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公开(公告)号：US09408674B2
公开(公告)日：2016-08-09
申请号：US14369606
申请日：2012-01-30
IPC分类号： A61C5/02
摘要： A reamer for use in root canal preparation includes a blade that is spiral-shaped with a pitch increasing towards the tip, and with a cutting or non-cutting tip. At given points along the length of the spiral of the blade, there is a plurality of gaps, the spiral starting again beyond the gaps, wherein the portion where the spiral is interrupted has either a constant or decreasing cross section linking the two diameters before and after the gap.
摘要翻译： 用于根管制备的扩孔器包括螺旋状的叶片，其具有朝向尖端的间距增加，并具有切割或非切割尖端。 在沿着叶片螺旋长度的给定点处，存在多个间隙，螺旋再次从间隙开始，其中螺旋被中断的部分具有连接两个直径之前和之后的恒定或减小的横截面 之后的差距。
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公开(公告)号：US08916009B2
公开(公告)日：2014-12-23
申请号：US13300506
申请日：2011-11-18
申请人： Dan Ammon , Vincent Shotton , Yong Gao , Randall Maxwell
发明人： Dan Ammon , Vincent Shotton , Yong Gao , Randall Maxwell
CPC分类号： A61C5/023 , A61C5/42 , A61C2201/007 , C21D6/001 , C21D6/004 , C21D6/005 , C21D6/007 , C21D6/008 , C21D9/0068 , C22C9/00 , C22C9/06 , C22C18/02 , C22C19/03 , C22C30/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/105 , C22C38/12 , C22C38/40 , C22F1/006 , C22F1/08 , C22F1/10
摘要： A method for manufacturing a nonlinear superelastic file comprising the steps of: providing a superelastic file having a shaft and a file axis; providing a fixture including a file groove being defined by one or more displacement members, the file groove configured for receiving the shaft; inserting at least a portion of the shaft into the fixture along the file groove, the portion of the shaft including a first portion of the shaft; contacting the first portion of the shaft with a first displacement member of the one or more displacement members such that the first portion of the shaft is displaced from the file axis thereby forming a first offset portion of the shaft; heating the portion of the shaft while inserted in the fixture to a temperature of at least about 300° C. for a time period of at least about 1 minute to shape-set the portion of the shaft thereby forming a shape-set nonlinear file.
摘要翻译： 一种用于制造非线性超弹性文件的方法，包括以下步骤：提供具有轴和文件轴的超弹性文件; 提供一种夹具，其包括由一个或多个位移构件限定的文件槽，所述文件槽构造成用于容纳所述轴; 所述轴的至少一部分沿着所述文件槽插入所述固定装置，所述轴的所述部分包括所述轴的第一部分; 使所述轴的第一部分与所述一个或多个位移构件的第一位移构件接触，使得所述轴的所述第一部分从所述锉轴移位，从而形成所述轴的第一偏移部分; 将轴插入固定装置中的部分加热到至少约300℃的温度至少约1分钟的时间，以形成轴的部分，从而形成一个形状非线性文件。
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公开(公告)号：US6126521A
公开(公告)日：2000-10-03
申请号：US237182
申请日：1999-01-25
IPC分类号： B24B53/00 , A61C3/02 , A61C5/02 , B21C47/18 , B21K5/02 , B23B31/00 , B23B51/02 , B23G1/36 , B23P15/32 , B24B19/02 , B24B19/04 , B24B53/075 , B24B1/00
CPC分类号： B21C47/18 , A61C5/023 , B21F45/008 , B21K5/02 , B23B31/005 , B23B51/02 , B23P15/32 , B24B19/04 , B24B53/075 , B23B2231/0268 , B23B2251/241
摘要： An improved process for producing an endodontic instrument with a predetermined taper having a plurality of flutes, each with a predetermined number of spirals over a predetermined length of the instrument are provided. The process basically comprises providing a grinding wheel rotated about a first axis having a plurality of flute grinding ribs and a rolled deformed metal grinding rib extending from a periphery thereof. A rotating wire stock is fed past the plurality of flute grinding ribs and the rolled deformed metal grinding rib at a controlled rate along a second axis so that a separate flute is ground on the wire stock by each of the flute grinding ribs and rolled deformed metal is removed from the ground wire stock by the rolled deformed metal grinding rib. Simultaneously with feeding the rotating wire stock, the grinding wheel or the wire stock is translated such that a distance between the first and second axes increases as the bar stock is fed whereby the wire stock is tapered as the flutes are ground thereon.
摘要翻译： 提供了一种用于生产具有预定锥度的牙髓根治器具的改进方法，所述锥形具有多个凹槽，每个凹槽在仪器的预定长度上具有预定数量的螺旋。 该方法基本上包括提供围绕具有多个凹槽研磨肋的第一轴线旋转的砂轮和从其周边延伸的卷绕的变形的金属研磨肋。 沿着第二轴线以可控的速度将转动的钢丝料料以多个槽纹研磨肋和轧制的变形的金属研磨肋进给，使得通过每个槽槽研磨肋和轧制的变形金属在钢丝绳上研磨单独的槽纹 通过轧制的变形的金属研磨肋从地线料中除去。 在馈送旋转线材的同时，砂轮或线材平移，使得第一和第二轴线之间的距离随着料斗的供给而增加，由此当槽纹被磨削时，线材是锥形的。
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4.发明授权
公开(公告)号：US6059572A
公开(公告)日：2000-05-09
申请号：US325035
申请日：1999-06-03
申请人： Francesco Riitano
发明人： Francesco Riitano
摘要： A root canal is sequentially cleaned in sections from the crown to the apex by dividing it into three sections including an operative coronal portion, an operative middle portion and an apical portion. An operative phase corresponds with each section and specific instrumentation is used in each phase. After an opening is formed into the tooth to provide access into the root canal, the opening is preferably rectified to remove obstructions so that the anatomical root canal can be fully accessed. The pulp material is then sequentially removed from the portion of the root canal above the apical portion of the root canal with a set of instruments and then from the apical portion with another set of instruments. An optional set of instruments can also be used to improve the access into the apical portion such that irrigants can be delivered to the apical portion. Cleaning of the pulp material from the root canal also shapes the root canal to ease filling of the root canal with a filling material. The root canal preparation and shaping are completed while maintaining the original anatomy of the root canal. Each instrument comprises a handle connected to a file. Each file has an abrading portion and terminates at a tip. The files used to clean the portion of the root canal above the apical portion have properties which enable the abrading portion of the file to conform to the configuration of the root canal while simultaneously moving the file in a cleaning motion.
摘要翻译： 将根管分为三个部分，其中包括手术冠部分，手术中部和顶端部分，依次将根管从冠部切除至顶点。 操作阶段对应于每个部分，每个阶段都使用特定的仪器。 在形成牙齿以提供进入根管的开口之后，优选地将开口整治以去除障碍物，使得解剖根管能够完全进入。 然后用一组仪器将纸浆材料从根管的顶部上方的根管部分依次取出，然后从顶端部分用另一组仪器取出。 还可以使用一套可选的器械来改善进入顶部的入口，使得冲洗液能够被输送到顶端部分。 从根管清理纸浆材料还使根管成形以便于用填充材料填充根管。 完成根管准备和成形，同时保持根管的原始解剖结构。 每个乐器包括连接到文件的手柄。 每个文件具有研磨部分并终止于尖端。 用于清洁顶部上方根管部分的文件具有使文件的研磨部分符合根管的构造的同时具有特性，同时在清洁动作中移动文件。
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公开(公告)号：US5975899A
公开(公告)日：1999-11-02
申请号：US972599
申请日：1997-11-18
IPC分类号： A61C5/02
CPC分类号： A61C5/023
摘要： The present invention relates to a dental reamer (2) which tapers right down to its tip (1), of the type including helical slits which, on their sides, have cutting lips for boring out dental canals, in which the characteristics of the cutting conditions are defined by, on the one hand, a cutting angle .alpha. determined by the tangent to the cutting edge at the cutting point and the perpendicular to the surface to be cut at this point and, on the other hand, a clearance angle .beta. determined by the plane of the cutting surface and the tangent to the inactive face of the cutting edge, characterized in that the value of the cutting angle .alpha. is greater than or equal to zero and that of the clearance angle .beta. is greater than zero.
摘要翻译： 本发明涉及一种朝向其尖端（1）向下渐缩的牙科铰刀（2），其包括螺旋狭缝，其侧面上具有用于钻出牙槽的切口，其中切割的特征 条件通过一方面由切割点处的切割刃的切线确定的切割角α和在该点处切割的表面的垂直线，另一方面，确定了间隙角β 通过切割面的平面和切割边缘的不活动面的切线，其特征在于，切割角α的值大于或等于零，间隙角β的值大于零。
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公开(公告)号：US5915964A
公开(公告)日：1999-06-29
申请号：US21336
申请日：1998-02-10
申请人： Harmeet Walia
发明人： Harmeet Walia
IPC分类号： A61C5/02
CPC分类号： A61C5/023
摘要： An endodontic file assembly includes a noncutting file guide along which a flexible file may run. The guide is first inserted into the root canal anchored at its tip and the file subsequently moved along the guide. Disproportionate forces between the file and inner and outer curvatures of the root canal caused by the natural resilience of the file are thereby reduced to provide for more uniform debridement of the inner walls of the root canal.
摘要翻译： 牙髓文件组件包括可以运行灵活文件的非切割文件指南。 引导件首先插入到其尖端处的根管中，并且该文件随后沿着引导件移动。 因此，由文件的自然弹性引起的文件与根管的内外曲率之间的不成比例的力因此减少以提供根管内壁的更均匀的清创。
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公开(公告)号：US5882198A
公开(公告)日：1999-03-16
申请号：US885390
申请日：1997-06-30
申请人： Tim L. Taylor , John T. McSpadden
发明人： Tim L. Taylor , John T. McSpadden
IPC分类号： A61C5/02
CPC分类号： A61C5/023
摘要： An endodontic instrument is provided for use in performing root canal procedures and comprises an elongate working portion and a chisel tip portion which has removing edges that improve the effectiveness of the instrument in extirpating and enlarging the root canal. The working portion has a non-uniform taper which accelerates from a proximal end of the instrument to a distal end forming a region of enhanced compliance adjacent the tip.
摘要翻译： 提供用于执行根管手术的根管器械，并且包括细长工作部分和凿尖部分，其具有提高器械拔除和扩大根管的有效性的移除边缘。 工作部分具有不均匀的锥形，其从器械的近端加速到远端，形成邻近尖端的增强的顺应性区域。
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公开(公告)号：US5876202A
公开(公告)日：1999-03-02
申请号：US79128
申请日：1998-05-14
申请人： Pierre Berlin
发明人： Pierre Berlin
CPC分类号： B23B51/02 , A61C3/02 , A61C5/023 , B23B2251/046 , B23B2251/406 , Y10T408/9097
摘要： The flutes of a drill bit (1) are constituted by helical portions (4) and rectilinear portions (5).
摘要翻译： 钻头（1）的凹槽由螺旋部分（4）和直线部分（5）构成。
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公开(公告)号：US5775903A
公开(公告)日：1998-07-07
申请号：US772628
申请日：1996-12-23
申请人： John Atkins
发明人： John Atkins
IPC分类号： A61C5/02
CPC分类号： A61C5/023
摘要： An endodontic instrument has a comfortable grip especially for use for a long time of period. A handle of the endodontic instrument includes a cylindrical stem, opposite end portions, and plural brims radially extending from the circumferential surface of the stem in a plate shape juxtaposed in the axial direction of the stem with a predetermined space. When an operator grips the handle of the endodontic instrument, the operator's fingers can readily control the handle through contacts to the brims while the brims engage the bulges of the fingers adequately. The brim preferably has recesses to provide the identification of the instrument's orientation in the finger and also can preferably be made of a resilient material to make the contacts softer to provide better blood flow in finger tips and providing less finger tip stress.
摘要翻译： 牙髓器具具有舒适的抓地力，特别适用于长时间使用。 牙髓器具的手柄包括圆柱形杆，相对的端部，以及从杆的圆周表面沿预定的空间沿阀杆的轴向并置的板形径向延伸的多个边缘。 当操作者握住牙髓器械的手柄时，操作者的手指可以容易地通过与边缘的接触来控制手柄，同时边缘适当地接合手指的凸起。 边缘优选地具有凹部以提供手指的仪器取向的识别，并且还可以优选地由弹性材料制成以使触点更柔软以在指尖提供更好的血液流动并且提供较少的指尖应力。
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公开(公告)号：US5762541A
公开(公告)日：1998-06-09
申请号：US890421
申请日：1997-07-09
申请人： Derek E. Heath , Jerry A. Mooneyhan
发明人： Derek E. Heath , Jerry A. Mooneyhan
CPC分类号： A61C5/023 , B24B19/022 , B24B19/04
摘要： A method of fabricating an endodontic instrument by a machining operation is disclosed, and wherein a wire-like rod composed of a titanium alloy is advanced past a rotating grinding wheel at a relatively slow feed rate, with a sufficient depth of cut to remove all of the material on a given surface without over grinding a previously ground surface, and with the grinding wheel rotating at a relatively slow surface speed. The disclosed method is able to efficiently produce endodontic instruments having a high degree of flexibility, high resistance to torsional breakage, and with sharp cutting edges along the working length.
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