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김한일 ( Han Il Kim ),정한별 ( Han Byul Jung ),김노형 ( Rho Hung Kim ),박길문 ( Gil Moon Park ),김근형 ( Geun Hyung Kim ),이행남 ( Hang Nam Lee ) 조선대학교 공학기술연구원 2009 공학기술논문지 Vol.2 No.1
A gait training system for patients with gait disorder was developed. These systems leads gait joint movements given the patient who cannot carry out an independent gait. It provided a normal stance-swing ratio of 60 : 40 because of the eccentricity revolution of a gear. In this study, motion trajectory of a knee & ankle joint was evaluated and compared a measured trajectory with three-dimensional motion analyses system with the results of multi-body dynamics simulation during the gait training in a prototype of a developed gait training system. In general, predictions from the simulation study were in good agreement with experimental results from the motion analysis. The clinical application by a continuous dynamics simulation studies and gait analysis was expected to be developed by gait training system which would be helpful to recover gait ability of patients with gait disorder.
김한일(Hang Il Kim),임성순(Sung Sun Im),이동윤(Dong Yoon Lee),이재수(Jae Soo Lee),이준상(Joon Sang Lee),강종식(Jong Sik Kang) 대한소화기학회 1987 대한소화기학회지 Vol.19 No.1
Leiomyoma of the esophagus is a rare smooth muscle tumor. Authors report a case of leiomyoma of the esophagus diagnosed by the esophagogram, chest C-T, esophagoscopy and histologically. The patient was 32-year old male, and complained of nausea, vomiting and substernal discomfort 1 week before admission. The esophagogram revealed crescent-like smooth filling defect through upper to middle one third of the esophagus, but the mucosal folds were intact. Chest C-T showed well defined solid mass in posterior portion of the esophagus. Esophagoscopy revealed normal mucosal patterns with swollen hard protruded lesion from the 25 cm to the 30 cm level from the upper incisors. L'horacntomy was performed at right 4th intercostal space, and a firm 4.8x2.2x1.8cm sized mass was enucleated by blunt dissection without any injury of the mucosa of the esophagus. The diagnosis of leiomyoma was confirmed with histopathological findings.