CN107708601B - 切割器械,特别是牙科切割器械 - Google Patents

切割器械,特别是牙科切割器械 Download PDF

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CN107708601B
CN107708601B CN201680021838.6A CN201680021838A CN107708601B CN 107708601 B CN107708601 B CN 107708601B CN 201680021838 A CN201680021838 A CN 201680021838A CN 107708601 B CN107708601 B CN 107708601B
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instrument
cutting instrument
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cutting
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CN107708601A (zh
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A·德尔瓦尔
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Dunsborough Girona Ltd
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Dunsborough Girona Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00Dental tools or instruments
    • A61C3/02Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1615Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1613Component parts
    • A61B17/1622Drill handpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/10Shank-type cutters, i.e. with an integral shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2210/00Details of milling cutters
    • B23C2210/03Cutting heads comprised of different material than the shank irrespective of whether the head is detachable from the shank
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2222/00Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23C2222/28Details of hard metal, i.e. cemented carbide
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2222/00Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23C2222/64Nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2222/00Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23C2222/84Steel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2222/00Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23C2222/88Titanium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2240/00Details of connections of tools or workpieces
    • B23C2240/08Brazed connections
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2240/00Details of connections of tools or workpieces
    • B23C2240/16Welded connections

Abstract

本发明涉及一种用于手术或牙科使用的特别是钻头型的旋转切割器具,包括有效切割部分(2)和手柄(3)。所述有效部分(2)由金属碳化物制成,手柄(3)由镍钛合金制成。器械还包括由不锈钢制成的中间部分(4),所述中间部分放置在有效部分(2)和手柄(3)之间,并且以冶金方式连接到所述有效部分(2)和所述手柄(3)。

Description

切割器械,特别是牙科切割器械
技术领域
本发明涉及切割器械领域,特别是涉及用于医疗领域的器械,诸如牙科或外科器械。更具体地,本发明针对旋转切割器械,诸如钻头。
背景技术
钻头例如可以在用于骨科手术的医疗领域、或在用于植牙的牙科领域、或在用于钻孔根管、成形树脂、制备和修剪牙冠、制备空腔、从牙齿去除牙质、釉质或修复材料(诸如汞合金、复合材料、陶瓷或金属)的牙髓治疗中使用。
在牙科和骨科手术的领域中,已知使用钻头,所述钻头的至少有效切割部分由金属碳化物、特别是碳化钨制成。这种材料特别是由于其切割性能和其耐久性而被使用。事实上,与碳钢相比,碳化物不会腐蚀,并且足够硬以用于高速使用,甚至是切割骨骼。有效部分由碳化物制成的切割器械包括这样的器械,其中手柄由不锈钢制成,或这样的器械,其中由有效部分和手柄形成的整个器械由碳化物制成的单件制成。
发明内容
本发明的目标是提供一种切割器械,特别是用于牙科或外科手术使用的钻头类型的切割器械,所述切割器械的有效部分由碳化物、特别是碳化钨制成,并且所述切割器械的切割性能改进。
本发明的目的是一种特别是钻头类型的旋转切割器械,包括有效切割部分和手柄,所述有效部分由金属碳化物制成,其特征在于,手柄由镍钛合金制成;并且所述器械还包括由不锈钢制成的中间部分,所述中间部分位于有效部分和手柄之间,并且以冶金方式连接到所述有效部分和所述手柄。
附图说明
图1示出了用于牙科用途的具有钻头形式的本发明的实施方式。
具体实施方式
根据本发明的优选实施方式,切割器械是牙科器械,特别是在植牙或在用于钻孔根管、成形牙根、准备和修剪牙冠、制备空腔、从牙齿去除牙质、牙釉质或修复材料(例如汞合金、复合材料、陶瓷或金属)的牙髓治疗期间使用的钻头1。作为替代,根据本发明的切割器械也可以是旨在例如用于骨科手术的外科器械。
钻头1包括有效部分2和手柄3,手柄3旨在以手柄件或反角件被插入电动机中以使其被旋转地驱动。有效部分2的形状、其切割边缘、其长度、其几何形状等将不在本文中更详细地描述。
根据本发明,有效部分2由金属碳化物、优选由碳化钨(WC)制成,而手柄3由镍钛合金(NiTi)制成。镍钛合金经常用于医疗和牙科领域,特别是由于它们的柔性。因此,形成手柄3的合金成分在此不再赘述。
根据本发明,中间部分4插入在切割器械1的有效部分2和手柄3之间。这个中间部分4由不锈钢制成并且适当地以冶金方式连接到由镍钛制成的手柄3以及由碳化物制成的有效部分2。优选地,中间部分4钎焊到由碳化物制成的有效部分2上,同时其焊接到由镍钛制成的手柄3上。通常,中间部分4、有效部分2和手柄3通过本领域技术人员已知的任何合适的方式彼此冶金地连接。
中间部分4的目的是允许由碳化钨制成的有效部分2和由镍钛制成的手柄3之间的连接。事实上,直接在碳化钨和镍钛之间形成冶金连接是非常困难的。
优选地,由不锈钢制成的中间部分4的长度或厚度为0.05至50mm,更优选为1.5mm。本领域技术人员能够确定中间部分4的适当长度/厚度,从而允许由碳化物制成的有效部分2与由镍钛制成的手柄3之间的有效连接。
根据本发明的装置具有改进的切割性能,特别是与手柄由钢或碳化物制成的器械相比:实际上,由镍钛制成的手柄3比由钢或碳化物制成的手柄更有柔性。这种柔性允许特别地生产用于手术的切割器械,其中手柄具有足够的柔性以允许在弯曲的管道中工作。此外,手柄的柔性在器械的使用(旋转)时沿着器械产生振动,所述振动增加器械的切割性能。
因此获得特别用于牙科或外科领域的切割器械,所述切割器械执行良好并结合由碳化物制成的有效部分和由镍钛制成的手柄的优点。

Claims (6)

1.一种旋转切割器械(1),包括有效切割部分(2)和手柄(3),所述有效切割部分(2)由金属碳化物制成,其特征在于,手柄(3)由镍钛合金制成;并且所述器械还包括由不锈钢制成的中间部分(4),所述中间部分放置在有效切割部分(2)和所述手柄(3)之间,并且以冶金方式连接到所述有效切割部分(2)和所述手柄(3)。
2.根据权利要求1所述的器械,其特征在于,有效切割部分(2)由碳化钨制成。
3.根据前述权利要求中任一项所述的器械,其特征在于,中间部分(4)焊接到手柄(3)并钎焊到有效切割部分(2)。
4.根据权利要求1或2所述的器械,其特征在于,中间部分(4)具有在0.05至50mm之间的长度。
5.根据权利要求1或2所述的器械,其特征在于,中间部分(4)的长度为1.5mm。
6.根据权利要求1所述的器械,其特征在于,旋转切割器械(1)是钻头类型的旋转切割器械。
CN201680021838.6A 2015-04-16 2016-04-11 切割器械,特别是牙科切割器械 Active CN107708601B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP15163782.4 2015-04-16
EP15163782.4A EP3081186B1 (fr) 2015-04-16 2015-04-16 Instrument de coupe, notamment dentaire
PCT/IB2016/052039 WO2016166647A1 (en) 2015-04-16 2016-04-11 Cutting instrument, in particular a dental cutting instrument

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CN107708601A CN107708601A (zh) 2018-02-16
CN107708601B true CN107708601B (zh) 2020-09-08

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US (1) US9931178B2 (zh)
EP (1) EP3081186B1 (zh)
JP (1) JP6758319B2 (zh)
CN (1) CN107708601B (zh)
BR (1) BR112017020798B1 (zh)
CA (1) CA2979631C (zh)
WO (1) WO2016166647A1 (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5882198A (en) * 1997-03-28 1999-03-16 Ormco Corporation Endodontic instrument having enhanced compliance at the tip
CN1853837A (zh) * 2005-04-27 2006-11-01 周钟霖 用于铣切印刷电路板的切削刀具
CN101448469A (zh) * 2006-05-23 2009-06-03 学校法人日本大学 牙科用切削杆
CN102198533A (zh) * 2010-03-25 2011-09-28 佑能工具株式会社 开孔工具
CN102905826A (zh) * 2010-02-11 2013-01-30 西布罗加拿大有限合伙公司 钻头及其制备方法
CN103002827A (zh) * 2010-06-30 2013-03-27 马尼株式会社 医疗用切削器具
CN203401120U (zh) * 2013-07-15 2014-01-22 创国兴业有限公司 钻头结构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3594867B2 (ja) * 2000-01-21 2004-12-02 吉継 寺内 破折片除去用歯科器具
JP4186713B2 (ja) * 2003-05-29 2008-11-26 マニー株式会社 根管治療器具及び製造方法
US20080318184A1 (en) * 2007-06-13 2008-12-25 Brian Zargari Vibratory Dental Tool
SE533679C2 (sv) * 2009-04-07 2010-11-30 Sandvik Intellectual Property Solid stegborr

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5882198A (en) * 1997-03-28 1999-03-16 Ormco Corporation Endodontic instrument having enhanced compliance at the tip
CN1853837A (zh) * 2005-04-27 2006-11-01 周钟霖 用于铣切印刷电路板的切削刀具
CN101448469A (zh) * 2006-05-23 2009-06-03 学校法人日本大学 牙科用切削杆
CN102905826A (zh) * 2010-02-11 2013-01-30 西布罗加拿大有限合伙公司 钻头及其制备方法
CN102198533A (zh) * 2010-03-25 2011-09-28 佑能工具株式会社 开孔工具
CN103002827A (zh) * 2010-06-30 2013-03-27 马尼株式会社 医疗用切削器具
CN203401120U (zh) * 2013-07-15 2014-01-22 创国兴业有限公司 钻头结构

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Publication number Publication date
WO2016166647A1 (en) 2016-10-20
EP3081186B1 (fr) 2018-05-23
BR112017020798B1 (pt) 2021-02-02
US20160302882A1 (en) 2016-10-20
JP6758319B2 (ja) 2020-09-23
US9931178B2 (en) 2018-04-03
CA2979631A1 (en) 2016-10-20
BR112017020798A2 (pt) 2018-06-26
CA2979631C (en) 2023-05-23
EP3081186A1 (fr) 2016-10-19
CN107708601A (zh) 2018-02-16
JP2018514276A (ja) 2018-06-07

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