Title:
ANGLE POSITIONING DEVICE FOR DENTAL PERIAPICAL FILM PROJECTION, AND USAGE METHOD
Document Type and Number:
WIPO Patent Application WO/2022/241668
Kind Code:
A1
Abstract:
An angle positioning device for periapical film projection, comprising a main body (1), an angle measurement portion (5), an imaging positioning portion and a projection indication portion (3), wherein the main body (1) is cylindrical; the angle measurement portion (5) is arranged on a top face or a bottom face of the main body (1); the imaging positioning portion is detachably connected to the main body (1); and the projection indication portion (3) is rotatably connected to the main body (1). The working principle of the device is a protractor-based projection technique, which can avoid the exhaustive measurement of an angle bisector projection technique and the difficult operability of a paralleling projection technique, can reduce repeated photography, is easier to understand and easy to implement, and facilitates teaching development and specialized education.
Inventors:
HAN FANGKAI (CN)
LI JUE (CN)
YU ZEKUAN (CN)
LI JUE (CN)
YU ZEKUAN (CN)
Application Number:
PCT/CN2021/094535
Publication Date:
November 24, 2022
Filing Date:
May 19, 2021
Export Citation:
Assignee:
HAN FANGKAI (CN)
International Classes:
A61B6/14; A61B6/08
Foreign References:
| CN111803119A | 2020-10-23 | |||
| CN102325500A | 2012-01-18 | |||
| CN112155588A | 2021-01-01 | |||
| CN208808510U | 2019-05-03 | |||
| JPH11197148A | 1999-07-27 | |||
| JP2017123896A | 2017-07-20 |
Attorney, Agent or Firm:
SUNRAY INTELLECTUAL PROPERTY ATTORNEYS (CN)
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