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Design and Fabrication of a High Power Piezoelectric Ultrasonic Surgery Unit for Dental Implantation

치과 임플란트 수술용 고출력 초음파 수술기 설계 및 제작

  • 김나리 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 전대우 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 김진호 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 김선욱 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 황종희 (한국세라믹기술원 광.디스플레이소재센터) ;
  • 이정배 (주식회사 디메텍) ;
  • 최성재 (주식회사 디메텍) ;
  • 임대진 (주식회사 디메텍) ;
  • 이영진 (한국세라믹기술원 광.디스플레이소재센터)
  • Received : 2017.08.30
  • Accepted : 2017.09.11
  • Published : 2017.10.01

Abstract

This paper presents the design and fabrication of a high power piezoelectric ultrasonic surgery unit for multi-purpose dental implantation. A conventional piezoelectric ultrasonic surgery units consists of a transducer and a tip. However, the drawback of this simple structure is that the output performance of the transducer considerably changes with the change of the tips. An ultrasonic surgery unit that has an additional booster between the transducer and the tip can solve this problem to some extent; for this, an optimal structural design for the transducer is required. We used the Bolted Langevin Transducer (BLT) as the basic transducer; it consists of piezoelectric ceramics and a metal body. It's structure was optimized using mathematical methods to determine the length and radius of the tail and head masses. Additionally, the booster was also subjected to the same methods. Using these mathematical methods, optimal results in terms of the resonance frequency (24.96 kHz), displacement ($14.27{\mu}m$), and pressure (2.8 MPa), could be obtained. The validity of this proposed surgery unit was confirmed experimentally, exhibiting a cutting force of around 7% higher than that of a conventional surgery unit.

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