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1.发明申请Method for removing a tool fragment from a tooth root canal and an extractor for carrying out said method 有权一种用于从牙根管去除刀具碎片的方法和用于执行所述方法的提取器公开(公告)号：US20060286511A1
公开(公告)日：2006-12-21
申请号：US11464350
申请日：2006-08-14
IPC分类号： A61C5/00
摘要： The method and extractor relate to dentistry and are intended for extraction of metal instruments fragments from a root canal of the tooth, as these instruments may be broken and may get stuck here, for example, during endodontic treatment. According to the invention, two insulated metal electrodes assembled as a cylinder are inserted into the root canal until electric contact with the fragment to be extracted. Then electric current impulse is ran through the circuit formed by the first electrode, metal fragment and second electrode; the intensity and duration of the electric impulse shall be sufficient for welding of the fragment to the electrodes by means of heating at the contact points; this time a heating of the surrounding tissues remains at the physiologically acceptable level; afterwards the electrodes are extracted from the root canal together with the fragment. Depending on a clinical situation, electrodes of various size and configuration are used. Electric impulse is generated by the unit comprising a capacitor chargeable by a battery and dischargeable in pulsed mode via controlled electronic switch. The unit also has an indicator of contact resistance between the fragment and the electrodes for a better alignment of their relative positions.
摘要翻译： 该方法和提取器涉及牙科，并且用于从牙根的根管中提取金属器械碎片，因为这些器具可能被破坏并可能被粘在这里，例如在牙根治疗期间。 根据本发明，将作为圆筒组装的两个绝缘金属电极插入根管中，直到与待提取的片段电接触。 然后电流脉冲通过由第一电极，金属片和第二电极形成的电路; 电脉冲的强度和持续时间应足以通过在接触点的加热将片段焊接到电极上; 这一次周围组织的加热保持在生理上可接受的水平; 之后，电极与片段一起从根管中提取出来。 根据临床情况，使用各种尺寸和结构的电极。 电脉冲由包括可由电池充电并可通过受控电子开关以脉冲模式放电的电容器的单元产生。 该单元还具有片段和电极之间的接触电阻的指示器，以使它们的相对位置更好地对准。
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2.发明授权公开(公告)号：US07677892B2
公开(公告)日：2010-03-16
申请号：US11464350
申请日：2006-08-14
摘要： The method and extractor relate to dentistry and are intended for extraction of metal instruments fragments from a root canal of the tooth, as these instruments may be broken and may get stuck here, for example, during endodontic treatment. According to the invention, two insulated metal electrodes assembled as a cylinder are inserted into the root canal until electric contact with the fragment to be extracted. Then electric current impulse is ran through the circuit formed by the first electrode, metal fragment and second electrode; the intensity and duration of the electric impulse shall be sufficient for welding of the fragment to the electrodes by means of heating at the contact points; this time a heating of the surrounding tissues remains at the physiologically acceptable level; afterwards the electrodes are extracted from the root canal together with the fragment. Depending on a clinical situation, electrodes of various size and configuration are used. Electric impulse is generated by the unit comprising a capacitor chargeable by a battery and dischargeable in pulsed mode via controlled electronic switch. The unit also has an indicator of contact resistance between the fragment and the electrodes for a better alignment of their relative positions.
摘要翻译： 该方法和提取器涉及牙科，并且用于从牙根的根管中提取金属器械碎片，因为这些器具可能被破坏并可能被粘在这里，例如在牙根治疗期间。 根据本发明，将作为圆筒组装的两个绝缘金属电极插入根管中，直到与待提取的片段电接触。 然后电流脉冲通过由第一电极，金属片和第二电极形成的电路; 电脉冲的强度和持续时间应足以通过在接触点的加热将片段焊接到电极上; 这一次周围组织的加热保持在生理上可接受的水平; 之后，电极与片段一起从根管中提取出来。 根据临床情况，使用各种尺寸和结构的电极。 电脉冲由包括可由电池充电并可通过受控电子开关以脉冲模式放电的电容器的单元产生。 该单元还具有片段和电极之间的接触电阻的指示器，以使它们的相对位置更好地对准。
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公开(公告)号：US6019602A
公开(公告)日：2000-02-01
申请号：US167096
申请日：1998-10-05
申请人： Tarrie Fletcher , Jeffery D. Orr
发明人： Tarrie Fletcher , Jeffery D. Orr
摘要： An extraction device for extracting some or all of a tooth from a patient, such as the root of the tooth. One embodiment of the device includes an extraction bit having helical windings without a linear core portion separate from the windings, and in that manner is distinguishable from a common screw. The extraction bit may include a partial-spiral flute or groove formed in a tip thereof. A lockable and releaseable hand piece for attaching to the extraction bit provides leverage to the user for dislodging the tooth root, and is reversible in its attachment position to the extraction bit.
摘要翻译： 一种用于从患者（例如牙根）中提取牙齿的一些或全部的提取装置。 该装置的一个实施例包括具有螺旋绕组的提取钻头，而不具有与绕组分离的线性芯部分，并且以这种方式可以与普通螺杆区分开。 提取钻头可以包括形成在其尖端中的部分螺旋槽或凹槽。 用于附接到提取钻头的可锁定和可释放的手部件为使用者提供了用于移除牙根的杠杆，并且在其与提取钻头的附接位置中是可逆的。
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公开(公告)号：US09333050B2
公开(公告)日：2016-05-10
申请号：US13203817
申请日：2010-02-25
申请人： Yukihisa Iwamoto , Norio Kaneko
发明人： Yukihisa Iwamoto , Norio Kaneko
IPC分类号： A61C5/02
摘要： A gutta-percha remover suitable for removing a gutta-percha and having flexibility with good compliancy to curvature of a root canal and a superior removing capability for forming a sufficient gap bet the gutta-percha and the root canal wall is provided. The gutta-percha remover includes a shaft, a tapered working portion connected to the shaft, and one, two, or more screw-shaped grooves formed in the working portion. The cross-sections of a base end and a tip of the working portion are such that the tip of the working portion is greater in rate of the area of each cross-section to a corresponding circle circumscribing the cross-section.
摘要翻译： 提供了一种适用于去除牙釉质并且具有良好符合根管曲率的柔韧性的去角质去除剂，以及用于在牙龈穿刺和根管壁上形成足够的间隙的优异的去除能力。 牙齿去除器包括轴，连接到轴的锥形工作部分和形成在工作部分中的一个，两个或更多个螺旋形槽。 工作部分的基端和工作部分的横截面使得工作部分的尖端在每个横截面的面积与限定横截面的相应圆的比率上较大。
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公开(公告)号：US20120021376A1
公开(公告)日：2012-01-26
申请号：US13203817
申请日：2010-02-25
申请人： Yukihisa Iwamoto , Norio Kaneko
发明人： Yukihisa Iwamoto , Norio Kaneko
IPC分类号： A61C5/02
摘要： A gutta-percha remover suitable for removing gutta-percha and having flexibility with good compliancy to curvature of a root canal and superior removing capability for forming a sufficient gap between the gutta-percha and the root canal wall is provided.A gutta-percha remover (10) includes a shaft (12), a tapered working portion (13) connected to the shaft (12), and one, two, or more screw-shaped grooves (14) formed in the working portion, wherein as to cross sections (13a, 13b) of a base end and a tip of the working portion, the tip of the working portion (13) is greater in rate of the area of each cross-section to corresponding circle (13a3, 13b3) circumscribing said each cross section.
摘要翻译： 提供了一种适用于去除牙釉质并且具有良好符合根管曲率的柔韧性的去角质去除剂，并且提供了在牙龈穿刺和根管壁之间形成足够间隙的优异去除能力。 牙根去除器（10）包括轴（12），连接到轴（12）的锥形工作部分（13）和形成在工作部分中的一个，两个或更多个螺旋形凹槽（14） 其特征在于，对于基端部和工作部的前端的截面（13a，13b），所述工作部（13）的前端部的每个截面的面积对相应的圆（13a3，13b3 ）围绕每个横截面。
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公开(公告)号：US4247285A
公开(公告)日：1981-01-27
申请号：US32265
申请日：1979-04-23
申请人： Jose L. Roig-Greene
发明人： Jose L. Roig-Greene
CPC分类号： A61C5/026
摘要： A method of removing an endodontic instrument fragment from a root canal, and a retrieving assembly for practicing the method. A wire is formed into a loop having two free ends opposite the loop. The free ends of the wire are passed through an elongated tube so that the loop extends from one side of the tube and the free ends extend from the opposite side of the tube. The loop is bent so that it makes a positive angle with respect to the tube, and the loop and a portion of the tube are inserted into the root canal alongside the fragment. The loop is slid passed the fragment so that the closed portion of the loop is on the opposite side of the fragment than the tube, and then the free ends of the wire are gripped with a hemostat and the hemostat is rotated about an axis perpendicular to the direction of elongation of the tube, to cause the loop and tube to tightly hold the fragment. Then the tube and loop, with tightly held fragment, are withdrawn from the root canal.
摘要翻译： 从根管中去除牙根管器械碎片的方法，以及用于实施该方法的检索组件。 线形成为具有与环相对的两个自由端的环。 线的自由端通过细长管，使得环从管的一侧延伸，自由端从管的相对侧延伸。 弯曲环，使得其相对于管形成正角度，并且环和管的一部分沿着片段插入根管中。 该环被滑过片段，使得环的封闭部分在与片断相反的一侧，然后电线的自由端用止血钳夹紧，止血器围绕垂直于 管的伸长方向，使环和管紧紧夹住碎片。 然后将带有紧紧保持的片段的管和环从根管中取出。
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公开(公告)号：US09248006B2
公开(公告)日：2016-02-02
申请号：US12563578
申请日：2009-09-21
摘要： The method and extractor relate to dentistry and are intended for extraction of metal instruments fragments from a root canal of the tooth, as these instruments may be broken and may get stuck here, for example, during endodontic treatment. According to the invention, two insulated metal electrodes assembled as a cylinder are inserted into the root canal until electric contact with the fragment to be extracted. Then electric current impulse is ran through the circuit formed by the first electrode, metal fragment and second electrode; the intensity and duration of the electric impulse shall be sufficient for welding of the fragment to the electrodes by means of heating at the contact points; this time a heating of the surrounding tissues remains at the physiologically acceptable level; afterwards the electrodes are extracted from the root canal together with the fragment. Depending on a clinical situation, electrodes of various size and configuration are used. Electric impulse is generated by the unit comprising a capacitor chargeable by a battery and dischargeable in pulsed mode via controlled electronic switch. The unit also has an indicator of contact resistance between the fragment and the electrodes for a better alignment of their relative positions.
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8.发明申请Method for removing a tool fragment from a tooth root canal and an extractor for carrying out said method 审中-公开一种用于从牙根管去除刀具碎片的方法和用于执行所述方法的提取器公开(公告)号：US20100009310A1
公开(公告)日：2010-01-14
申请号：US12563578
申请日：2009-09-21
IPC分类号： A61C3/00
摘要： The method and extractor relate to dentistry and are intended for extraction of metal instruments fragments from a root canal of the tooth, as these instruments may be broken and may get stuck here, for example, during endodontic treatment. According to the invention, two insulated metal electrodes assembled as a cylinder are inserted into the root canal until electric contact with the fragment to be extracted. Then electric current impulse is ran through the circuit formed by the first electrode, metal fragment and second electrode; the intensity and duration of the electric impulse shall be sufficient for welding of the fragment to the electrodes by means of heating at the contact points; this time a heating of the surrounding tissues remains at the physiologically acceptable level; afterwards the electrodes are extracted from the root canal together with the fragment. Depending on a clinical situation, electrodes of various size and configuration are used. Electric impulse is generated by the unit comprising a capacitor chargeable by a battery and dischargeable in pulsed mode via controlled electronic switch. The unit also has an indicator of contact resistance between the fragment and the electrodes for a better alignment of their relative positions.
摘要翻译： 该方法和提取器涉及牙科，并且用于从牙根的根管中提取金属器械碎片，因为这些器具可能被破坏并可能被粘在这里，例如在牙根治疗期间。 根据本发明，将作为圆筒组装的两个绝缘金属电极插入根管中，直到与待提取的片段电接触。 然后电流脉冲通过由第一电极，金属片和第二电极形成的电路; 电脉冲的强度和持续时间应足以通过在接触点的加热将片段焊接到电极上; 这一次周围组织的加热保持在生理上可接受的水平; 之后，电极与片段一起从根管中提取出来。 根据临床情况，使用各种尺寸和结构的电极。 电脉冲由包括可由电池充电并可通过受控电子开关以脉冲模式放电的电容器的单元产生。 该单元还具有片段和电极之间的接触电阻的指示器，以使它们的相对位置更好地对准。
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公开(公告)号：US5879160A
公开(公告)日：1999-03-09
申请号：US089768
申请日：1998-06-03
申请人： Clifford J. Ruddle
发明人： Clifford J. Ruddle
CPC分类号： A61C5/026
摘要： Briefly stated, the present invention provides a kit which facilitates the removal of obstructions, such as broken files, from the root canal of a patient during an endodontic or root canal procedure. The kit includes a trephine sized to be inserted in the root canal and adapted to widen the root canal around the obstruction to expose the obstruction and an obstruction removal tool adapted to engage and mechanically grasp the obstruction to remove the obstruction from the root canal. The obstruction removal tool includes a hollow tube and a plunger slideable within the tube. The hollow tube is sized to be inserted into the root canal a distance sufficient to receive the obstruction within its lumen. A cutout is spaced from the end of the hollow tube, and the hollow tube is slid over the obstruction a distance sufficient to generally align the top of the obstruction with the cutout. A plunger having a beveled end is slid through the hollow tube. The beveled end of the plunger engages the obstruction and urges the obstruction into the cutout so that the tool will mechanically grasp the obstruction. Once the tool has mechanically grasped the obstruction, the tool with the obstruction can be removed from the root canal.
摘要翻译： 简而言之，本发明提供了一种在牙根管或根管手术期间有助于从患者的根管中除去障碍物（例如破碎的文件）的试剂盒。 试剂盒包括大小适于插入根管中并适于扩大阻塞物周围的根管以暴露阻塞物的环钻，以及适于接合和机械地抓住阻塞以从根管中除去阻塞物的阻塞移除工具。 阻塞去除工具包括中空管和可在管内滑动的柱塞。 中空管的尺寸被设计成插入根管中足以在其管腔内接收阻塞物的距离。 切口与中空管的端部间隔开，并且中空管在障碍物上滑动一段足以将阻塞的顶部与切口对齐的距离。 具有倾斜端的柱塞滑过中空管。 柱塞的倾斜端接合障碍物并将阻塞物推入切口中，使得工具将机械地抓住障碍物。 一旦工具机械地抓住阻塞物，就可以从根管中除去具有阻塞物的工具。
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公开(公告)号：US4746292A
公开(公告)日：1988-05-24
申请号：US33251
申请日：1987-04-02
申请人： William B. Johnson
发明人： William B. Johnson
CPC分类号： A61C5/026
摘要： A tool for removing a parted endodontic file from the root canal of a tooth in which a portion of the length of the file is exposed, the tool being in the form of an elongated tubular shaft, the interior diameter of which is slightly greater than the exterior diameter of the file, the tubular shaft having an enlarged handle portion at the proximal end and a vent so that liquid adhesive may be applied to the distal end, the adhesive being drawn by capillary action into the tube adjacent the distal end. The shaft distal end may then be positioned over the exposed portion of a file and retained until the liquid adhesive solidifies. Thereafter, the shaft and parted file may be removed as a unit.
摘要翻译： 用于从牙齿的根管中去除分割的根管的文件的工具，其中文件长度的一部分被暴露，所述工具为细长管状轴的形式，其内径略大于 文件的外径，管状轴在近端具有扩大的把手部分和排气口，使得液体粘合剂可以施加到远端，粘合剂通过毛细作用被拉伸到邻近远端的管中。 然后，轴远端可以定位在文件的暴露部分上，并保持直到液体粘合剂固化。 此后，轴和分离文件可以作为一个单元被去除。
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