20-06-2018 дата публикации
Номер: KR1020180066944A
Автор:
KIM, SHIN YOON,
KIM, JUN YOUNG,
SEO, AN NA,
LEE, HEE SUNG,
HWANG, JAE YOUN,
YOUN, SANG YEON,
CHOI, JAE SUK,
JE, MIN KYU
Принадлежит:
A smart screw according to an embodiment comprises: 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 inserted into the hip joint; a transducer including a coupling layer which senses a sound wave signal reflected from the liner, a piezo-electric layer formed to determine the frequency of the sound wave signal, and a sound absorbing layer absorbing the sound wave signal; and a processing module 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. An object according to an embodiment is to provide the smart screw for predicting the lifespan of a hip joint implant without affecting the activity of a human body. COPYRIGHT KIPO 2018 ...
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