http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
MRI 영상 유도 수술 로봇을 위한 개선된 군집 분석 방법을 이용한 뇌종양 영역 검출 개발
김대관,차경래,승성민,정세미,최종균,노지형,박충환,송태하,Kim, DaeGwan,Cha, KyoungRae,Seung, SungMin,Jeong, Semi,Choi, JongKyun,Roh, JiHyoung,Park, ChungHwan,Song, Tae-Ha 대한의용생체공학회 2019 의공학회지 Vol.40 No.3
Brain tumor surgery may be difficult, but it is also incredibly important. The technological improvements for traditional brain tumor surgeries have always been a focus to improve the precision of surgery and release the potential of the technology in this important area of the body. The need for precision during brain tumor surgery has led to an increase in Robotic-assisted surgeries (RAS). One of the challenges to the widespread acceptance of RAS in the neurosurgery is to recognize invisible tumor accurately. Therefore, it is important to detect brain tumor size and location because surgeon tries to remove as much tumor as possible. In this paper, we proposed brain tumor detection procedures for MRI (Magnetic Resonance Imaging) system. A method of automatic brain tumor detection is needed to accurately target the location of the lesion during brain tumor surgery and to report the location and size of the lesion. In the qualitative assessment, the proposed method showed better results than those obtained with other brain tumor detection methods. Comparisons among all assessment criteria indicated that the proposed method was significantly superior to the threshold method with respect to all assessment criteria. The proposed method was effective for detecting brain tumor.
전자기 구동 시스템을 이용한 마이크로로봇의 3차원 이동 및 드릴링
이걸(Jie Li),최현철(Hyunchul Choi),차경래(Kyoungrae Cha),정세미(Semi Jeong),박종오(Jongoh Park),박석호(Sukho Park) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.5
This paper proposed a novel electromagnetic-driven microrobot system with locomotion and drilling functions in 3D(dimensional) space. Because of the size limitation of the microrobot, it does not have actuator, battery and controller. Therefore, for the driving of the microrobot, electromagnetic actuation (EMA) systems were used. The proposed EMA system consists of three rectangular Helmholtz coil pairs in x, y and z axis and a Maxwell coil pair in z axis. The magnetic field generated in the EMA coil system could be controlled by the input currents of the EMA coils. The Helmholtz coil pairs were used to align the microrobot with the desired direction and also rotate it for the drilling function. In addition, the surface of the microrobot has many bumps to enhance the drilling performance. The Maxwell coil pair in z axis was used for the propulsion of the microrobot. Through the various experiments, Finally. The locomotion and drilling performances of the proposed EMA microrobot system were verified.
전자기 구동 시스템을 이용한 마이크로로봇의 3차원 이동 및 드릴링
이걸(Jie Li),최현철(Hyunchul Choi),차경래(Kyoungrae Cha),정세미(Semi Jeong),박종오(Jongoh Park),박석호(Sukho Park) 대한기계학회 2011 大韓機械學會論文集A Vol.35 No.12
이 논문에서는 전자기구동시스템을 기반으로 이동 및 드릴링 기능을 수행하는 의료용 마이크로로봇 시스템을 제작하고 평가하였다. 마이크로로봇은 너무 작아 내부에 배터리나 제어장치를 삽입 할수없다. 이 결점을 극복하기 위하여 외부에서 전자기 코일 시스템을 이용하여 전자기장의 힘으로 마이크로로봇을 구동 시킨다. 전자기 구동 코일 시스템은 x, y, z 각축에 사각형 타입의 헬름홀쯔 코일 3 쌍과 z축에 솔레노이드형 맥스웰 코일 1 쌍이 배치 되어 있고, 각 코일에 인가되는 전류값의 조절에 따라 구동에 필요한 자기장을 발생 시킨다. 다양한 실험을 통하여 우리는 제안된 시스템을 이용하여 마이크로로봇이 3 차원 공간에서 이동 가능하며 드릴링 기능을 수행할 수 있다는 것을 보였다. In this study, a novel electromagnetic microrobot system with locomotion and drilling functions in threedimensional space was developed. Because of size limitations, the microrobot does not have actuator, battery, and controller. Therefore, an electromagnetic actuation (EMA) system was used to drive the robot. The proposed EMA system consists of three rectangular Helmholtz coil pairs in x-, y- and z-axes and a Maxwell coil pair in the z-axis. The magnetic field generated in the EMA coil system could be controlled by the input current of the EMA coil. Finally, through various experiments, the locomotion and drilling performances of the proposed EMA microrobot system were verified.