• Title/Summary/Keyword: Medical Instrument Design

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A Design of Heart Rate Feedback Controller for the Regimen of Physical Activity of the Patient with Coronary Artery Disease (관상동맥질환자의 운동요법을 위한 심장 박동궤환조절기의 설계)

  • 김진일;박종국
    • Journal of Biomedical Engineering Research
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    • v.3 no.1
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    • pp.23-30
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    • 1982
  • The regimen of physical activity of the patient with coronary artery disease requires that he should not overshoot the prescribed heart rate based on his age, health and fuctional status of the heart during his exercise. The step input of work load, however, involves a great danger of overshooting. The purpose of this study was to desigil a system that makes it passible for a subject to check the overshooting. This system shows on tile H.R-meter, the amplified and filtered heart-rate signal of the subject received by the photosensor on his earlobe, puts it in the lead coinpensational circuit where it is conpared with the reference input signal(=the presfribed heart rate). The output of the lead compensational circuit works the aull meter. By means of this null meter, the subject knows whether he is overshooting the prescribed heart rate or not. He can continue the natl meter needle at the'Zero'position through the control of the speed of pedaling of the bicycle ergometer, An experimental test, made on eight men and four women in healthy condition, showed that 91. 7% of them vlaintained the stable heart rate and that the overshooting of the desired heart rate did not exceed $\pm$2BPM. According to the result of this experiment, since the heart rate feedback controller makes it possible for the subject to take the prescribed exercise based not on the work load but on the heart rate which incidentally is inexpensive, it can be made use of as the instrument for the regimen of pflysical activity by the patient with coronary artery disease.

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Comparision of Body Image between DM Patients who used Insulin Pump and didn't use Insulin Pump (인슐린 펌프 착용 유무에 따른 당뇨병환자의 신체상 비교)

  • Lee, Myung-Hwa;Woo, Kyung-Mi;Kim, Kyung-Hee
    • The Korean Journal of Rehabilitation Nursing
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    • v.4 no.2
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    • pp.251-264
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    • 2001
  • The purpose of study was to compare body image between diabetes mellitus patients who used insulin pump therapy and didn't use insulin pump therapy. The study design was comparative survey study the subjects were 60 diabetes mellitus patients who used insulin pump therapy and 60 diabetes mellitus patients who didn't use insulin pump therapy at B hospital in Busan. The data were collected from 15th April to 20th August, 1998. The instrument used for this study were Osgood's body image scale. The collected data were analyzed frequency, percentage, $X^2$-test, mean, standard deviation, t-test, ANOVA, Scheffe test. The results were as follows 1. Demographical characteristics between diabetes mellitus patients who used insulin pump therapy and didn't use insulin pump therapy were no significant difference. 2. Characteristics related disease between diabetes mellitus patients who used insulin pump therapy and didn't use insulin pump therapy were significant difference in paticipation of D.M. meeting, no of paticipation of D.M. meeting. 3. Body inmage score of diabetes mellitus patients was $69.08{\pm}18.13$. In body image, diabetes mellitus patients who used insulin pump therapy were higher than that didn't use insulin pump therapy(t=1.964, P<.05) 4. In body image's each item, common-strange item, noble-humble item, competent-incompetent item, light-heavy item, diabetes mellitus patients who used insulin pump therapy were higher than diabetes mellitus patients who didn't use insulin pump therapy(P<.05). 5. In body image according to economic status, marital status, occupational status were significantly difference. 6. In body image according to causes of regular hospital visiting, paticipation of diabetes mellitus class were significantly difference. In conclusion, diabetes mellitus patients who used insulin pump therapy were more positive than diabetes mellitus patients who didn't use insulin pump therapy.

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Factors Affecting Radiation Protection Behaviors among Emergency Room Nurses (응급실 간호사의 방사선 방어행위 영향요인)

  • Lee, Su Jin;Boo, Sunjoo;Ahn, Jeong-Ah;You, Mi-Ae
    • Journal of Korean Critical Care Nursing
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    • v.13 no.1
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    • pp.15-26
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    • 2020
  • Purpose : This study aimed to examine factors affecting radiation protective behaviors among emergency room nurses by assessing knowledge, attitude, and environment for radiation protection. Methods : The study employed a cross-sectional design. Subjects were a convenience sample of 129 nurses working in emergency rooms of three general hospitals. Data were collected using self-report questionnaires and analyzed using t-test, ANOVA, Pearson correlation coefficients, and multiple regression. Results : The more the nurses received radiation safety education (t=2.26, p=.026), used protective gear (t=4.40, p<.001), and took health screenings (t=2.65, p=.009), the higher their levels of radiation protection behavior. There were significant relations between radiation protective behaviors and attitude (r=.27, p=.002), and radiation protective behaviors and environment for radiation protection (r=.55, p<.001). The factors affecting radiation protective behaviors were protective environment (β=.53, p<.001), protective attitude (β=.32, p<.001), and the use of protective gear (β=.24, p=.002). Conclusions : The government, hospital administrators, and radiation protection-related organization should adopt the following measures to protect emergency room nurses from radiation: research and development of shield instrument, medical examination for emergency room nurses, protocol development of radiation protection behaviors, extension of education chances of radiation protection, and encouraging the use of protective equipment.

Effect of Nursing Intervention of Mutual Goal Setting on Recovery of Mastectomy Patient (상호목표설정 간호중재가 유방절제술 환자의 수술 후 회복에 미치는 효과)

  • Jang Eun-Hee
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.8 no.2
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    • pp.172-188
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    • 2001
  • Purpose: The purpose of this research was to test the effectiveness of the nursing intervention, mutual goal setting, for patients who have had a mastectomy. Special reference was given to King's goal attainment theory and a theoretical framework for establishing an effective nursing strategy to enhance patient recovery is suggested. Method: This research employed a quasi-experimental design which consisted of pretest-posttest non-equivalent control and experimental groups. Data were collected from 37 patients who had a mastectomy and were hospitalized in the Department of Surgery of Y Medical Center from January 2001 to May 2001. The experimental group received the nursing intervention, mutual goal setting four times from the day before the operation to the fifth day after the operation while the control group received only routine nursing care. As postoperative recovery indicators, ROM of arm joints, arm circumference, pain, physical symptoms, oxygen saturation stress, anxiety and body image were measured. Result: The test results are as follows : 1) there were statistically significant differences between the experimental and control groups in extension and internal rotation of the shoulder Joint and flexion of the wrist joint. 2) there was no significant difference between the two groups in arm circumference. 3) there were no significant differences between the two groups in pain, physical symptoms, or oxygen saturation. 4) there were no significant differences between the two groups in stress, anxiety, or body Image. On the basis of research results, the following are recommended : 1) The effectiveness of nursing intervention in the acute recovery period as well as long term effects need to be investigated. 2) There is a need to develop an instrument to measure perception which facilitates goal attainment in the interactive setting between patients and nurses.

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Study on Factors Affecting Nurses' Experience of Non-Reporting Incidents (병원 간호사의 사건보고 불이행 경험여부에 영향을 미치는 요인)

  • Kim, Ki-Kyong;Song, Mal-Soon;Rhee, Kae-Sook;Hur, Hea-Kung
    • Journal of Korean Academy of Nursing Administration
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    • v.12 no.3
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    • pp.454-463
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    • 2006
  • Purpose: This study was designed to identify the factors affecting the nurses' experience of non-reporting adverse incidents in hospital. Methods: This study is a cross-sectional, descriptive survey design and nonrandom, convenience sampling. Study subjects were 392 clinical nurses, who have agreed to be the subject of this research. The measuring instrument of attitudes toward incident reporting was developed by the authors. The questionnaire which consisted of 17 items about worry about appraisal, the belief in improvement, the intention of reporting, and knowledge was measured by 5-point Likert-type scale. The estimate of internal consistency was alpha =.84. Analysis of data was done with use of mean, t-test, ANOVA, logistic regression with SPSS program. Results: Clinical nurses had experience of reporting incident (51.3%), non-reporting incident (76.5%). Statistically, significant differences were found between experiences group and non experience group in intention on reporting, belief on improvement, and worry about appraisal. Logistic regression analysis showed that the significant predictors were caused by report no-fault cases, belief on improvement, worry about appraisal. Conclusion: The result also indicated that, to improve the incident reporting and risk management, it might be necessary to give a belief that it results on improvement and remove concern about punishment through construction of no-blame system.

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The Study on the Development of Self Efficacy Expectation Promoting Program and It's Effect for Breast Self Examination (유방자가검진을 위한 효능기대 증진 프로그램의 개발 및 효과)

  • Jung, Myung-Ok;Tae, Young-Sook
    • Asian Oncology Nursing
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    • v.2 no.1
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    • pp.50-60
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    • 2002
  • Breast self-exam is easiest, safe and cost effective to be recommended as an important method for early detection of breast cancer. This experimental research with non-equal control design was to develop the efficacy expectation program for breast self-exam based on Bandura's self-efficacy information source. The study objects selected from two local churches in Busan. Twenty from S church were selected as a study group, twenty from D church as a control group. Efficacy expectation promoting program was based on Bandura's efficacy promoting source and was two hour lecture including slide, video tape, demonstration, pamphlet. After this, there were individual interviews with them and consultations through telephone f or verbal persuasion on the weekly basis between the first week and the fifth week. The effect from the experiment were measured on the first week after education and on the fifth week. Data from control group was collected during the period from Jan 11, 2 001 to Feb 15, 2001 and data from study group was collected during the period from Jan 12, 2001 to Feb 16, 2001. Measurement instrument for this study was developed by the author with the advice of specialist in order to measure self-efficacy and breast self-exam practice. Data analysis was done by using SPSS/10.0 PC program $with^2-$ test. t-test and ANCOVA. Proved results for hypothesis were as follows. 1) It was supported that "Study group educated by efficacy expectation promoting program has higher score in change rat e of self-efficacy than control group." (1 week after education F=18.395, p=.000 5 weeks after education F=28.972, p=.000) 2) It was supported that "Study group educated by efficacy expectation promoting program has higher score in change rate of exam practice than control group." (1 week after education F=37.984, p=.000 5 weeks after education F=28.972, p=.000) In conclusion, efficacy expectation promoting program for breast self-exam developed by this study may increase s elf-efficacy and breast self-exam practice.

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Comparision of Body Image between DM patients who used Insulin Pump and didn't use Insulin Pump (인슐린 펌프 착용 유무에 따른 당뇨병환자의 신체상 비교)

  • Lee, Myung-Hwa;Woo, Kyung-Mi;Kim, Kyung-Hee
    • The Korean Journal of Rehabilitation Nursing
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    • v.4 no.1
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    • pp.105-118
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    • 2001
  • The purpose of study was to compare body image between diabetes mellitus patients who used insulin pump therapy and didn't use insulin pump therapy. The study design was comparative survey study the subjects were 60 diabetes mellitus patients who used insulin pump therapy and 60 diabetes mellitus patients who didn't use insulin pump therapy at B hospital in Busan The data were collected from 15th April to 20th August, 1998. The instrument used for this study were Osgood's body image scale. The collected data were analyzed frequency, percentage, $X^2$-test, mean, standard deviation, t-test, ANOVA, Scheffe test. The results were as follows 1. Demographical characteristics between diabetes mellitus patients who used insulin pump therapy and didn't use insulin pump therapy were no significant difference. 2. Characteristics related disease between diabetes mellitus patients who used insulin pump therapy and didn't use insulin pump therapy were significant difference in paticipation of D.M. meeting, no of paticipation of D.M. meeting. 3. Body inmage score of diabetes mellitus patients was $69.08{\pm}18.13$. In body image, diabetes mellitus patients who used insulin pump therapy were higher than that didn't use insulin pump therapy(t=1.964, P<.05) 4. In body image's each item, common-strange item, noble-humble item, competent-incompetent item, light-heavy item, diabetes mellitus patients who used insulin pump therapy were higher than diabetes mellitus patients who didn't use insulin pump therapy(P<.05) 5. In body image according to economic status, marital status, occupational status were significantly difference. 6. In body image according to causes of regular hospital visiting, paticipation of diabetes mellitus class were significantly difference. In conclusion, diabetes mellitus patients who used insulin pump therapy were more positive than diabetes mellitus patients who didn't use insulin pump therapy.

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Job Stress and Musculoskeletal Disorder in Seoul City's School Foodservice Employees (서울시 학교급식시설 조리종사자의 직무 스트레스와 근골격계질환)

  • Lee, Saerom;Kim, KyooSang;Kim, Eun-A;Kim, Jihye;Kim, Dohyung
    • Korean Journal of Occupational Health Nursing
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    • v.23 no.4
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    • pp.245-253
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    • 2014
  • Purpose: School foodservice employees (SFEs) could be exposed to the risk of musculoskeletal disease and of job stress due to their job characteristics. This study was to evaluate the level of job stress and the prevalence of work-related musculoskeletal symptoms (WRMS) in Seoul city's SFEs, and to determine associations between job stress and WRMS. Methods: The study design was cross-sectional, and 975 SFEs were recruited. Self-administered questionnaire included the 'Korean occupational stress scale-short form' and the 'KOSHA GUIDE H-9-2012' instrument to evaluate the job stress and WRMS, respectively. SFEs' medians of job stress were compared to the reference values of published study in Korean workers. Results: The participants reported greater levels of job demand and physical environment than the general Korean population. WRMS were reported in 89.0% of participants at any body part, and 41.1% were presumed to need for medical intervention. High levels of job demand and of physical environment were significantly associated with WRMS. Conclusion: Subscales of job demand and physical environment were relatively high in SFEs and those were related to the occurrence of WRMS. To reduce the WRMS prevalence, a job stress management program focused on job demand and physical environment may be required.

Effects of a Sensory Stimulation on Weight Gain in Premature Infants (감각자극이 미숙아의 체중증가에 미치는 영향)

  • Lee Kun Ja;Cho Kyoul Ja
    • Child Health Nursing Research
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    • v.5 no.3
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    • pp.250-261
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    • 1999
  • This study has been conducted on the nonequivalent control group Pretest-posttest design in quasi experimental basis and newly born premature infants from intensive care unit of G Medical University Hospital in Inchon Metropolitan were selected in two groups of 21 infants each. The first group for experimental and the other for control. Data has been collected form October 30, 1997 to August 29, 1998. For the experimental group tactile and kinesthetic stimulation was applied 2 times a day for 10 days(10:00~ll:00 hours in the morning and 17:00~18:00 in the afternoon). As, a weight weighing instrument, electronic indicator scale(Cas Co. korea) was used. Collected data were analyzed with the SAS program using x²-test, student t-test, repeated measures ANOVA, Pearson correlated coefficient and Stepwise multiple regression. The result were as follow. 1. As for the daily weight gain, the experimental group showed first change in weight and this group also showed higher weight in the average weight than the control group. Statistically, however. there was no significant factor between the two groups. 2. In the correlation between general characteristics and weight gain, gestation Period. apgar score, admission Period before study, N.P.O. period after birth, recovery Period to birth weight showed statistical significance negative correlation with weight gam in the experimental group than control group. 3. In the factor with affected the weight gain by general characteristics showed recovery period to birth weight and head circumference in the experimental group, control group showed recovery period to birth weight, N. P. O. period after birth. admission period before study, feeding amount, weight of study. In conclusion. the sensory stimulation in this study showed a Positive aspect through there was no statistical significance in the weight gam. Tn the correlation of general characteristics and weight gam showed statistical significance negative correlation The main factor which affected the weight gain by general characteristics showed recover period to birth weight.

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Psychosocial Assessment and Related Factors for Kidney Transplantation Candidates in South Korea: A Descriptive Correlational Study (한국 신장이식 대기자의 심리사회적 평가 및 영향 요인)

  • Chong, Hye Jin
    • Journal of Korean Biological Nursing Science
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    • v.21 no.4
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    • pp.249-258
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    • 2019
  • Purpose: The purpose of this study was to assess the psychosocial status of candidates for deceased donor kidney transplantation (DDKT) in South Korea and identify factors associated with high-risk psychosocial status. Methods: The descriptive cross-sectional design included application of a standardized transplantation-specific assessment tool, the Psychosocial Assessment Candidacy Transplantation (PACT) instrument, and review of candidates' medical records. A total of 157 patients awaiting DDKT were recruited from a Korean organ transplantation center. The collected data were analyzed using descriptive statistics and binary logistic regression. Candidates were divided into high- and low-psychosocial risk groups using 3 as the cutoff point of PACT. Results: The mean score for the PACT final rating was 2.10, and the lowest average subscale score was 2.30 for understanding the processes of transplantation and follow up. Poor physical candidacy, especially due to comorbidities, and older age were associated with high psychosocial risk. Conclusion: The results of this study showed that the psychosocial status of Korean DDKT candidates was problematic. Development of systematic management programs for effective clinical strategies in the care of candidates is crucial to maintain their desirable psychosocial status in case of an emergency DDKT operation and improve post-transplantation outcomes. Continuous education is absolutely necessary to enhance understanding of the transplantation process for high-risk psychosocial candidates. Additionally, nurses and transplantation professionals should screen candidates with high-risk psychosocial status early in the process using transplantation-specific assessment tools and provide intensive interventions, particularly for poor physical candidacy patients and older candidates.