지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
We had presented an inductive type intraocular pressure sensor (L-sensor) in previous work. The distance between a micro coil and a ferrite on the membrane was modulated by pressure, and as a result the inductance and resonant frequency were changed. However, L-sensor has some problems to implant in eyes. First problem is low sensitivity. When L-sensor was implanted in rabbit’ eyes, resonant frequency of L-sensor was very hard to detect. Second problem is biocompatibility. Size of L-sensor is 6×7×1.2mm. When L-sensor was implanted in the eyes, it caused the inflammation. Therefore, this study suggests an inductive and capacitive type IOP sensor (LCsensor). The sensitivity of the LC-sensor 27.3 kHz/mmHg under 60mmHg. It is much larger than 14 kHz/mmHg of the L-sensor. And the size of LC-sensor is 47% smaller than L-sensor. After 2 weeks from the implantation of LC-sensor into rabbit eyes, we measured the changes of resonant frequency of LC-sensor according to increased IOP by Balanced Salt Solution (BSS) injection. As a result, the sensitivity of LC-sensor in in vivo test is 25 kHz/mmHg. That is similar to the sensitivity of in vitro test.
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참고문헌 (23)
참고문헌 신청
C. Po-Jui / 2007 / Implantable micromechanical parylenebased pressure sensors for unpowered intraocular pressure sensing / J Micromech Microeng 17 : 1931 ~
C. Po-Jui / 2008 / Implantable parylene-based wireless intraocular pressure sensor / Micro Electro Mechanical Systems, 2008. MEMS 2008. IEEE 21st International Conference on : 58
C. Po-Jui / 2010 / Wireless intraocular pressure sensing using microfabricated minimally invasive flexible-coiled LC sensor implant / J. Microelectromech. Syst 19 : 721 ~ 73
E. Schneider / 2006 / Intraocular pressure measurement-comparison of dynamic contour tonometry and goldmann applanation tonometry / J Glaucoma 15 : 2 ~ 6
F. A. a. J. M. D. Albert D M / 1994 / Principles and Practice of Ophthalmology / W.B. Saunders Company
C. Po-Jui / 2008 / Implantable parylene-based wireless intraocular pressure sensor / Micro Electro Mechanical Systems, 2008. MEMS 2008. IEEE 21st International Conference on : 58
C. Po-Jui / 2010 / Wireless intraocular pressure sensing using microfabricated minimally invasive flexible-coiled LC sensor implant / J. Microelectromech. Syst 19 : 721 ~ 73
E. Schneider / 2006 / Intraocular pressure measurement-comparison of dynamic contour tonometry and goldmann applanation tonometry / J Glaucoma 15 : 2 ~ 6
F. A. a. J. M. D. Albert D M / 1994 / Principles and Practice of Ophthalmology / W.B. Saunders Company
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