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1. 发明授权

EP2226032B1 Dental handpiece of center-injection type 有权
标题翻译：中央喷射的类型的牙科手持件
公开(公告)号：EP2226032B1
公开(公告)日：2017-02-08
申请号：EP10155675.1
申请日：2010-03-05
申请人： Nakanishi Inc.
发明人： Kimura, Takao , Mizunuma, Masanori
IPC分类号： A61C1/05 , A61C1/14
CPC分类号： A61C1/055 , A61C1/145
摘要： The dental handpiece of a center-injection type has a bur sleeve (8, 9) having an axial through hole capable of receiving and detachably holding therein a cutting bur having an axial through hole, upper and lower bearings (10, 11) for rotatably supporting the bur sleeve (8, 9), and an injection nozzle (5) capable of being inserted into the axial through hole of the cutting bur from its proximal end for injecting cooling water through the other end. The dental handpiece (1) further has an upper seal means (17) arranged to seal the space between the upper region of the bur sleeve (8, 9) and the upper bearing (10), and a lower seal means (17'9 arranged to seal the space between the lower region of the bur sleeve (8, 9) and the lower bearing (11).

2. 发明公开

EP2226032A1 Dental handpiece of center-injection type 有权
标题翻译： DentalesHandstückdes Typs der zentralen Injektion
公开(公告)号：EP2226032A1
公开(公告)日：2010-09-08
申请号：EP10155675.1
申请日：2010-03-05
申请人： Nakanishi Inc.
发明人： Kimura, Takao , Mizunuma, Masanori
IPC分类号： A61C1/05 , A61C1/14
CPC分类号： A61C1/055 , A61C1/145
摘要： The dental handpiece of a center-injection type has a bur sleeve (8, 9) having an axial through hole capable of receiving and detachably holding therein a cutting bur having an axial through hole, upper and lower bearings (10, 11) for rotatably supporting the bur sleeve (8, 9), and an injection nozzle (5) capable of being inserted into the axial through hole of the cutting bur from its proximal end for injecting cooling water through the other end. The dental handpiece (1) further has an upper seal means (17) arranged to seal the space between the upper region of the bur sleeve (8, 9) and the upper bearing (10), and a lower seal means (17'9 arranged to seal the space between the lower region of the bur sleeve (8, 9) and the lower bearing (11).
摘要翻译：中心注射型牙科手机具有一个具有轴向通孔的钻头套筒（8,9），该轴套通孔能够容纳和拆卸地保持具有轴向通孔的切割钻头，上和下轴承（10,11）可旋转支撑该钻头套筒（8,9），以及能够从其近端插入到切削毛刺的轴向通孔中的喷嘴（5），用于将另一端喷射冷却水。所述牙齿手柄（1）还具有上密封装置（17），所述上密封装置（17）被布置成密封所述毛细套筒（8,9）的上部区域和所述上部轴承（10）之间的空间，以及下部密封装置被布置成密封毛坯套筒（8,9）的下部区域和下部轴承（11）之间的空间。

3. 发明授权

EP1444966B1 Dental head unit for measuring root canal length, and contact holder assembly with electrical contact therefor 有权
标题翻译：牙科头单元，用于测量根管长度和保持件具有用于电接触
公开(公告)号：EP1444966B1
公开(公告)日：2006-05-17
申请号：EP03020880.5
申请日：2003-09-15
申请人： Nakanishi Inc.
发明人： Nakanishi, Eiichi , Mizunuma, Masanori
IPC分类号： A61C19/04 , A61C5/02
CPC分类号： A61C19/041 , A61C1/14 , A61C5/44

4. 发明授权

EP2522296B1 Dental handpiece 有权
标题翻译：牙科手机
公开(公告)号：EP2522296B1
公开(公告)日：2015-07-08
申请号：EP12167667.0
申请日：2012-05-11
申请人： Nakanishi Inc.
发明人： Kimura, Takao , Mizunuma, Masanori , Yokochi, Keita
IPC分类号： A61C1/08 , A61C1/10 , A61C1/12
CPC分类号： A61C1/12 , A61C1/08 , A61C1/10

5. 发明授权

EP2526890B1 Dental handpiece with switching valve for fluid lines 有权
标题翻译：牙科手持件有用于流体管路控制阀
公开(公告)号：EP2526890B1
公开(公告)日：2014-11-05
申请号：EP12169524.1
申请日：2012-05-25
申请人： Nakanishi Inc.
发明人： Kimura, Takao , Mizunuma, Masanori , Yokochi, Keita
IPC分类号： A61C1/00
CPC分类号： A61C17/0217 , A61C1/0061 , A61C17/0202

6. 发明公开

EP2522296A1 Dental handpiece 有权
标题翻译：牙科手机
公开(公告)号：EP2522296A1
公开(公告)日：2012-11-14
申请号：EP12167667.0
申请日：2012-05-11
申请人： Nakanishi Inc.
发明人： Kimura, Takao , Mizunuma, Masanori , Yokochi, Keita
IPC分类号： A61C1/08 , A61C1/10 , A61C1/12
CPC分类号： A61C1/12 , A61C1/08 , A61C1/10
摘要： A dental handpiece (P) has a head section (1), a neck section (2) , a grip section (3) connected to the grip section (2), a drive unit (4) connected to the grip section (3), and a detent pin (61) arranged axially slidably in the grip section (3), spring means (62) for biasing the pin (61) proximally so that the distal end of the pin (61) is arranged inside the grip section (3) in a rest position, and catch means (63) formed at the proximal end of the neck section (2) for receiving the pin (61) for engagement. When the drive unit (4) is brought into connection to the grip section (2), the pin (61) is pressed distally to project out of the grip section (2) into engagement in the catch means (63), to prevent relative rotation between the neck section (2) and the grip section (3).
摘要翻译：牙科手机（P）具有头部（1），颈部（2），与握持部（2）连接的握持部（3），与握持部（3）连接的驱动单元（4），以及可轴向滑动地布置在握持部分（3）中的止动销（61），用于向近侧偏压销（61）的弹簧装置（62），以便销（61）的远端布置在握持部分 3）处于静止位置，以及在颈部（2）的近端形成的用于接收销（61）以便接合的锁定装置（63）。当驱动单元（4）与把手部分（2）连接时，销（61）被向远侧按压以从把手部分（2）突出而进入接合装置（63）中，以防止相对在颈部（2）和握持部分（3）之间旋转。

7. 发明授权

EP2008609B1 Dental handpiece 有权
标题翻译：牙科手机
公开(公告)号：EP2008609B1
公开(公告)日：2012-03-21
申请号：EP08011504.1
申请日：2008-06-25
申请人： Nakanishi Inc.
发明人： Mizunuma, Masanori , Kimura, Takao
IPC分类号： A61C1/12
CPC分类号： A61C1/12

8. 发明公开

EP2526890A3 Dental handpiece with switching valve for fluid lines 有权
标题翻译：牙科手持件有用于流体管路控制阀
公开(公告)号：EP2526890A3
公开(公告)日：2013-01-09
申请号：EP12169524.1
申请日：2012-05-25
申请人： Nakanishi Inc.
发明人： Kimura, Takao , Mizunuma, Masanori , Yokochi, Keita
IPC分类号： A61C1/00
CPC分类号： A61C17/0217 , A61C1/0061 , A61C17/0202
摘要： Disclosed is a dental handpiece (P) wherein the chip air line (202) is selectively switched to the ON-state for using both water and chip air, and to the OFF-state for using only water. The dental handpiece (P) has a switching valve (4) provided between the circumferential chip air channel (23) and the chip air line (202) in the handpiece body (2) for selectively allowing and preventing communication therebetween, wherein opening of the valve (4) switches the communication to the ON-state in which chip air is allowed to pass from the circumferential chip air channel (23) into the chip air line (202), whereas closing of the valve (4) switches the communication to an OFF-state in which chip air is prevented from passing from the circumferential chip air channel (23) into the chip air line (202).

9. 发明授权

EP2387967B1 Dental handpiece 有权转让
公开(公告)号：EP2387967B1
公开(公告)日：2012-12-26
申请号：EP11176187.0
申请日：2008-06-25
申请人： Nakanishi Inc.
发明人： Mizunuma, Masanori , Kimura, Takao
IPC分类号： A61C1/12
CPC分类号： A61C1/12

10. 发明公开

EP2526890A2 Dental handpiece with switching valve for fluid lines 有权
标题翻译： DentalesHandstückmit SchaltventilfürFlüssigkeitsleitungen
公开(公告)号：EP2526890A2
公开(公告)日：2012-11-28
申请号：EP12169524.1
申请日：2012-05-25
申请人： Nakanishi Inc.
发明人： Kimura, Takao , Mizunuma, Masanori , Yokochi, Keita
IPC分类号： A61C1/00
CPC分类号： A61C17/0217 , A61C1/0061 , A61C17/0202
摘要： Disclosed is a dental handpiece (P) wherein the chip air line (202) is selectively switched to the ON-state for using both water and chip air, and to the OFF-state for using only water. The dental handpiece (P) has a switching valve (4) provided between the circumferential chip air channel (23) and the chip air line (202) in the handpiece body (2) for selectively allowing and preventing communication therebetween, wherein opening of the valve (4) switches the communication to the ON-state in which chip air is allowed to pass from the circumferential chip air channel (23) into the chip air line (202), whereas closing of the valve (4) switches the communication to an OFF-state in which chip air is prevented from passing from the circumferential chip air channel (23) into the chip air line (202).
摘要翻译：公开了一种牙科手机（P），其中，芯片空气管线（202）选择性地切换到使用水和空气两者的空气的ON状态，并且进入仅使用水的OFF状态。牙齿手柄（P）具有切换阀（4），设置在手柄体（2）的周向芯片空气通路（23）和芯片空气管路（202）之间，用于选择性地允许和防止它们之间的连通，阀（4）将通信切换到允许芯片空气从周向芯片空气通道（23）进入芯片空气管线（202）的接通状态，而阀（4）的关闭将通信切换到断开状态，其中防止了芯片空气从周向芯片空气通道（23）进入芯片空气管线（202）。

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