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114 条记录 (耗时 0.014 秒)

    Dental head unit capable of measuring root canal length, and contact holder assembly therefor
    86.
    发明授权
    Dental head unit capable of measuring root canal length, and contact holder assembly therefor 有权
    能够测量根管长度的牙齿头单元及其接触支架组件

    公开(公告)号：US07070411B2

    公开(公告)日：2006-07-04

    申请号：US10659274

    申请日：2003-09-11

    申请人： Eiichi Nakanishi ,  Masanori Mizunuma

    发明人： Eiichi Nakanishi ,  Masanori Mizunuma

    IPC分类号： A61C19/04

    CPC分类号： A61C19/041 ,  A61C1/14 ,  A61C5/44

    摘要： The present invention relates to a dental head unit capable of measuring a root canal length of a patient. The head unit includes a head section having a sleeve rotatably supported therein for detachably holding a cutting tool therein, a neck section extending proximally from the head section and having a proximal end for connecting to a handpiece body, a contact capable of detachably contacting the cutting tool for providing electric connection to the cutting tool when in contact, and a contact holder fixed to a proximal end of the contact and axially slidable with respect to the neck section. The contact holder has a lead attachment to which a lead for electrically connecting the contact to a root canal length measuring device is detachably attached. The present invention also relates to a contact holder assembly including the contact and the contact holder.

    摘要翻译： 本发明涉及能够测量患者根管长度的牙科头部单元。 头单元包括头部，其具有可旋转地支撑在其中的套筒，用于将切割工具可拆卸地保持在其中，颈部部分从头部部分向近侧延伸并且具有用于连接到机头本体的近端，能够可拆卸地接触切割件的接触件 用于在接触时提供与切割工具的电连接的工具，以及固定到接触件的近端并相对于颈部可轴向滑动的接触保持器。 接触保持器具有引线附件，用于将接触件电连接到根管长度测量装置的引线可拆卸地附接到该引线附件。 本发明还涉及一种包括触点和触点支架的触点支架组件。

    Dental water heater
    87.
    发明申请
    Dental water heater 失效
    牙科热水器

    公开(公告)号：US20060056571A1

    公开(公告)日：2006-03-16

    申请号：US11224228

    申请日：2005-09-13

    申请人： Fukuhisa Mihara

    发明人： Fukuhisa Mihara

    IPC分类号： G21C15/00 ,  G21C19/28

    CPC分类号： A61C1/0069 ,  F24H1/162

    摘要： The present invention relates to a dental water heater. The water heater has a columnar body, and the body includes heating means extending in the axial direction of the body, and a plurality of layers of water channel sections arranged around the heating means. Each of the water channel sections spirally extends in the axial direction of the body. The adjacent pairs of the water channel sections are communicated either at upper or lower end portions thereof so as to together form a whole water channel. The whole water channel has an inlet and an outlet for water to be heated, so that water is supplied through the inlet, passed through the entire length of the whole water channel, and taken out as warmed water through the outlet.

    摘要翻译： 牙热水器技术领域本发明涉及一种牙科用热水器。 热水器具有圆柱体，主体包括沿主体的轴向延伸的加热装置，以及布置在加热装置周围的多个水通道部分。 每个水通道部分沿主体的轴向螺旋地延伸。 相邻的一对水通道部分在其上端或下端部连通，以一起形成整个水通道。 整个水道有一个入水口和一个待加热水的出口，使得水通过入口供水，通过整个水道的整个长度，并通过出口作为暖水取出。

    DENTAL HANDPIECE
    89.
    发明公开
    DENTAL HANDPIECE 审中-公开

    公开(公告)号：US20230190407A1

    公开(公告)日：2023-06-22

    申请号：US18081927

    申请日：2022-12-15

    申请人： NAKANISHI INC.

    发明人： Yamato Inoue ,  Yasuo Iwai ,  Hiroki Otsuka

    IPC分类号： A61C1/14

    CPC分类号： A61C1/144 ,  A61C1/141

    摘要： A dental handpiece configured to rotatably drive a dental treatment tool mounted in a chuck mechanism includes the chuck mechanism in which the dental treatment tool is mounted so as to be attachable and detachable. The chuck mechanism includes a hollow cylindrical sleeve, a cylindrical slide member, a plurality of divided movable pieces disposed in the sleeve, an elastic biasing member configured to bias the cylindrical slide member forward in an insertion direction of the dental treatment tool, and a stopper unit which restricts forward axial movement of the plurality of divided movable pieces in the insertion direction. The divided movable pieces are moved in a radial direction by relative movement between the divided movable pieces and the cylindrical slide member in the axial direction, so that fixation of the dental treatment tool and release of the fixation are performed.