• Proceedings of the KOSOMBE Conference
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• v.1989 no.05
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• pp.81-83
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• 1989

In surgery the hemostatic control is very important for the parenchymatous organs. These organs consist of the fragile and the blood content tissues such as liver, spleen and kidney, etc.. One of the control methods to solve this problem is to insert the mono polar typed needle electrode, which gathers the thermal effect of microwave, directly into tissues so as to coagulate and stop the hemorrhage. This method has same advantages: First, the range of the heat energy is limited. Second, the coagulation, the hemostatic characteristic, and stability are excellent. Third, more convenient operation is possible. This paper is aimed to manufacture the microwave tissue coagulation system and to suggest the new direction for development, hereafter.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2007.06a
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• pp.480-480
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• 2007

This paper performed the basic study for developing the light therapy equipment for medical treatment. We developed the equipment for medical therapy using a high brightness LED. This equipment was fabricated using a micro-controller and a high brightness LED, and designed to enable us to control light irradiation time, intensity, frequency and so on. Especially, to control the light irradiation frequency, and to control the change of output value, TLC5941 was used. Control stage is divided into 4 step by program. Consequently, the current value could be controlled by the change of level in Continue Wave(CW) and the output of a high brightness LED could be controlled, stage by stage.

• Quality Improvement in Health Care
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• v.5 no.2
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• pp.190-201
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• 1998

Background : Medical equipments take a very important role in diagnosis and treatment of disease in modern medicine and effective maintenance of the equipments is a necessary to provide a good health care to the public. After developing a new QC program for effective maintenance of medical equipments and practicing it for a year, we report the results of the new program. Methods : The maintenance data of 9 equipments in 8 categories including a CT Scanner were analyzed with regard to the parts responsible for most frequent failure and cause of the failure. After learning the most frequent failure part and cause of the failure, we developed a new QC program that emphasizes preventive maintenance of the most frequent failure part. We compared the number of failure per year and active rate of each equipment before and after the adoption of the new QC program. Results : The average number of failure per year per equipment was 20.7 before and it decreased by 43% to 11.9 after adoption of the new QC program. The average active rate of the equipments was 92.6% before and it increased by 3.2% to 95.8% after adoption of the new program. Conclusions : The practice of the new QC program appears very useful as it decreased the failure rate and increased the active rate of the equipments.

• Korea Journal of Hospital Management
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• v.2 no.1
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• pp.65-79
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• 1997

This study aims to measure in-patients' willingness to choose the same hospital, and to define the related factors. The willingness was measured by the fact whether in-patients would return to the same hospital for their future hospitalization and can be said as the essence of ascertaining patients' satisfaction. Data was collected from 236 patients hospitalized in two hospitals selected according to its superiority, one being superior in medical technique, the other being superior in facility and equipment. To enhance the comparability between the two hospitals, the department and the diagnosis were matched, and structured questionnaires were self-fill-up. The main findings are as follows. Hospitals were analyzed by their superiority : medical services, facility and equipment. In case of hospitals with superior medical services, the willingness was proportional to positive doctor-patient relationship, to satisfaction with the medical level, and to the acknowledgement of utility in cure. In case of hospitals with superior facility and equipment, the willingness was proportional to the satisfactory state of overall facility. Two types of hospitals were combined and analyzed. The willingness for choosing hospitals with superior medical services was stronger than that for choosing the other hospitals. The satisfaction with overall facility, satisfaction with medical level, acknowledgement of utility in cure, positive doctor-patient relationship, and better consultation produced higher willingness to choose the same hospital. The willingness for the option shows to what degree the hospital suffices patients' expectation. Patients' understanding views were obviously influential. The satisfaction level for medical aspect was more influential than the level for non-medical aspect.

• Proceedings of the IEEK Conference
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• 2007.07a
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• pp.455-456
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• 2007

Nowaday it is main issues for us to protect from the polluted water which is flowing in streams and rivers simultaneously. This paper proposed a water maintenance control system using pH sensor. Also the work enables water analysis downloading VHDL coding to FPGA through Max+plus II simulation tool for display realization.

• The Journal of the Korean dental association
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• v.53 no.8
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• pp.530-537
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• 2015

Conceptually, the emergency is classified as an urgency and an emergency. The Urgency is not immediately life threatening, but could become so if not resolved promptly. So, it requires prompt patient care same as in the emergency situation. However, the emergency is immediately life threatening and requires immediate action, such as calling 119 and basic life support. Most medical emergencies in the dental clinic cases are urgencies. The incidence of true emergencies is approximately 1/1,000,000. Adequate managing medical urgencies are important because the chance of encountering medical emergencies in the dental clinic is high and higher these days especially because of rapidly aging Korean society. Many dentists indicate that many dentists feel difficulties to recognize and treat medical problems. This paper reviews the concept of medical emergencies and how to cope with commonly occurring urgencies in the dental clinic such as loss of consciousness, hypoglycemia, hyperventilation syndrome. The best treatment for medical urgencies and emergencies in the dental clinic is prevention. Also, it is required to make preparation for emergency situations such as CPR education for dentists and being well-acquainted with equipment and drugs for the emergency care as well as to systemic medical evaluation, patient monitoring, and sedations for controlling patient's anxiety and pain. In this paper, simple algorithms based on guidelines for common urgencies in the dental clinic are suggested. In conclusion, every dentist has competencies to do the urgency care adequately and basic life support. Also, advanced cardiac life support is strongly recommended when sedation is performed in the clinic.

• Journal of the Korean Society of Radiology
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• v.12 no.3
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• pp.367-372
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• 2018

The supply of medical services using high-priced medical equipment is increasing due to the medicalization of medical science. The level of medical knowledge of medical consumers and the ability to select medical institutions are required to provide high quality medical services because of the popularization of medical information. As the attitudes of medical consumers toward medical institutions change, medical institutions also need to change their perception to improve customer satisfaction. The purpose of this study is to analyze the difference of medical service satisfaction according to the medical knowledge about the utility of PET / CT in order to change the consciousness structure of medical service. The results of this study showed that both medical satisfaction and environmental satisfaction were high in those who had medical knowledge about their own illness and the usefulness of PET / CT. Therefore, medical institutions will need a practical medical service countermeasures to provide medical information by noticing the changes in perception of the medical knowledge of medical consumers, rather than providing formal medical services.

• Journal of The Korea Institute of Healthcare Architecture
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• v.19 no.3
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• pp.21-28
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• 2013

Purpose: General hospital in korea is getting large-scaled, specialized and upgraded. So, nursing unit of race track type has been advanced along with a spatial organization, building equipment and environmental approach. This study is to search the guidelines for renovation of nursing unit with race track type in the case of K university hospital in Daejeon. Methods: 9 cases of recently opened general hospital has been analyzed for spatial and environmental design solution. Questionnaires and interviews about user needs of nursing staff, patient and visitors, have been conducted for a nursing care system and facility of nursing units in K university hospital. Results: The user needs are represented as followings. Center core public zone in each floor plan and center core nursing station and supporting areas in nursing unit are good for an adjacency and separation of spatial organization. Toilet of group patient room is necessary to equip for easy, safe and infective aspects, and so toilet install will decrease the patient number and increase the nursing care service. Hall type of station front is good for visibility and observation. It is appropriate to renovate into south facing group patient room for privacy, enough space for nursing care facility and supporting area, enough width of door to move portable medical equipment, room for medical doctor and practical student, noise absorbing of day room. Implications: Upgrading the nursing care service and facility equipment is necessary to reflect the user needs and cooperate with hospital management.

• Journal of Biomedical Engineering Research
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• v.29 no.1
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• pp.82-87
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• 2008

In this paper, the study was carried out to design and implement the medical compound stimulator based on the preexisting individual medical stimulators with Low frequency, High frequency and cooling stimulation. The proposed equipment is designed to compound all the functions including a cooling stimulation with a range of $0{\sim}20^{\circ}C$ and the verified low and high frequencies of 250Hz, 500Hz, 1KHz and 1MHz respectively from the previous clinical experiment with a consideration of its credibility and efficiency. Also, it was constructed by using a new technique, thermoelectricity semiconductor with a consideration of miniaturization and stability. In accordance with patients' treatment purpose, the hand piece of low frequency/cooling stimulation and High frequency/cooling stimulation were separately designed for convenience. The frequency, accuracy and other factors of implemented medical compound stimulator was satisfied according to its measurement. It was also tested by Korean Testing Laboratory (KTL) for its stability and efficacy and it confirmed that the medical compound stimulator is suitable for use as it fits in with the medical equipment standards.

• The Korean Journal of Nuclear Medicine Technology
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• v.26 no.2
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• pp.37-42
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• 2022

Purpose Since 1985, the Korean society of nuclear medicine technology (KSNMT) has been engaged in academic activities related to nuclear medicine imaging. From 2017 to 2021, the papers published in the journal were classified by the specific fields to examine the trends in the research and the direction of nuclear medicine in comparison with the papers submitted to the Korean Society of Nuclear Medicine (KSNM) during the same period. Materials and Methods From 2017 to 2021, papers submitted to KSNMT and KSNM were classified and databaseization using the Excel program by submission type, examination equipment, and examination field. Through this data, the number of papers published in journals by year, the number of papers submitted by detailed fields, and key words by era were analyzed and compared. Results The papers included by journal was 57 KSNMT and 280 KSNM. The major large classification of equipment, PET, Planar and SPECT was 26.3%, 21.1%, 19.3% in the KSNMT, KSNM was 49.6%, 6.4%, and 9.3%, with 66.7% and 65.3%, respectively. the major medium classification of equipment, industrial safety, urogenital system, nervous system, and quality control accounted for 54.4% of the total papers of the total ratio in the KSNMT, while the medium classification of oncology, endocrine system, urogenital system, therapy, and nervous system accounted for 61.1% of KSNM. In the major small classification of image acquisition, improvement effect, and exposure management accounted for 70.2% in KSNMT, while the items of image acquisition, report, and improvement effect accounted for 60.7% in KSNM. The major keywords except for equipment-related keywords such as PET/CT, PET/MR, and SPECT were SUV, Planar Image, and Respiration Gating Method in KSNMT and Ga68, Thyroid, and Lymphoma in the KSNM. Conclusion When checking the last 5 years of submissions, we can see that KSNMT is mainly concerned with image acquisition using existing radiotracers, while KSNM has focused on new radiotracers such as ⁶⁸Ga, ¹⁷⁷Lu, etc., and new medical technologies of theranostic. It has been confirmed that more PET-related papers than other examination equipment will account for a greater number of papers, and it is believed that future submissions will also account for a higher proportion of PET-related papers than other equipment.