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홍동희(D. H. Hong),진재현(J. H. Jin),정재후(J. H. Jung),김영환(K. H. Kim),윤지섭 (J. S. Yoon) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
During demonstrations of a process conditioning spent nuclear fuels, it may be necessary to transport modularized parts of process equipment out of a hot cell because of modules" failure or completion of demonstrations. It may be not easy to transport modules because modules will be contaminated. For this purpose, we have developed a prototype of a device transporting radioactive contaminated materials. We have analyzed conditions of a hot cell and requirements of the device, designed and manufactured a scaled-down prototype of the device, and done some performance tests such as running on the rail, running on the flat floor, and carrying capability of a sliding upper part. From the tests, it has been shown that running on the rail and floor was smooth but the sliding part was deflected if the sliding distance was long. These result will be reflected to a design of the improved transporting device which will be used during demonstrations.
편평세포암종 환자에서 상악골 부분 절제술시 출혈 처치를 위한 외경동맥 결찰
양재영,장훈,유미현,황대석,김욱규 대한구강악안면병리학회 2020 대한구강악안면병리학회지 Vol.44 No.4
To accurately determine the resection margin for maxillary cancer, it is important to closely examine the extent of tumor infiltration into the maxilla, nasal cavity, maxillary sinus, palate, and surrounding tissues. Various methods have been described for the resection of maxillary tumors, such as alveolectomy, partial maxillectomy, subtotal maxillectomy, total maxillectomy, and extended maxillectomy. The objective of this study was to introduce external carotid artery (ECA) ligation on the ipsilateral side, a perioperative bleeding control method with fewer complications. Incidence of major bleeding during maxillectomy is a rare but potentially life-threatening complication. Cases of temporary bleeding from an internal maxillary artery or other sites can be stopped, packed, and compressed. However, bleeding control is eventually achieved by ligation of the ECA or selective embolization. Herein, we report the case of a 60-year-old male with squamous cell carcinoma of the right maxilla, which was eventually treated with subtotal maxillectomy along with an elective ECA ligation for intraoperative bleeding control. The procedure produced no preoperative or postoperative bleeding. ECA ligation is a simple, effective, safe, and (at the operator’s discretion) recommended method of perioperative bleeding control during maxillectomy.