Title:
MICRO-SCREW, ATTACHMENT, ORTHODONTIC ANCHORAGE, AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/088429
Kind Code:
A1
Abstract:
A micro-screw, an attachment, an orthodontic anchorage, and a method. The micro-screw comprises, sequentially connected, a head part (1), a neck part (2), and a screw thread part (3), the screw thread part (3) being used to cut bone tissue through alveolar bone, and a fixing groove (1.1) being provided on an end surface of the head part (1). The attachment comprises a fixing block (4) used for insertion into the fixing groove (1.1), and a connection structure (5) used for connection with a traction assembly. The orthodontic anchorage comprises the micro-screw and the attachment. By means of switching the attachment, the range of manners and directions of force application of the micro-screw of the orthodontic anchorage can be expanded.
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Inventors:
WEI YAN (CN)
DENG XULIANG (CN)
HAN BING (CN)
CHEN GUI (CN)
LYU WENXUAN (CN)
YU TINGTING (CN)
ZHANG YUNFAN (CN)
DENG XULIANG (CN)
HAN BING (CN)
CHEN GUI (CN)
LYU WENXUAN (CN)
YU TINGTING (CN)
ZHANG YUNFAN (CN)
Application Number:
PCT/CN2020/104917
Publication Date:
May 14, 2021
Filing Date:
July 27, 2020
Export Citation:
Assignee:
PEKING UNIV HOSPITAL OF STOMATOLOGY (CN)
International Classes:
A61C7/00
Foreign References:
| CN111166511A | 2020-05-19 | |||
| CN206809351U | 2017-12-29 | |||
| US20120189972A1 | 2012-07-26 | |||
| US20120189972A1 | 2012-07-26 | |||
| CN204181723U | 2015-03-04 | |||
| CN106901848A | 2017-06-30 | |||
| DE102005057650B4 | 2010-08-19 | |||
| KR101329597B1 | 2013-11-15 |
Attorney, Agent or Firm:
BEIJING SICHUANG DACHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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