sealing the auxiliary chamber against loss of water from said water stream; said handle housing including a supply end opposite from said head end, said water supply means including a first water coupling connected to said supply end and a water supply hose having a second water supply coupling, said auxiliary chamber means comprising an auxiliary chamber member containing said auxiliary chamber therein, detechably connected to said handle housing, said auxiliary chamber member having a third water supply coupling for coupling to said first water supply coupling and a fourth water supply coupling for coupling to said second water supply coupling, for passing the water stream through said auxiliary chamber from said water supply hose to said first water supply coupling.