公开(公告)号：EP0935445A1

公开(公告)日：1999-08-18

申请号：EP97945376.0

申请日：1997-09-22

申请人： DENTSPLY INTERNATIONAL, INC.

发明人： SCHUMAN, Robert, J. ,  GUILMETTE, V., Richard ,  SEPTIMUS, Martin, I. ,  CORBELLINI, Alfred, E.

IPC分类号： A61C17 ,  A61C1 ,  A61C3

CPC分类号： A61C1/0084 ,  A61C3/025

摘要： An ultrasonic dental tooth treatment system including an ultrasonic dental handpiece, a fluid reservoir housing and a power control housing. The reservoir housing is supported by the control housing. The reservoir housing encloses two containers which are connected to the selector valve. The selector valve is connected to a control housing conduit which is connected to the handpiece. The control housing encloses a power control circuit which is connected to the handpiece. In a preferred embodiment of the invention a fluid dispenser includes at least one readily removable reservoir container supported by a reservoir housing having a pivotable cover and a fluid control valve. The cover is pivotable between an open position and a closed position. The valve is closed by the cover when the cover is in its open position.

公开(公告)号：EP0935445B1

公开(公告)日：2003-06-11

申请号：EP97945376.8

申请日：1997-09-22

申请人： DENTSPLY INTERNATIONAL, INC.

发明人： SCHUMAN, Robert, J. ,  GUILMETTE, V., Richard ,  SEPTIMUS, Martin, I. ,  CORBELLINI, Alfred, E.

IPC分类号： A61C1/00

CPC分类号： A61C1/0084 ,  A61C3/025

摘要： An ultrasonic dental tooth treatment system including an ultrasonic dental handpiece, a fluid reservoir housing and a power control housing. The reservoir housing is supported by the control housing. The reservoir housing encloses two containers which are connected to the selector valve. The selector valve is connected to a control housing conduit which is connected to the handpiece. The control housing encloses a power control circuit which is connected to the handpiece. In a preferred embodiment of the invention a fluid dispenser includes at least one readily removable reservoir container supported by a reservoir housing having a pivotable cover and a fluid control valve. The cover is pivotable between an open position and a closed position. The valve is closed by the cover when the cover is in its open position.

公开(公告)号：EP1006921A1

公开(公告)日：2000-06-14

申请号：EP97936210.0

申请日：1997-08-06

申请人： DENTSPLY INTERNATIONAL, INC.

发明人： SLOTKE, Noel ,  PASCHKE, Richard, H. ,  HOUBE, Allen G., ,  SCHUMAN, Robert, J.

IPC分类号： A61C3/025

CPC分类号： A61C3/025

摘要： In a tooth cleaning system having a flexible protective shield, and a nozzle having an end portion extending into the shield. The shield is connected to a source of vacuum and has an inner wall having an inner wall perimeter. The nozzle is connected to a fluid source. The fluid from the fluid source travels directly from the nozzle to less than half of the area enclosed by the perimeter. The improvement includes pivotally supporting the nozzle whereby the nozzle is readily repositioned to positions angularly offset from the central axis of the shield directing fluid from the nozzle to the entire tooth surface and enclosed by the perimeter. The perimeter forms a fluid tight seal with the tooth outer surface. The invention provides a method of cleaning teeth including providing a flexible plastic shield having a nozzle channel therethrough and a rigid nozzle extending through said nozzle channel. The flexible protective shield is positioned against a tooth surface and the pressure within the chamber formed by the flexible protective shield and the tooth surface is reduced to a pressure below atmospheric pressure. Cleaning the entire tooth surface area by bending the nozzle channel and maintaining a fluid tight seal at the perimeter of the protective shield.