• 전자공학회논문지SC
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• 제49권2호
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• pp.55-62
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• 2012

정보기술과 의료기기의 융합에 의해 혈당을 집에서 측정하거나 운동 시에 심박수를 측정하는 것과 같이 건강관련 정보를 언제 어디서나 측정할 수 있게 되었고, 이에 따라 의료를 장소에 구애받지 않고 쉽게 접근할 수 있게 되었다. 최근에 유헬스케어 의료기기 시장이 빠르게 성장하고 있으나 이러한 기기의 안전성과 유효성을 평가하는 가이드라인이 아직 마련되지 않은 실정이다. 이를 위해 식약청, ISO/IEEE, CE 등 국내외의 유헬스케어 관련 규정을 조사하고, 이 중 유헬스케어 의료기기에 관련된 안정성 및 성능 평가에 대한 시험 방법과 항목을 제안하였다. 유헬스케어 의료기기의 가장 큰 특성인 무선 데이터 통신에 있어 데이터 무결성과 기기 사용환경이 다양하기 때문에 환경 요인이 기기에 미치는 영향을 평가하였다. 이를 바탕으로 휴대형 유헬스케어 의료기기의 평가 가이드라인을 제안하였다. 제안하는 지침을 기반으로 휴대형 유헬스케어 기기를 개발한다면 사용자들에게 보다 안전성과 신뢰도 높은 기기를 제공할 수 있을 것으로 기대된다.

• 대한의사협회지
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• 제61권12호
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• pp.702-705
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• 2018

Advances in technology lead to advances in medical devices, and these advances have the positive effect of creating opportunities for beneficial developments in healthcare, such as innovating traditional healthcare processes or expanding opportunities for diagnosing and treating diseases. Nonetheless, device developers, suppliers, users, insurers, and patients all face the challenge of balancing patient safety and health effectiveness with a reasonable profit. In Korea, the New Health Technology Assessment system aims to introduce safe and effective health technology, but this is only effective for the entry of devices onto the healthcare market. This system is not enough for creating a healthy ecosystem in which high-quality technologies and devices survive in the market and naturally exit from the market if not successful. The nation must not lag in the rapid development of medical devices, but the concomitant requirement for patient safety is like two rabbits moving in different directions. There is not enough time to resolve each source of uncertainty for both developers and users. The early adoption of health technologies, including medical devices, offers new opportunities for treatment and diagnosis, but also poses unexpected health risks. Thus, we need to design a plan to generate scientific evidence related to medical devices after they introduced into practice. Additionally, regarding the use of individual medical devices, we believe that the creation of a healthy ecosystem for medical devices by implementing medical device surveillance culture is a way to manage the opportunities and risks of the early introduction of innovative medical devices.

• 의료법학
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• 제24권1호
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• pp.43-65
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• 2023

헬스케어 산업은 제4차 산업혁명 기반 기술과 접목된 디지털 헬스케어로 개인의 건강과 의료에 관한 정보 등을 다루는 분야로 건강관리 서비스와 의료 과학기술이 융합된 형태이다. 패러다임 변화에 따른 디지털 헬스케어는 기존 「의료법」상의 의료행위 개념에 포섭되어 논의가 가능한 것인지 의문이 생긴다. 「의료법」상 의료행위의 개념에 관한 명확한 정의 규정은 없지만, 판례를 통해서 그 개념을 정립하고 있다. 그리고 「의료법」상 의료행위의 주체는 의료인으로 한정하고 있다. 그러나 디지털 헬스케어는 의료인에 의 한 디지털 기술을 이용한 질병 진단과 치료행위를 하는 경우가 있다. 이와는 달리 비의료인에 의해서 가능한 것이 디지털 헬스케어이다. 왜냐하면 디지털 헬스케어는 운동, 식습관 그리고 체중조절 등과 같은 건강관리를 포함하는 개념으로 이해되기 때문이다. 이로 인하여 디지털 헬스케어에 대한 「의료법」상 의료행위 개념에 포섭하는 경우 「의료법」 제27조에 규정된 '무면허의료행위'로 형사처벌의 대상이 된다. 보건의료산업은 디지털 전환과 정보통신기술과의 융복합이 빠르게 진행되고 있다. 이로 인하여 기존의 의료행위와 구분하여 '디지털화된 의료행위' 또는 '정보통신기술(ICT) 기반 의료행위'로 새롭게 규정할 필요성이 대두되고 있다. 의료행위 개념은 고정불변한 개념이 아닌 가변성을 가진다. 그렇다고 이러한 요구에 따라 의료행위 개념의 무한 확장이 아닌 그 범위의 재설정을 요청하는 것이다. 따라서 의료서비스체계에 대한 수요자의 요구를 반영하여 의료행위 개념을 법제화하여야 할 것이다.

• Journal of Industrial and Engineering Chemistry
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• 제67권
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• pp.219-230
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• 2018

The present study examined a moving bed biofilm reactor (MBBR) bioreactor on a laboratory scale for simultaneous removal of atrazine, organic carbon, and nutrients from wastewater. The maximum removal efficiency of atrazine, chemical oxygen demand (COD), total phosphorus (TP) and total nitrogen (TN) were 83.57%, 90.36%, 90.74% and 87.93 respectively. Increasing salinity up to 40 g/L NaCl in influent flow could inhibit atrazine biodegradation process strongly in the MBBR reactor.Results showed that MBBR is so suitable process for efficiently biodegrading of atrazine and nitrogen removal process was based on the simultaneous nitrification-denitrification (SND) process.

• 한국멀티미디어학회논문지
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• 제25권2호
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• pp.345-352
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• 2022

Conducting AI-based fusion business due to the increment of ICT fusion medical device has been expanded. In addition, AI-based medical devices help change existing medical system on treatment into the paradigm of customized treatment such as preliminary diagnosis and prevention. It will be generally promoted to the change of medical device industry. Although the current demand forecasting of medical biotechnology commercialization is based on the method of Delphi and AHP, there is a problem that it is difficult to have a generalization due to fluctuation results according to a pool of participants. Therefore, the purpose of the paper is to predict demand forecasting for identifying promising technology based on building up big data in medical biotechnology. The development method is to employ candidate technologies of keywords extracted from SCOPUS and to use word2vec for drawing analysis indicator, technological distance similarity, and recommended technological similarity of top-level items in order to achieve a reasonable result. In addition, the method builds up academic big data for 5 years (2016-2020) in order to commercialize technology excavation on demand perspective. Lastly, the paper employs global data studies in order to develop domestic and international demand for technology excavation in the medical biotechnology field.

• 대한의용생체공학회:의공학회지
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• 제33권3호
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• pp.105-113
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• 2012

Biopsy is a type of histopathological examinations, in which a physician samples cells or tissues from a patient's suspicious lesion. Such a lesion frequently resides deep inside human body, and then a percutaneous biopsy is therefore performed using a thick needle with the assistance of medical imaging such as computed tomography(CT) and magnetic resonance imaging(MRI). Recently modern robotic technology is being introduced to percutaneous biopsy in order to reduce any possible human error and hazard on physicians caused by medical imaging. After medical imaging locates the exact location of lesion, an optimization algorithm plans the path for a biopsy needle. Subsequently, a robot system moves the biopsy needle to the lesion in accurate and safe way with the control of a practitioner or automatically. In this article, we try to look into the state-of-art of percutaneous biopsy using such robotic technology. We classified percutaneous biopsy robots by mechanical characteristics and by imaging technology. Then, advantage and disadvantage of each class type are described as well as the basic description, and a few representative designs for each type are introduced. Current research issues of robotized percutaneous biopsy are subjectively selected for the readers' convenience. We emphasize the basic technology of actuator and sensors compatible with imaging technology to conclude this review.

• Asian Pacific Journal of Cancer Prevention
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• 제15권8호
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• pp.3763-3766
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• 2014

Human mammary epithelial cells have different proliferative statuses and demonstrate a close relationship with age and cell proliferation. Research on this topic could help understand the occurrence, progression and prognosis of breast cancer. In this article, using significance analysis of a microarray algorithm, we analyzed gene expression profiles of human mammary epithelial cells of different proliferative statuses and different age groups. The results showed there were significant differences in gene expression in the same proliferation status between elderly and young groups. Three common differentially expressed genes were found to dynamically change with the proliferation status and to be closely related to tumorigenesis. We also found elderly group had less status-related differential genes from actively proliferating status to intermediate status and more statusrelated differential genes from intermediate status than the young group. Finally, functional enrichment analyses allowed evaluation of the detailed roles of these differentially-expressed genes in tumor progression.

• 한국컴퓨터정보학회논문지
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• 제27권12호
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• pp.251-258
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• 2022

본 연구는 응급구조학과 학생들의 전공 교육과정에 대한 수행도, 중요도 및 요구도를 분석하여 응급구조학 전공자의 학습 역량을 강화하는데 기초 자료를 제공하고자 하였다. 연구대상은 충남지역의 3개 대학 응급구조학과 학생 217명으로 자료 수집기간은 2021년 12월 13일부터 12월 24일까지이며 1급 응급구조사의 직무 기반 핵심 역량을 바탕으로 구조화된 설문지에 응답한 자료를 분석하였다. 연구결과 응급구조학과 학생들의 학습 역량 강화를 위해서 Borich 요구도가 높은 '구급차량 관리 교육', '졸업 후 전문성 유지를 위한 교육', '병원 내 환자 감시 교육'과 LF 모델의 최우선 영역에 해당하는 '의료지도, 인계 교육', '내과적 응급환자 처치 교육', '병원 내 환자 감시교육', '병원 내 응급환자 진료보조 교육'에 해당하는 교과과정의 보강이 필요하다고 판단된다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권7호
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• pp.3103-3107
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• 2012

Osteosarcoma, the most common primary mesenchymal malignant tumor, usually has bad prognosis in man, with cancer stem-like cells (CSCs) considered to play a critical role in tumorigenesis and drug-resistance. It is known that phosphatidylinositol 3-kinase (PI3K) is involved in regulation of tumor cell fates, such as proliferation, cell cycling, survival and apoptosis. Whether and how PI3K and inhibitors might cooperate in human osteosarcoma CSCs is still unknown. We therefore evaluated the effects of LY294002, a PI3K inhibitor, on the cell cycle and apoptosis of osteosarcoma CSCs in vitro. LY294002 prevented phosphorylation of protein kinase B (PKB/Akt) by inhibition of PI3K phosphorylation activity, thereby inducing G0/G1 cell cycle arrest and apoptosis in osteosarcoma CSCs. Further studies also demonstrated that apoptosis induction by LY294002 is accompanied by activation of caspase-9, caspase-3 and PARP, which are involved in the mitochondrial apoptosis pathway. Therefore, our results indicate PI3K inhibitors may represent a potential strategy for managing human osteosarcoma via affecting CSCs.

• Asian Pacific Journal of Cancer Prevention
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• 제15권15호
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• pp.6415-6419
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• 2014

Purpose: To explore the relationship between SER (time between the start of any treatment and the end of radiation therapy) and the survival of patients with limited-stage small cell lung cancer. Materials and Methods: Between 2008 and 2013, 135 cases of limited-stage small cell lung cancer (LS-SCLC) treated with consecutively curative chemoradiotherapy were included in this retrospective analysis. In terms of SER, patients were divided into early radiotherapy group (SER<30 days, n=76) and late radiotherapy group ($SER{\geq}30$ days, n=59) with a cut-off of SER 30 days. Outcomes of the two groups were compared for overall survival. Results: For all analyzable patients, median follow-up time was 23.8 months and median overall survival time was 16.8 months. Although there was no significant differences in distant metastasis free survival between the two groups, patients in early radiotherapy group had a significantly better PFS (p=0.003) and OS (p=0.000). Conclusions: A short SER may be a good prognostic factor for LD-SCLC patients treated with concurrent chemoradiotherapy.