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Anaesthesia Jan 1985Anaesthetic equipment was studied to determine whether the accuracy was improved and failure rate decreased by routine maintenance and calibration by a biomedical...
Anaesthetic equipment was studied to determine whether the accuracy was improved and failure rate decreased by routine maintenance and calibration by a biomedical technician. Each piece was evaluated, and then repaired and rechecked at intervals by the same technician. Equipment failures were divided into three types: first, equipment that was completely nonfunctional; second, equipment that was functional but inaccurate; and third, equipment that was functional and accurate but needed minor repairs. The percentage of equipment failures in each group was compared on initial evaluation and after 6 months. Of the 311 pieces of equipment, 40% needed repair at the time of the initial survey; 80% was nonfunctional, and 18% was functional but inaccurate. After six months on a maintenance schedule, only 15% of the equipment needed repair, 3% was nonfunctional, and 6% was functional but inaccurate. The difference between the total percentage of equipment failure initially and after six months was statistically significant. After a regular maintenance, calibration, and checkout schedule by a biomedical technician was instituted, there was a significant improvement in the accuracy of the equipment and a reduction in the percentage of equipment needing repair.
Topics: Anesthesiology; Calibration; Chicago; Equipment Failure; Maintenance and Engineering, Hospital; Time Factors
PubMed: 3970340
DOI: 10.1111/j.1365-2044.1985.tb10505.x -
Medical & Biological Engineering &... Oct 2019Maintenance is a crucial subject in medical equipment life cycle management. Evidence-based maintenance consists of the continuous performance monitoring of equipment,...
Maintenance is a crucial subject in medical equipment life cycle management. Evidence-based maintenance consists of the continuous performance monitoring of equipment, starting from the evidence-the current state in terms of failure history-and improvement of its effectiveness by making the required changes. This process is very important for optimizing the use and allocation of the available resources by clinical engineering departments. Medical equipment maintenance is composed of two basic activities: scheduled maintenance and corrective maintenance. Both are needed for the management of the entire set of medical equipment in a hospital. Because the classification of maintenance service work orders reveals specific issues related to frequent problems and failures, specific codes have been applied to classify the corrective and scheduled maintenance work orders at Careggi University Hospital (Florence, Italy). In this study, a novel set of key performance indicators is also proposed for evaluating medical equipment maintenance performance. The purpose of this research is to combine these two evidence-based methods to assess every aspect of the maintenance process and provide an objective and standardized approach that will support and enhance clinical engineering activities. Starting from the evidence (i.e. failures), the results show that the combination of these two methods can provide a periodical cross-analysis of maintenance performance that indicates the most appropriate procedures. Graphical abstract The left side shows a block diagram of the process needed to calculate the proposed set of KPIs, starting from technological, organizational and financial data. On the upper right it is shown an example of scheduled maintenance analysis for a specific class of equipment (legend in the article body). The bottom right part shows how the KPIs can be implemented in a business intelligence dashboard.
Topics: Biomedical Engineering; Equipment and Supplies; Maintenance; Telemetry
PubMed: 31399897
DOI: 10.1007/s11517-019-02021-x -
Annals of Global Health Apr 2020Engineering technology plays a pivotal role in the delivery of health care in under-resourced countries by providing an infrastructure to improve patient outcomes....
Engineering technology plays a pivotal role in the delivery of health care in under-resourced countries by providing an infrastructure to improve patient outcomes. However, sustainability of these technologies is difficult in these settings oftentimes due to limited resources or training. The framework presented in this editorial focuses on establishing medical and laboratory equipment sustainability in developing countries and is comprised of four steps: 1) establishing reliable in-country relationships with stakeholders, 2) identifying needs for sustainable solutions locally, 3) exploring potential solutions and assessing their effort-to-impact ratios, and 4) working with strategic partners to implement solutions with clear performance metrics. By focusing on the sustainability of donated equipment instead of the equipment itself, this method presented distinguishes itself from other philanthropic endeavors in the field by seeking to establish preventive maintenance habits that can impact clinical outcomes of a community long term. Application of this methodology is reported in the Original Research Article "A Low-Cost Humidity Control System to Protect Microscopes in a Tropical Climate" by Asp et. al.
Topics: Developing Countries; Equipment and Supplies; Equipment and Supplies Utilization; Health Resources; Humans; Maintenance; Needs Assessment; Organizations, Nonprofit; Program Evaluation; Stakeholder Participation; Teaching
PubMed: 32322537
DOI: 10.5334/aogh.2584 -
California Medicine May 1960Although acute epiglottitis is not a rare disease and may be very severe or fatal, it is one not familiar, as it should be, to all physicians dealing with children....
Although acute epiglottitis is not a rare disease and may be very severe or fatal, it is one not familiar, as it should be, to all physicians dealing with children. Diagnosis may be confirmed clinically by direct or indirect examination of the epiglottis. Vaporized cool water is preferable to steam for reducing the swelling of mucosal tissues that impairs breathing. Chloramphenicol is the drug of choice, as the majority of cases of acute epiglottitis are due to H. Influenzae. Tracheotomy must be carried out if necessary to maintain an airway.
Topics: Acute Disease; Child; Chloramphenicol; Choice Behavior; Disease; Epiglottis; Epiglottitis; Humans; Influenza, Human; Maintenance; Nebulizers and Vaporizers; Physicians; Rare Diseases; Respiration; Steam; Tracheotomy; Water
PubMed: 13849026
DOI: No ID Found -
PloS One 2023Cracks in concrete tunnel linings are inevitable during service life. It is necessary to keep abreast of the cracking condition of the lining and formulate reasonable...
Cracks in concrete tunnel linings are inevitable during service life. It is necessary to keep abreast of the cracking condition of the lining and formulate reasonable inspection and maintenance measures to ensure operational safety. Considering the influence of train loads on the safety and service performance of cracked linings, the expansion process of lining cracks and the maintenance strategy of tunnels during the service period was investigated. The impact of detection probability and maintenance measures on the service life of tunnel lining and the cost of detection and maintenance of cracked lining in the whole life cycle was analyzed; the optimization calculation model of tunnel lining crack detection and maintenance strategy based on genetic algorithm was established with the multi-objective optimization function of maximizing the service life of detection and maintenance and minimizing the total cost of detection and maintenance of fatigue cracks. The optimization analysis of lining crack expansion, detection, and maintenance was carried out for an operational railroad tunnel. Finally, an optimization analysis of lining crack expansion and maintenance was carried out in a railway tunnel. The results show that the stress intensity factor at the tip of the lining cracks is the same as the train load waveform; the magnitude of the stress intensity factor approximately satisfies the exponential function relationship with the depth of cracks; the fatigue service life of cracked lining is positively correlated with the cost of inspection and maintenance; the adoption of the necessary maintenance and the increase in the number of inspections and maintenance have a better economy while meeting the expectation of the service life. According to the Pareto solution set, the management can formulate the inspection and maintenance strategy based on the tunnel's expected life and maintenance budget.
Topics: Humans; Budgets; Fatigue; Probability; Railroads
PubMed: 37624783
DOI: 10.1371/journal.pone.0290533 -
Proceedings of the Royal Society of... Nov 1967
Topics: Adolescent; Adult; Economics, Medical; Hospital Design and Construction; Humans; Life Expectancy; Maintenance and Engineering, Hospital; Middle Aged; Renal Dialysis; Uremia
PubMed: 6065228
DOI: No ID Found -
Heliyon Apr 2023Building flaws are one of the main aspects of building problems that need to be carefully considered. Besides the high demand for construction projects in Ethiopia, the...
Building flaws are one of the main aspects of building problems that need to be carefully considered. Besides the high demand for construction projects in Ethiopia, the problems of defective buildings and maintenance issues were so prevalent. According to the researchers' field survey, Mettu town's public buildings have suffered from major building defects and deterioration, and neglect of maintenance practices. This research aimed to assess building construction defects and maintenance practices in Mettu building projects. A case study and questionnaire survey were utilized for data collection. A Case study was conducted on a randomly selected nine public building projects in Mettu Town using site observation and formal checklists. Whereas, a questionnaire method was used to address the study objectives based on respondents' perspectives using ordinal scales of Likert's. The Spearman rank correlation coefficient, mean score, and weighted average values were utilized for data analysis using Microsoft Excel spreadsheet and SPSS version 20 tools. The study revealed that non-structural cracks were found the top first-ranked building defect. Shortage of budget, inadequate maintenance standards, and Poor maintenance cultures were the top-ranked building maintenance factors. Project delay, High maintenance cost, and diminishing reputation were the top-ranked impacts of building defects. Periodic and regular construction supervision and proper and periodic maintenance were the top measures to minimize building defects.
PubMed: 37089353
DOI: 10.1016/j.heliyon.2023.e15052 -
Materials Today. Proceedings 2021This view point focuses on increasing and retaining Indian MRO market within India by improving the maintenance standard through EASA approved maintenance organizations...
This view point focuses on increasing and retaining Indian MRO market within India by improving the maintenance standard through EASA approved maintenance organizations and by change in existing investment approach. An overview on MRO market demand and the market retention with respect to outsourced services during pre covid-19 is detailed. The existing standard of maintenance with respect to global standards was compared to identify the well-focused training need. Need of EASA framework implementation for maintenance training to improve existing training standard are detailed. Focus to improve leasing and investment approaches in MRO are discussed to retain and increase the MRO market. Effective business retention and focused growth to become a global MRO hub can be achieved by adopting EASA regulatory framework for maintenance training and MRO, supported by the developments in aircraft leasing sector. Addressing the EASA training need and leasing opportunities can be helpful in convincing authorities and market leaders to realize the potential of India to be a global MRO hub. This view point can be thought provoking in retaining the Indian MRO market by addressing the need of EASA standardization in maintenance training with respect to improve the maintenance quality and to attract investment and leasing. Ways of increasing the MRO business through change in existing aircraft leasing approach and need of EASA framework in maintenance training and standardization are provided to convince authorities and market leaders to realize that India can become future global MRO hub.
PubMed: 32837923
DOI: 10.1016/j.matpr.2020.07.451 -
Sensors (Basel, Switzerland) Apr 2022Predictive Maintenance (PdM) is one of the most important applications of advanced data science in Industry 4.0, aiming to facilitate manufacturing processes. To build...
Predictive Maintenance (PdM) is one of the most important applications of advanced data science in Industry 4.0, aiming to facilitate manufacturing processes. To build PdM models, sufficient data, such as condition monitoring and maintenance data of the industrial application, are required. However, collecting maintenance data is complex and challenging as it requires human involvement and expertise. Due to time constraints, motivating workers to provide comprehensive labeled data is very challenging, and thus maintenance data are mostly incomplete or even completely missing. In addition to these aspects, a lot of condition monitoring data-sets exist, but only very few labeled small maintenance data-sets can be found. Hence, our proposed solution can provide additional labels and offer new research possibilities for these data-sets. To address this challenge, we introduce MEDEP, a novel maintenance event detection framework based on the Pruned Exact Linear Time (PELT) approach, promising a low false-positive (FP) rate and high accuracy results in general. MEDEP could help to automatically detect performed maintenance events from the deviations in the condition monitoring data. A heuristic method is proposed as an extension to the PELT approach consisting of the following two steps: (1) mean threshold for multivariate time series and (2) distribution threshold analysis based on the complexity-invariant metric. We validate and compare MEDEP on the Microsoft Azure Predictive Maintenance data-set and data from a real-world use case in the welding industry. The experimental outcomes of the proposed approach resulted in a superior performance with an FP rate of around 10% on average and high sensitivity and accuracy results.
Topics: Humans; Industry; Time Factors
PubMed: 35458821
DOI: 10.3390/s22082837 -
American Family Physician Sep 2018
Review
Topics: Adult; Cognitive Behavioral Therapy; Comparative Effectiveness Research; Evidence-Based Practice; Humans; Psychotropic Drugs; Risk Factors; Sleep Aids, Pharmaceutical; Sleep Initiation and Maintenance Disorders; Treatment Outcome
PubMed: 30216028
DOI: No ID Found