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DISPOSITIF DE TRAITEMENT DE CANAL RADICULAIRE
专利权人:
J. Morita MFG. Corp.
发明人:
申请号:
EP18768498.0
公开号:
EP3597139A1
申请日:
2018.03.08
申请国别(地区):
EP
年份:
2020
代理人:
摘要:
The present invention provides a root canal treatment apparatus in which biting of a blade of a cutting tool into a root canal wall can be released and push-back of shavings into a root canal can be suppressed, when a position of a tip end of the cutting tool reaches a predetermined set position and rotation of the cutting tool is stopped. The root canal treatment apparatus according to the present invention includes: a handpiece configured to hold a cutting tool in a head in a drivable manner; a motor driver and a micromotor configured to drive the cutting tool; a root canal length measurement circuit; and a control portion. The root canal length measurement circuit is configured to electrically detect a position of a tip end of the cutting tool in a root canal, using the cutting tool as a measuring electrode. The control portion is configured to perform drive for reversely rotating the cutting tool by a predetermined set angle (180 degrees) when the position of the tip end of the cutting tool detected by the root canal length measurement circuit reaches a predetermined set position, and then, stopping rotation.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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