• 한국응용과학기술학회지
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• 제25권4호
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• pp.429-437
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• 2008

The p-dioxanone can be used to make a variety of commercially useful products particularly where biodegradability is desired, such as fibers, sutures, molded articles, containers, medical devices and surgical clips, film and compostable trash bags. The mole fraction solubility of p-dioxanone in various solvents such as acetone, ethylacetate, tetrahydrofuran, methanol, ethanol, 1-propanol, 1-butanol and 1-pentanol were measured over the temperature range from 263.05 K to 288.45 K. The solubility of p-dioxanone increases with increasing polarity of the solvents.

• Journal of Pharmaceutical Investigation
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• 제16권3호
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• pp.106-109
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• 1986

The elution of di(2-ethylhexyl) phthalate (DEHP) from flexible bags into human blood or transfusion was studied. The conditions of determination of DEHP using high performance liquid chromatography (HPLC) was established as follows: Condition I-column, ${\mu}-Bondapak^{TM}\;C_{18}$; mobile phase, methanol: water=91 : 9 ; flow rate, 1.2ml/min; wavelength, 254nm; injection volume, $10{\mu}l$. Condition II-column, Lichorsorb RP-18$(10{\mu}m)$; mobile phase, methanol: water=94 : 6 ; flow rate, 1.1ml/min; wavelength, 254nm; injection volume, $10{\mu}l$. DEHP was found to be migrating from PVC blood and total parentral nutrient bags into methanol, but not into anti, coagulant drug solution.

• Journal of Preventive Medicine and Public Health
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• 제48권6호
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• pp.330-341
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• 2015

Objectives: Emergency medical personnel (EMPs) are pre-hospital emergency responders who are at risk of exposure to infections and may also serve as a source for the transmission of infections. However, few studies of infection control have specifically addressed EMPs in the Republic of Korea (hereafter Korea). The goal of this study was to assess the current status of infection prevention and control programs (IPCPs) for EMPs in Korea. Methods: A cross-sectional survey was conducted to quantitatively assess the resources and activities of IPCPs. A total of 907 EMPs in five metropolitan cities completed a structured questionnaire from September 2014 to January 2015. The data were analyzed using descriptive statistics, multi-response analysis, and the chi-square test. Results: The mean age of the participants was $34.8{\pm}15.1years$. IPCPs were found to have weaknesses with regard to the following resources: the assignment of infection control personnel (ICP) (79.5%), hand hygiene resources such as waterless antiseptics (79.3%), the use of paper towels (38.9%), personal protective equipment such as face shields (46.9%), and safety containers for sharps and a separated space for the disposal of infectious waste (10.1%). Likewise, the following activities were found to be inadequately incorporated into the workflow of EMPs: education about infection control (77.5%), post-exposure management (35.9%), and the decontamination of items and spaces after use (88.4%). ICP were found to have a significant effect on the resources and activities of IPCPs (p<0.001). The resources and activities of IPCPs were found to be significantly different among the five cities (p<0.001). Conclusions: IPCPs for EMPs showed some limitations in their resources and activities. IPCPs should be actively supported, and specific IPCP activities for EMPs should be developed.

• 대한의용생체공학회:의공학회지
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• 제44권1호
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• pp.64-72
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• 2023

Initial burn wound care is one of the important factors in the outcome of burn treatment. In this study, we tried to develop spray-type alginate hydrogel dressing with advantages such as promoting wound healing, reducing pain, and increasing ease of use for emergency burn treatment. Spray implementation, physical properties, and cytotoxicity of the newly developed spray-type alginate hydrogel dressing were evaluated. As a result, a new functional spray-type hydrogel dressing with excellent physical properties and biocompatibility was developed along with the development of spray able containers, and it was confirmed that it could be applied as a treatment for skin regeneration in the future.

• 대한임상독성학회지
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• 제20권1호
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• pp.35-38
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• 2022

Many commonly used household chemicals and medical eye drops look alike, resulting in a worldwide increase in incidences of accidents caused by confusion between similar-looking agents. In this case report, we present two patients who visited the emergency department following inadvertent instillation of tinea pedis treatment solution instead of eye drops. Both patients developed corneal chemical burns following the accidental application. Notably, the visual acuity and symptoms eventually recovered for both patients after hospitalization. However, complete recovery occurred only after several weeks. Both patients were relatively old and had been prescribed eye drops after previous ophthalmic surgery. Since the eye is a sensory organ that receives visual information, ocular injuries significantly affect the quality of life and social functioning of the patient. Incidences of accidental misidentification of eye drops are steadily increasing in South Korea; unfortunately, regulatory policies are unavailable to avoid such hazards. Therefore, physicians should be mindful of the potential risks associated with misidentification of everyday household products and must spend time educating patients when prescribing eye drops. Policy regulations are warranted for products with containers that resemble eye drop bottles. Such items need to be clearly labeled with additional warnings to prevent misidentification and accidental ocular instillation.

• 한국정보통신학회논문지
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• 제19권8호
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• pp.1845-1852
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• 2015

바코드 시스템과 전자태그(RFID)부터 저 전력 블루투스 기술을 활용한 비콘(Beacon)까지 진료 및 검사 단계를 자동화하고 스마트 기기와 연계된 진료 정보를 이용하는 등 정보기술과 보건‧의료 분야의 용합이 널리 확산되고 있다. 본 논문에서는 환자에게 혈액을 수혈하는 과정에서 다른 혈액형이 수혈되는 사고를 예방하기 위해 안전한 수혈관리를 위한 모바일 헬스케어 시스템을 설계하고 구현하였다. 환자 팔찌, 채혈 용기, 혈액백 및 의료진 신분증의 바코드에 저장된 정보를 스마트 기기로 인식하여 환자의 정보와 매칭시켜 안전하고 효율적인 수혈이 가능하도록 구현하였다. 본 논문에서 제안하여 구현한 수혈관리 모바일 헬스케어 시스템을 종합병원의 수혈 과정에 적용한 결과, 안전하고 효율적인 수혈이 가능하여 수혈 과정에서 발생하는 사고의 예방이 가능한 것으로 확인되었다.

• 대한방사선기술학회지:방사선기술과학
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• 제43권5호
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• pp.359-365
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• 2020

This study aimed to investigate the causes of bacterial growth to prevent infection caused by ultrasound gel and gel containers in contact with patients during ultrasonography. To investigate bacterial contamination during manufacturing or storage, we cultured ultrasound gels originally supplied from three manufacturers. To analyze bacterial growth according to the lapse of time and frequency of use of the ultrasound gel container, the gel and container were cultured at regular intervals every week for 4 weeks. In addition, to determine the source of infection, the examiner's hand was inspected with hand plate and the degree of bacterial contamination was measured before the test. As a result of the study, bacteria were not detected in the gel provided at the initial supply, and in the gel and gel container used repeatedly for 4 weeks, the same bacteria residing on the skin were identified in the examiner's hand, such as Staphylococcus epidermidis, Micrococcus luteus, Leuconostoc mesenteroid spp cremoris, Kocuria rhizophila, and etc. Separated strains were classified as those of the low- or non-pathogenicity; however, most of these strains may render fatal consequences to patients of lower level of immunity due to acquired tolerance to antibiotics. At week 1, when the number of tests was the highest, 44 colonies were identified, and at week 4, when the number of tests was the lowest, 4 colonies were identified. As r=0.994, it was found that the number of colonies increased as the number of tests increased. In conclusion, it was confirmed that the cause of the infection was not the ultrasound gel, but the examiner's hand. The ultrasound gel or gel container may be contaminated by skin flora of examiner's hands, which can cause opportunistic infection in patients with low immunity. The ultrasound gel or gel container may be contaminated by skin flora of examiner's hands, which can cause opportunistic infection in patients with low immunity. Therefore, it was confirmed that thorough hand disinfection was necessary to block healthcare-associated infections.

• 센서학회지
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• 제24권2호
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• pp.113-118
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• 2015

Intravenous (IV) infusion set is one of the most common treatment methods applied to hospitalized patients. However, it is necessary to check the injection of IV solution in order to prevent patients from any possible medical injuries. In this paper, using the optical sensors to detect exhaustion of IV solution was proposed. The optical sensor is coplanar structure composed of LED and photodiode which is installed according to focal distance of the lens. These two elements detect exhaustion of IV solution at the desired point conveniently. Through the results of experiments using various wavelength of LED (R.G.B), the blue LED was selected to the optimum light source. The suggested optical sensor can detect exhaustion of IV solution by the differences in the amount of light which is caused by properties such as total reflection, refractive index and scattering. From the implementation, the detector is applicable to both containers of IV solution, glass bottle and plastic pack. And also the result shows apparent differences according to existence of IV solution even if the IV solution color and illumination were changed.

• 한국환경복원기술학회지
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• 제8권5호
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• pp.19-27
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• 2005

The earth is a huge magnet. All organisms live under the magnetism of earth. The magnetism influences the ions in the cells of organisms and variously functions to lives as well. The medical treatment with magnet has come down from the ancient, it has an effect on the plants' growth. But there are no scientific studies about the influences of magnetism on plant growth. Accordingly, the experiment about the influence of magnetism on several foliage plants was carried out in this study. The promotion of plants' growth led by magnetism will be the method to save the management cost of horticultural market by early shipment. As a results of this experiment, plants treated with magnets showed excellent growth especially in length growth. The experiment results of the respective plants are the following. 1. Rhapis flabelliformis : This have grown so very well in the container lined with magnets as time goes by. Showing the significant(p<0.05) differences, the length growth of Height and Length of leaves was especially distinguished. 2. Howea belmoreana : This has grown well in all containers. Showing the significant(p<0.05) differences, the length growth of Height and Length of leaves was especially distinguished. 3. Chamaedorea seifrizii : There have been the growth differences between Height and Length of leaves as time goes by. The growth of Height and Length of leaves in the container lined with magnets has been excellent. The number of leaves and number of branch generally had no big differences but the growth of Height and Length of leaves was excellent in the magnet container. The method of plant growth promotion with magnet should save the management cost for this reason. Therefore the succeeding studies about the plant growth under the influence of magnet intensity and kind must be performed. The studies with various plants are needed to activate the program for growing plants with magnet.

• 디자인융복합연구
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• 제15권4호
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• pp.17-29
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• 2016

편의점에서 판매되고 있는 안전상비의약품은 약사법에 따라 의약품의 용기나 포장 또는 첨부문서 기재사항을 정함으로써 의약품의 투약과실을 예방하고 알기 쉽고 정확한 의약품 정보를 제공하고 있다. 하지만 제한된 포장면적으로 인해 정보의 가독성이 떨어져 소비자들이 구매하기에는 어려움이 따른다. 본 연구에서 알약 형태인 8개 품목을 중심으로 규정에 따른 포장 분석을 실시하고 외국인 10명과 내국인 20명의 소비자들을 대상으로 설문 및 심층 인터뷰를 통하여 사용자 의식 조사를 진행하였다. 그 결과, 가장 많이 구매하는 품목은 해열제라는 것과 구매 전 의약품 포장에서 찾는 정보는 효능·효과, 용량·용법, 사용상의 주의사항의 순이라는 것을 알 수 있었다. 포장정보에 대한 이해도는 내국인의 경우 이해에 큰 문제가 없었던 반면, 포장의 모든 표기가 한글로만 되어있어 외국인의 40%이상에서 이해하지 못한다고 응답하였다. 디자인 개선안으로 픽토그램과 영어표기를 적용해 효능·효과와 용량·용법, 연령 총 세 가지로 각 포장의 윗면 오른쪽에 위치하여 한 눈에 어떤 약인지 구별할 수 있게 하자는 제안하고자 한다. 이를 통해 소비자들이 구매함에 있어 이해도와 편의성을 높일 수 있길 기대한다.