The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2022
Filed:
Dec. 08, 2017
Kyungpook National University Industry-academic Cooperation Foundation, Daegu, KR;
Daegu Gyeongbuk Institute of Science and Technology, Daegu, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Shin Yoon Kim, Daegu, KR;
Jun Young Kim, Daegu, KR;
Anna Seo, Daegu, KR;
Hee Sung Lee, Daegu, KR;
Jae Youn Hwang, Daegu, KR;
Sangyeon Youn, Seoul, KR;
Jae Suk Choi, Gyeonggi-do, KR;
Min Kyu Je, Daegu, KR;
Abstract
A smart screw according to an embodiment may comprise: a screw main body which penetrates an artificial joint including a shell disposed on a hip joint of an object and a liner disposed on the inner surface of the shell and is then inserted into the hip joint; a transducer including a coupling layer that senses a sound wave signal reflected from the liner, a piezo-electric layer formed to determine a frequency of the sound wave signal, and a sound absorbing layer for absorbing the sound wave signal; and a processing module for generating a sound wave signal toward the liner and receiving the sound wave signal sensed by the coupling layer, measuring the thickness of the liner on the basis of the received sound wave signal, and transferring data about the measured thickness of the liner to the outside.