发明公开
EP3045142A1 ENDODONTIC INSTRUMENTS AND METHODS OF MANUFACTURIN THEREOF
有权
内罗毕仪器公司在维多利亚州ZER HERSTELLUNG DAVON
- 专利标题： ENDODONTIC INSTRUMENTS AND METHODS OF MANUFACTURIN THEREOF
- 专利标题（中）： 内罗毕仪器公司在维多利亚州ZER HERSTELLUNG DAVON
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申请号： EP16156160.0申请日： 2012-11-16
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公开(公告)号： EP3045142A1公开(公告)日： 2016-07-20
- 发明人: AMMON, Dan , SHOTTON, Vincent , GAO, Yong , MAXWELL, Randall
- 申请人： Dentsply International Inc.
- 申请人地址： 570 West College Avenue York, PA 17401-3880 US
- 专利权人： Dentsply International Inc.
- 当前专利权人： Dentsply International Inc.
- 当前专利权人地址： 570 West College Avenue York, PA 17401-3880 US
- 代理机构： Hartz, Nikolai
- 优先权： US201113300506 20111118
- 主分类号： A61C5/02
- IPC分类号： A61C5/02 ; C21D6/00 ; C21D9/00
摘要：
A method for manufacturing a non-superelastic file comprising the steps of:
(i) providing a superelastic file having an austenite finish temperature; and
(ii) heating at least a portion of the superelastic file to a temperature from 300 °C to 600 °C for a period of time from 5 minu tes to 120 minutes to alter the austenite finish temperature thereby forming the non-superelastic file; wherein the altered austenite finish temperature of the non-superelastic file is from 20°C to 40°C;
further comprising the step of
(iii) cooling the portion of the non- superelastic file, and
(iv) heating at least a portion of the cooled non-superelastic file to a temperature from 350°C to 600°C for a time period from 3 minutes to 30 minutes to shape-set the portion of the shaft thereby forming a shape-set non-superelastic nonlinear file.
(i) providing a superelastic file having an austenite finish temperature; and
(ii) heating at least a portion of the superelastic file to a temperature from 300 °C to 600 °C for a period of time from 5 minu tes to 120 minutes to alter the austenite finish temperature thereby forming the non-superelastic file; wherein the altered austenite finish temperature of the non-superelastic file is from 20°C to 40°C;
further comprising the step of
(iii) cooling the portion of the non- superelastic file, and
(iv) heating at least a portion of the cooled non-superelastic file to a temperature from 350°C to 600°C for a time period from 3 minutes to 30 minutes to shape-set the portion of the shaft thereby forming a shape-set non-superelastic nonlinear file.
公开/授权文献
- EP3045142B1 ENDODONTIC INSTRUMENTS AND METHODS OF MANUFACTURING THEREOF 公开/授权日：2017-08-30
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