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    • 70. 发明公开
    • Abrasion hand piece for use with abrasion system
    • 磨损手柄与磨损系统配合使用
    • EP1356782A1
    • 2003-10-29
    • EP03016603.7
    • 1998-09-18
    • DENTSPLY INTERNATIONAL INC.
    • Brassil, John MichaelChang, Shu KunFraquelli, Roberto GiovanniNeilsson, Gary
    • A61C3/025
    • A61C3/025
    • An air abrasion system for delivering a mixture of pressurized gas and abrasive powder for use in dental procedures, the air abrasion system adapted to be attached to a pressurized gas source, the system comprising the combination of:

      a dispensing chamber having a reservoir for holding a supply of abrasive powder, an inlet port adapted for fluid communication with the pressurized gas source, a powder outlet port, and motor means for advancing abrasive powder through the powder outlet ports;
      a mixing block having a powder inlet port fluidly connected to the powder outlet port of the dispensing chamber, a purge port adapted for fluid connection to the pressurized gas source, and a common outlet connection; and
      an abrasion hand piece fluidly communicating with the outlet connection, the hand piece including a body member extending along an axis and having base and head ends, a central bore extending through the body member, and a tip removably attached to the head end of the body member and having a nozzle orifice for discharging the mixture of pressurized gas and abrasive powder;
         wherein pressurized gas is supplied to the purge port for continuous flow through the mixing block, hose, and hand piece.
    • 一种空气研磨系统,用于输送加压气体和研磨粉末的混合物以用于牙科过程,该空气研磨系统适于连接至加压气体源,该系统包括以下组合:具有用于保持 研磨粉的供应,适于与加压气体源流体连通的入口,粉末出口和用于推进磨料粉末通过粉末出口的马达装置; 混合块,具有与分配室的粉末出口流体连接的粉末入口,适于与加压气体源流体连接的净化口和公共出口连接件; 以及与所述出口连接件流体连通的磨损手柄,所述手柄包括沿着轴线延伸的主体构件,所述主体构件具有基部和头部端部,延伸穿过所述主体构件的中心孔以及可拆卸地附接到所述 本体构件并且具有用于排出加压气体和研磨粉末的混合物的喷嘴孔; 其中加压气体被供应到吹扫端口以连续流过混合块,软管和手持件。