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    • 1. 发明申请
    • MEDICAL HAND-PIECE
    • 医疗手持件
    • WO2010128131A2
    • 2010-11-11
    • PCT/EP2010056236
    • 2010-05-07
    • W & H DENTALWERK BUERMOOS GMBHWAGNER HANNESTEUFELBERGER GUNTHERSPITZAUER JOSEF
    • WAGNER HANNESTEUFELBERGER GUNTHERSPITZAUER JOSEF
    • A61C1/12A61C1/14A61C3/02
    • A61C1/142A61B17/162B23B31/028B23B31/1071
    • The invention relates to a medical, especially dental, hand-piece (1, 1'), comprising: an instrument retaining/release device (2) comprising a hollow shaft (3), which can be set in a drive motion for receiving a treatment instrument (4), wherein the hollow shaft (3) extends along a center axis (5) and has an instrument receiving orifice (6); a first retaining unit (7) and a second retaining unit (8), which is separate from the first retaining unit (7) and in relation to the center axis (5) is axially spaced from the first retaining unit (7), wherein both retaining units (7, 8) are designed to axially secure a treatment instrument (4) received in the hollow shaft (3) and to transmit a torque to the treatment instrument (4), and wherein both retaining units (7, 8) each have at least one shaped element (9, 10) and a borehole (12, 13) which penetrates the outside wall (11) of the hollow shaft (3) and in which the at least one shaped element (9, 10) can be received such that it protrudes through the borehole (12, 13) into the inside of the hollow shaft (3); a locking sleeve (14) which interacts with the shaped elements (9, 10), can be moved relative to the hollow shaft (3) and surrounds the hollow shaft (3), and an actuating element (15) interacting with the locking sleeve (14) for moving or displacing the locking sleeve (14).
    • 一种医疗或牙科手持件(1,1“),包括:工具保持/释放装置(2)配有一个可移位到中空轴(3)的驱动移动,用于接收处理器具(4),其中,所述中空轴(3)沿中心轴线延伸 (5)和一个工具接收开口(6); 第一保持单元(7)和一个所述第一保持单元(7)分开并且相对于(5)从第一保持部轴向延伸的中心轴(7)间隔开的第二保持单元(8),其中两个保持单元(7,8)适于 是,一个在中空轴(3)容纳治疗工具(4)以轴向地将其固定,并且扭矩到处理器具(4)来传送,并且其中,两个保持单元(7,8)分别具有至少一个形式中元件(9,10)和所述 中空轴(3)的外壁(11)穿过孔(12,13),其中,在至少一种形式元件(9,10)被设置成容纳,它(通过在空心轴3的内部的孔(12,13) )突出; 一个与所述模具元件(9,10)配合,相对于中空轴(3)可动,和所述中空轴(3)围绕所述锁定套筒(14)和与所述锁定套筒(14)配合致动元件(15),用于移动或移位锁定套筒(14 )。