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1. 发明公开

EP1171256A4 PROCESS AND APPARATUS FOR MANUFACTURING ENDODONTIC INSTRUMENTS 审中-公开
标题翻译：方法和设备齿根管器械生产
公开(公告)号：EP1171256A4
公开(公告)日：2007-01-10
申请号：EP00908368
申请日：2000-01-25
申请人： MILTEX DENTAL INC
发明人： SHEARER JACK L , SCHEARER DANE L , MUNCHEL SCOTT A , GRAYBILL LONNIE M
IPC分类号： B23B51/00 , B24B53/00 , A61C3/02 , A61C5/02 , B21C47/18 , B21K5/02 , B23B31/00 , B23B51/02 , B23G1/36 , B23P15/32 , B24B5/00 , B24B19/02 , B24B19/04 , B24B53/075
CPC分类号： B21C47/18 , A61C5/42 , B21F45/008 , B21K5/02 , B23B31/005 , B23B51/02 , B23B2231/0268 , B23B2251/241 , B23P15/32 , B24B19/04 , B24B53/075
摘要： An improved process for producing an endodontic instrument (38) with a predetermined taper (80) having a plurality of flutes (94, 95, 96), each with a predetermined number of spirals over a predetermined length of the instrument are provided. The process basically comprises providing a grinding wheel (20) rotated about a first axis having a plurality of flute grinding ribs (40, 42, 44) and a rolled deformed metal grinding rib (46) extending from a periphery thereof. A rotating wire stock (12) is fed past the plurality of grinding ribs (40, 42, 44) and the rolled deformed metal grinding rib (46) at a controlled rate along a second axis so that a separate flute (94, 95, 96) is ground on the wire stock (12) by each of the flute grinding ribs (40, 42, 44) and rolled deformed metal is removed from the ground wire stock (12) by the rolled deformed metal grinding rib (46). Simultaneously with feeding the rotating wire stock (12), the grinding wheel (20) or the wire stock (12) is translated such that a distance between the first andsecond axes increases as the bar stock is fed whereby the wire stock is tapered (80) as the flutes are ground thereon.

2. 发明公开

EP1613235A4 ENDODONTIC INSTRUMENT 审中-公开
标题翻译：根管器械
公开(公告)号：EP1613235A4
公开(公告)日：2007-10-03
申请号：EP04759023
申请日：2004-03-29
申请人： MILTEX DENTAL INC
发明人： SHEARER DANE L , SHEARER JACK L , GRAYBILL LONNIE M
IPC分类号： A61C5/02
CPC分类号： A61C5/42 , Y10T29/49568
摘要： An endodontic instrument for use in performing root canal therapy on a tooth having at least one straight flute which prevents self-threading or screwing of the instrument into a root canal during use. The instrument includes a shaft having a longitudinal central axis, a shank portion and an elongated working portion extending from the shank portion along the central axis, the elongated working portion having a proximal end, a distal end, and at least one peripheral surface and at least one straight flute formed on at least a portion of the peripheral surface of the working portion, the straight flute forming at least one cutting edge on the peripheral surface. The straight flute may be formed of a plurality of flute sections disposed on the peripheral surface of the instrument, the plurality of flute sections angularly displaced about the central axis with respect to one another. A method of manufacturing an endodontic instrument is also disclosed.

3. 发明公开

EP1613235A2 ENDODONTIC INSTRUMENT 审中-公开
标题翻译： ENDODONTISCHES仪器
公开(公告)号：EP1613235A2
公开(公告)日：2006-01-11
申请号：EP04759023.7
申请日：2004-03-29
申请人： Miltex Dental, Inc.
发明人： SHEARER, Dane, L. , SHEARER, Jack, L. , GRAYBILL, Lonnie, M.
IPC分类号： A61C5/02
CPC分类号： A61C5/42 , Y10T29/49568
摘要： An endodontic instrument for use in performing root canal therapy on a tooth having at least one straight flute which prevents self-threading or screwing of the instrument into a root canal during use. The instrument includes a shaft having a longitudinal central axis, a shank portion and an elongated working portion extending from the shank portion along the central axis, the elongated working portion having a proximal end, a distal end, and at least one peripheral surface and at least one straight flute formed on at least a portion of the peripheral surface of the working portion, the straight flute forming at least one cutting edge on the peripheral surface. The straight flute may be formed of a plurality of flute sections disposed on the peripheral surface of the instrument, the plurality of flute sections angularly displaced about the central axis with respect to one another. A method of manufacturing an endodontic instrument is also disclosed.
摘要翻译：用于在具有至少一个直槽的牙齿上进行根管治疗的根管器械，其在使用期间防止自动穿线或将器械旋入根管中。仪器包括具有纵向中心轴线的轴，柄部分和从柄部分沿着中心轴线延伸的细长工作部分，细长工作部分具有近端，远端和至少一个外周表面至少一个直槽形成在工作部分的外周表面的至少一部分上，直槽形成在周面上的至少一个切削刃。直槽可以由设置在器械的周边表面上的多个凹槽部分形成，多个凹槽部分围绕中心轴线相对于彼此角位移。还公开了一种制造牙根管器械的方法。

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