• 한국정밀공학회지
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• 제26권12호
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• pp.138-145
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• 2009

Custom medical treatment is being widely adapted to lots of medical applications. A technology for 3D modeling is strongly required to fabricate medical implants for individual patient. Needs on true 3D CAD data of a patient is strongly required for tissue engineering and human body simulations. Medical imaging devices show human inner section and 3D volume rendering images of human organs. CT or MRI is one of the popular imaging devices for that use. However, those image data is not sufficient to use for medical fabrication or simulation. This paper mainly deals how to generate 3D geometry data from those medical images. A new image processing technology is introduced to reconstruct 3D geometry of a human body vacancy from the medical images. Then a surface geometry data is reconstructed by using Marching cube algorithm. Resulting CAD data is a custom 3D geometry data of human vacancy. This paper introduces a novel 3D reconstruction process and shows some typical examples with implemented software.

• Tuberculosis and Respiratory Diseases
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• 제84권1호
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• pp.46-54
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• 2021

Background: The aim of this study was to investigate inhaler device handling in elderly patients. Inhaler devices with respect to misuse and error correction were also compared. Methods: Inhaler use technique was assessed using standardized checklists at the first visit and 3-month follow-up visit after retraining. The primary outcome was difference in the acceptable use ratio among inhaler devices. Secondary outcomes included differences in error correction, the most common step of misuse, and factors affecting the accuracy of inhaler use. Results: A total of 251 patients (mean age, 76.4 years) were included. The handling of 320 devices was assessed in the study. All patients had been trained before. However, only 24.7% of them used inhalers correctly. Proportions of acceptable use for Evohaler, Respimat, Turbuhaler, Ellipta, and Breezhaler/Handihaler were 38.7%, 50.0%, 61.4%, 60.8%, and 43.2%, respectively (p=0.026). At the second visit, the acceptable use ratio had increased. There were no significant differences among inhaler types (Evohaler, 63.9%; Respimat, 86.1%; Turbuhaler, 74.3%; Ellipta, 64.6%; and Breezhaler/Handihaler, 65.3% [p=0.129]). In multivariate analysis, body mass index, Turbuhaler, and Ellipta showed positive correlations with acceptable use of inhalers, whereas Chronic Obstructive Pulmonary Disease Assessment Test score showed a negative correlation. Conclusion: Although new inhalers have been developed, the accuracy of inhaler use remains low. Elderly patients showed more errors when using pressurized metered-dose inhalers than using dry powder inhalers and soft-mist inhalers. However, there were no significant differences in misuse among inhaler devices after individual training. Results of this study suggests that repeat training is more important than inhaler type.

• 한국콘텐츠학회논문지
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• 제18권11호
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• pp.462-474
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• 2018

생체 감지기술 발달은 그동안 거대한 전문 의료기기에서만 가능했던 다양한 생체 정보 수집을 간편하게 가능케 하였다. 센서 소형화는 진단기기의 휴대성을 높여 기존에 병원에 직접 가서 해야만 했던 다양한 건강 진단을 생활 속에서 간편히 수행할 수 있게 하였다. 스마트폰 같은 휴대기기에 센서를 결합하거나, 첨단 IOT(Internet of Things, 사물인터넷) 기술을 적용해 체내 삽입형, 혹은 부착 가능한 초소형 모듈 등 의료기기의 새로운 폼팩터를 만들어냈다. 또한, 측정결과를 스마트폰 등 휴대용 정보기기를 통해 즉시 확인할 수도 있다. 아직 국내에서는 상용화가 더디게 이루어지고 있지만, 미국 등 원격의료 서비스를 허용한 나라에서는 이 분야에서 다양한 양상으로 신기술 적용이 이루어지고 있다. 세계적으로 가장 빠르게 고령화가 진행 중인 대한민국에서 의료수요, 공급, 그리고 비용 문제는 점점 커지고 있다. 이런 상황에서 새로운 건강관리 개념인 스마트 헬스케어가 기존의 의료체계를 보완할 수 있을지 크게 주목받고 있다. 본 연구는 스마트 헬스케어와 관련된 기술 동향을 확인하고, 다양한 헬스케어 제품을 UX 디자인적 측면에서 유형화하였다. 또한, 스마트 헬스케어 기술을 대상 사용자인 노인에게 적용하기 위한 UX 디자인 접근방법과 지침을 제시하였다. 본 연구가 새로운 사회적 문제인 고령사회 헬스케어 문제 해결에 돌파구가 될 UX 디자인 분야의 기반자료가 되기를 기대한다.

• Infection and chemotherapy
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• 제50권4호
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• pp.319-327
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• 2018

Background: Lancet-related needlestick injuries (NSIs) occur steadily in clinical practices. Safety-engineered devices (SEDs) can systematically reduce NSIs. However, the use of SEDs is not active and no study to guide the implementation of SEDs was known in South Korea. The lancet-related NSIs may be eliminated to zero incidence using a SED lancet with effective sharp injury protection and reuse prevention features. Materials and Methods: We implemented a SED lancet by replacing a conventional prick lancet in a tertiary hospital in a sequential approach. A spot test of the new SED was conducted for 1 month to check the acceptability in practice and a questionnaire survey was obtained from the healthcare workers (HCWs). A pilot implementation of the SED lancet in 2 wards was made for 1 year. Based on these preliminary interventions, a hospital-wide full implementation of the SED lancet was launched. The incidence of NSIs and cost expenditure before and after the intervention were compared. Results: There were 29 cases of conventional prick lancet-related NSIs for 3 years before the full implementation of SED lancet. The proportion of prick lancet-related NSIs among yearly all kinds of NSIs during two years before the pilot study was average 11.7% (22/188). Pre-interventional baseline incidence of all kinds of NSIs was 7.01 per 100 HCW-years. After the full implementation of SED lancet, the lancet-related NSIs became zero in the 2nd year (P = 0.001). The average direct cost of 18,393 US dollars (USD) per year from device and post-exposure medical care before the intervention rose to 20,701 USD in the 2nd year of the intervention. The incremental cost-effectiveness ratio was 210 USD per injury avoided. Conclusion: The implementation of a SED lancet could eliminate the lancet-related NSIs to zero incidence. The cost increase incurred by the use of SED lancet was tolerable.

• International journal of advanced smart convergence
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• 제4권2호
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• pp.145-153
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• 2015

Development of IT technology, in combination with the medical area, a number of developments have been made of the digital advanced medical devices, also increased interest in health, sharing of medical information has become increasingly necessary. Standardization for medical information sharing to satisfy these requirements have been studied. However, the medical information system is to build a system independent hospital itself, is difficult to share and exchange medical data with other medical institutions. In this paper, we provide a medical cloud system that can share medical information. Use DBaaS of cloud services. And is an international standard to have a HL7 share information by forming a meta-schema, each of the data transfer, the format of the document oriented data solves the heterogeneity between hospitals. Extracts the required field name of examination information, to exchange information with each of the local information and mapping. Health diagnostic information in the present study and diagnosis through accurate information sharing and exchange is possible ongoing management.

• 의료법학
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• 제16권2호
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• pp.159-193
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• 2015

병원감염 사례에 관한 판결의 주류적 태도는 병원감염 발생으로 인한 손해의 분담을 사실상 환자 측에 전가하는 문제가 있다고 판단되므로, 손해의 공평 타당한 분담을 그 지도 원리로 하는 손해배상제도의 이념에 비추어 환자 측의 증명책임을 대폭 완화하기 위한 방법을 강구할 필요성이 있다. 이와 관련하여 진료계약을 민법상 전형계약으로 규정하고, 병원감염과 같은 의료 측이 전적으로 지배할 수 있었던 경우에는 일반적 진료상 위험이 실현된 때 진료자의 오류가 추정된다고 명문으로 과실추정규정을 둔 독일민법을 검토하였다. 진료계약은 매우 빈번하고 광범위하게 일반 국민의 실생활에서 체결되고 있으며, 그로 인한 분쟁도 다양하게 발생하고 있으므로, 진료계약을 독일과 같이 민법의 전형계약으로 규정함으로써 계약 내용과 분쟁 발생 시 증명책임 등에 관해 규율할 필요성이 있다. 병원감염 사건의 경우 법률에 의해 과실을 추정하고, 병원감염 예방을 위한 노력을 철저히 시행한 기관에 한하여 병원감염 사고로 인한 손해가 발생한 경우 그 비용을 지원하도록 사회보험을 통한 제도적 보완이 필요하다고 생각되며, 향후 이에 관한 면밀한 연구와 검토가 요구된다.

• 한국전자통신학회논문지
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• 제11권9호
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• pp.917-922
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• 2016

사람들의 건강상태를 모니터링하기 위해 뇌파신호에 관련된 많은 연구가 진행되고 있다. 특히, 병원에 상주하는 환자들은 뇌경색, 간질 등과 같은 위급상황에 대비하여 모니터링할 필요가 있다. 뇌파 네트워크 서비스의 안정성을 요구하는 효율적인 네트워크 토폴로지가 필요하며 본 실험을 위해 OPNet 시뮬레이터를 활용하였다. 따라서, 환자들의 뇌파는 네트워크에 있는 센서장치로부터 읽어들인다. 네트워크의 성능을 비교하기위해 두 가지의 센서 네트워크 토폴로지를 제안하고 시뮬레이션하였다. 하나는 지역화된 네트워크이고 다른 하나는 비지역화된 네트워크이다. 옵넷시뮬레이터를 이용하여 시뮬레이션을 수행하였다.

• Healthcare Informatics Research
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• 제24권4호
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• pp.387-393
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• 2018

Objectives: This paper describes an experience of implementing seamless service trials online and offline by adopting Internet of Things (IoT) technology based on near-field communication (NFC) tags and Bluetooth low-energy (BLE) beacons. The services were provided for both patients and health professionals. Methods: The pilot services were implemented to enhance healthcare service quality, improve patient safety, and provide an effective business process to health professionals in a tertiary hospital in Seoul, Korea. The services to enhance healthcare service quality include healing tours, cancer information/education, psychological assessments, indoor navigation, and exercise volume checking. The services to improve patient safety are monitoring of high-risk inpatients and delivery of real-time health information in emergency situations. In addition, the services to provide an effective business process to health professionals include surveys and web services for patient management. Results: Considering the sustainability of the pilot services, we decided to pause navigation and patient monitoring services until the interference problem could be completely resolved because beacon signal interference significantly influences the quality of services. On the other hand, we had to continue to provide new wearable beacons to high-risk patients because of hygiene issues, so the cost increased over time and was much higher than expected. Conclusions: To make the smart connected hospital services sustainable, technical feasibility (e.g., beacon signal interference), economic feasibility (e.g., continuous provision of new necklace beacons), and organizational commitment and support (e.g., renewal of new alternative medical devices and infrastructure) are required.

• 대한전기학회논문지:시스템및제어부문D
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• 제54권5호
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• pp.315-323
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• 2005

The recent development of embodiment technology of the medical images makes most medical institutions introduce PACS in haste. However, while many older HIS and PACS systems are not yet capable of some of the integration, several new systems are moving rapidly in that direction. Typical PACS system architecture begins with the HIS since this is where the correct patient demographic information and in many cases the orders originate. So, PACS developed convenience of users and to satisfy user's demand because of financial limitations and administrator-oriented considerations in the process of development. Therefore, we have developed a CDA (Clinical Document Architecture) based PACS with HIS, by which we can search and refer to the patient's medical images and information with few restrictions of time and space for diagnosis and treatment. Target model of this research limited to 135 of hospital have 200 beds. We'll make more effort to develop the application which insures the better quality and information of medical images. Medical Image History manages the patient's image files and various medical informations like film chart in connection with time. This trial will contribute to the reduction of the financial loss caused by unnecessary devices and improve the quality in the medical services. The demand on the development of the program which refers to the medical data quickly and keeps them stable will be continued by the medical institute. This will satisfy the client's demand and improve the service to the patients in that the program will be modified from the standpoint of the users.

• 대한건축학회논문집:계획계
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• 제33권12호
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• pp.19-28
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• 2017

The purpose of this study is to propose a design methodology to build temporary isolation rooms when infectious diseases suddenly occur in a certain region, such as the case of MERS-Cov in South Korea in 2015. Although most big hospitals usually have isolation rooms, they are expensive and dangerous to run such facilities on normal and typical days. To deal with these problems in this research, shipping containers are chosen as devices used to build the temporary isolation rooms near the original hospital. To do so, firstly, a prototype for the temporary isolation room was designed with the three part modules. The first part is for the medical team; the second part including the isolation rooms is for patients; the third part is for medical selection rooms to test the specimens. Secondly, the plan was compared with the MERS-Cov infection control guidelines. Finally this prototype is applied into the Yong-in Yon-sei severance hospital and then evaluated through a CFD simulation using STAR-CCM+(ver.9.06) for checking infectious bacterium movement in this prototype. The result showed that the prototype is effectively safe for patients tested as negative, patients waiting to be tested, and the medical team.