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Artykuły w czasopismach na temat "Ergonomic instruments"
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Herman, B., A. Devreker, F. Richer, A. Hassan Zahraee i J. Szewczyk. "An articulated handle to improve the ergonomic performance of robotic dextrous instruments for laparoscopic surgery". Mechanical Sciences 5, nr 1 (23.05.2014): 21–28. http://dx.doi.org/10.5194/ms-5-21-2014.
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Abstract. Hand-held robotic instruments with dextrous end-effectors offer increased accessibility and gesture precision in minimally invasive laparoscopic surgery. They combine advantages of both intuitive but large, complex, and expensive telesurgery systems, and much cheaper but less user-friendly steerable mechanical instruments. However, the ergonomics of such instruments still needs to be improved in order to decrease surgeon discomfort. Based on the results of former experimental studies, a handle connected to the instrument shaft through a lockable ball joint was designed. An experimental assessment of ergonomic and gesture performance was performed on a custom-made virtual reality simulator. Results show that this solution improves ergonomics, demanding less wrist flexion and deviation and elbow elevation, while providing gesture performance similar to a robotic dextrous instrument with standard pistol-like handle configuration.
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Sánchez-Margallo, Juan A., Alfonso González González, Lorenzo García Moruno, J. Carlos Gómez-Blanco, J. Blas Pagador i Francisco M. Sánchez-Margallo. "Comparative Study of the Use of Different Sizes of an Ergonomic Instrument Handle for Laparoscopic Surgery". Applied Sciences 10, nr 4 (24.02.2020): 1526. http://dx.doi.org/10.3390/app10041526.
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Previous studies have shown that the handle design of laparoscopic instruments is crucial to surgical performance and surgeon’s ergonomics. In this study, four different sizes of an ergonomic laparoscopic handle design were tested in a blind and randomized fashion with twelve surgeons. They performed three laparoscopic tasks in order to analyze the influence of handle size. Execution time, wrist posture, and finger and palm pressure were evaluated during the performance of each task. The results show a significant reduction in the time required to complete the eye-manual coordination task using the appropriate handle. The incorrectly sized handle resulted in a rise in palm pressure and a reduction in the force exerted by the thumb during the transfer task. In the hand-eye coordination task, the use of the right handle size led to an increase in middle finger pressure. In general, surgeons had an ergonomically adequate wrist flexion in all tasks and an acceptable radio-ulnar deviation during the transfer task using the ergonomic instrument handle. Surgeons found it comfortable the use of the ergonomic handle. Therefore, the use of an appropriately sized instrument handle allows surgeons to improve ergonomics and surgical performance during the laparoscopic practice.
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Manchester, Ralph A. "Musical Instrument Ergonomics". Medical Problems of Performing Artists 21, nr 4 (1.12.2006): 157–58. http://dx.doi.org/10.21091/mppa.2006.4033.
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David Nabb's interview of Maarten Visser on page 159 of this issue and Brenda Wristen's article on the 7/8ths keyboard from the March issue are two recent examples of articles on musical instrument ergonomics. Ergonomics, literally the study of work, is defined as "the applied science of equipment design intended to maximize productivity by reducing operator fatigue and discomfort." When I was an undergraduate student at Tufts University in the 1970s, my engineering roommate studied "human factors engineering" (but never applied it to music, as far as I know). In 2006, a Google search for "ergonomic musical instruments" yields over 1 million websites; a search for "musical instruments" yields 16 million websites.
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Dominguez-Alfaro, Denisse, Ismael Mendoza-Muñoz, Carlos Raúl Navarro-González, Mildrend Ivett Montoya-Reyes, Samantha E. Cruz-Sotelo i Olivia Yessenia Vargas-Bernal. "ErgoVSM: A new tool that integrates ergonomics and productivity". Journal of Industrial Engineering and Management 14, nr 3 (19.07.2021): 552. http://dx.doi.org/10.3926/jiem.3507.
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Purpose: Identifying possible ergonomic risks generated by the implementation of Lean Manufacturing in organizations. Shows a need to integrate ergonomics and productivity indicators in process analysis, thus giving place to the ErgoVSM methodology, which is VSM (Value Stream Mapping) complemented with ergonomic analysis.Design/methodology/approach: This literature review aims to refer to the methodology and instruments used for its application, as well as the benefits obtained and the challenges that arise when applying it.Findings: This article presents a review of 26 publications regarding the ErgoVSM methodology. The ErgoVSM is mainly based on the VSM methodology developed by Rother & Shook that is most applied in the healthcare sector with ergonomic analysis instruments that focus on the physical and psychosocial factors of the workers.Originality/value: The review revealed that when using ErgoVSM, processes can be improved from the ergonomic perspective without negatively affecting productivity. Even though ErgoVSM requires more time for application compared to VSM, the value of the ergonomic data for decision making in process changes justifies the extra time.
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Karimian, Faramarz. "Ergonomics for the Surgeon". International Journal of Surgery & Surgical Techniques 6, nr 2 (2022): 1–3. http://dx.doi.org/10.23880/ijsst-16000168.
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As a surgeon, few of us know much about ergonomics. However, all of us use ergonomics by instinct. How is that then? When we try to put everything at the “right” place in a surgical field, position the patient in a way that makes working easier for us, and perform fine maneuvers with our instruments in deep cavities with limited space we are using ergonomics; or trying to be ergonomic. Ergonomics is a rapidly growing science and is an essential part in every industrial product; be it the handle of a laparoscopic tool or a sophisticated surgical robot. We should feedback the Industry about what is more ergonomic for us, or what we “expect” from a product. If such a mutual communication develops, then we will be more satisfied by technical innovations in instruments. Ergonomics also applies to technical capabilities of humans; what makes some one better than others at handwork. Generally, this is the matter of inherent talent, which is diverse. However, all of surgeons need to be best at handwork during surgery. This is why we should learn more about ergonomics.
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Gnaneswaran, V., S. Herring, Wei Hua Ge, P. Castillejos i R. R. Bishu. "Ergonomic Evaluation of Writing Instruments". Proceedings of the Human Factors and Ergonomics Society Annual Meeting 51, nr 17 (październik 2007): 1058–60. http://dx.doi.org/10.1177/154193120705101713.
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The objective of this study was to evaluate, using ergonomic principles, a number of interesting looking instruments. A three phase evaluation procedure, comprising a paired comparison procedure, subjective evaluation and objective assessment was followed. A total of 8 pens were evaluated using 30 students from the University of Nebraska-Lincoln. Results showed that such a three phase methodology can be effective in evaluating products. The results also have ramifications for designers and users of pens.
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Dimitrakakis, Emmanouil, Holly Aylmore, Lukas Lindenroth, George Dwyer, Joshua Carmichael, Danyal Z. Khan, Neil L. Dorward, Hani J. Marcus i Danail Stoyanov. "Robotic Handle Prototypes for Endoscopic Endonasal Skull Base Surgery: Pre-clinical Randomised Controlled Trial of Performance and Ergonomics". Annals of Biomedical Engineering 50, nr 5 (8.03.2022): 549–63. http://dx.doi.org/10.1007/s10439-022-02942-z.
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AbstractEndoscopic endonasal skull base surgery is a promising alternative to transcranial approaches. However, standard instruments lack articulation, and thus, could benefit from robotic technologies. The aim of this study was to develop an ergonomic handle for a handheld robotic instrument intended to enhance this procedure. Two different prototypes were developed based on ergonomic guidelines within the literature. The first is a forearm-mounted handle that maps the surgeon’s wrist degrees-of-freedom to that of the robotic end-effector; the second is a joystick-and-trigger handle with a rotating body that places the joystick to the position most comfortable for the surgeon. These handles were incorporated into a custom-designed surgical virtual simulator and were assessed for their performance and ergonomics when compared with a standard neurosurgical grasper. The virtual task was performed by nine novices with all three devices as part of a randomised crossover user-study. Their performance and ergonomics were evaluated both subjectively by themselves and objectively by a validated observational checklist. Both handles outperformed the standard instrument with the rotating joystick-body handle offering the most substantial improvement in terms of balance between performance and ergonomics. Thus, it is deemed the more suitable device to drive instrumentation for endoscopic endonasal skull base surgery.
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Shaik, Abdul Rahim, B. H. Sripathi Rao, Akhter Husain i Juliana Linnette D’Sa. "Effectiveness of Ergonomics Awareness Training Programme in Minimizing the Ergonomic Risk Factors in Dental Surgeons". Advanced Engineering Forum 10 (grudzień 2013): 148–53. http://dx.doi.org/10.4028/www.scientific.net/aef.10.148.
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The professional work usually carried out by the dental surgeons results in developing ergonomic risk factors such as forward bends and rotated positions of the body while handling variety of tools. The successful application of ergonomics assures high productivity, avoidance of illnesses and injuries and increased satisfaction among dental surgeons. The study was carried out to find the effectiveness of ergonomics awareness training programme in minimizing the ergonomic risk factors in dental surgeons. For this purpose, one hundred and thirty dental surgeons among post graduate dental students, faculty members and private practitioners from in and around Mangalore city, Southern Karnataka District, India, with more than one year of experience were selected by using non-probability convenience sampling method. A six week of ergonomics awareness training programme for selected dental surgeons was developed and imparted during the training. In order to determine the effectiveness of ergonomics awareness training programme, a pre-tested structured dental work station observation check list was used. The result indicates that, mean post-test scores of manual material handling (0.23), physical energy demands (0.18), instruments (0.00), environment (0.00) and other musculoskeletal demands (1.35) were lower than the mean pre-test scores i.e., 1.98, 1.95, 0.14, 0.01 and 7.53 respectively. Based on the results of the study we conclude that, ergonomics awareness training programme will be effective in minimizing the ergonomic risk factors in dental surgeons. Key words: Ergonomics awareness; Ergonomic risk factors; Dental surgeons; Work-related musculoskeletal disorders (WMSDs)
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Van Veelen, A., R. H. M. Goossens, J. J. Jakimowicz, C. J. Snijders, J. J. Jacobs i D. W. Meije. "New ergonomic guidelines for laparoscopic instruments". Minimally Invasive Therapy & Allied Technologies 10, nr 3 (styczeń 2001): 163–67. http://dx.doi.org/10.1080/136457001753192286.
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Lietz, Janna, Nazan Ulusoy i Albert Nienhaus. "Prevention of Musculoskeletal Diseases and Pain among Dental Professionals through Ergonomic Interventions: A Systematic Literature Review". International Journal of Environmental Research and Public Health 17, nr 10 (16.05.2020): 3482. http://dx.doi.org/10.3390/ijerph17103482.
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Musculoskeletal diseases and pain (MSDs) are prevalent among dental professionals. They cause a growing inability to work and premature leaving of the occupation. Thus, the objective of this review was to summarize the evidence of ergonomic interventions for the prevention of MSDs among dental professionals. This review was conducted using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The literature search was carried out in May 2018, with an update in April 2019. Scientific databases such as MEDLINE, CINAHL, PubMed and Web of Science as well as reference lists of the included studies were used. Relevant data were extracted from the studies and summarized. The quality assessment was performed using a validated standardized instrument. Eleven studies were included in this review, of which four are of high quality. Eight studies focused on setting prevention strategies. Of those, in five studies, magnification loupes or prismatic spectacles were the subject of ergonomic interventions. Further subjects were the dental chair (n = 2) and dental instruments (n = 1). Three studies evaluated ergonomic training. In all studies, the ergonomic interventions had positive effects on the study outcome. Several ergonomic interventions to prevent MSDs among dental professionals were found to exert a positive effect on the prevalence of MSDs or working posture. This systematic review adds current evidence for the use of prismatic spectacles in order to prevent MSDs among dental professionals. Further intervention studies about the role of ergonomics for the prevention of MSDs among dental professionals are warranted.
Rozprawy doktorskie na temat "Ergonomic instruments"
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Souza, Viviani Cintra de. "Uso de instrumentos de avaliação de riscos ergonômicos: teoria e prática". Universidade Federal de São Carlos, 2011. https://repositorio.ufscar.br/handle/ufscar/3688.
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Previous issue date: 2011-08-26In recent years, in Brazil, companies have shown a growing interest in developing actions to address ergonomic problems in working conditions related to health and productivity. This interest is due in part to the compliance requirements of working conditions to the legislation of the Ministry of Labor and Employment. To adapt working conditions to the legal conditions recommended the need arises to measure the conditioning factors of work activities, and consequently increases the demand for use of instruments to assess the ergonomic risks. The study aims to determine the contribution of risk assessment tools in the analysis of ergonomic conditions of work activity in steps of Ergonomic Work Analysis and use of these instruments in Brazil, by consulting firms and research institutions and extension in the area ergonomics in an attempt to establish the relationship between the objectives and content of the instruments and methods of analysis used in practice. The survey was conducted through a literature review, to determine the instruments and through a questionnaire, seeking, knowing the tools most used by Brazilian organizations to ergonomics. In the questionnaire some questions were addressed in order to know the work of organizations of ergonomics in Brazil: issues relating to training for professionals working with ergonomics, the main intervention activities and steps that develop, the factors related to the job consider during the intervention, the methodologies we use as reference and the instruments they use to ergonomic risk assessments. According to the systematic knowledge and accumulated in the literature on the use of tools to verify specific aspects of man's relationship with their work environment, it was observed that most concentrate their goals in the evaluation of factors related to the physical dimensions of the work. The research results allow us to conclude that the instruments are not sufficient to analyze the work during an ergonomic intervention. Thus, the formation of analysts with their different views and
Nos últimos anos, no Brasil, as empresas têm demonstrado um crescente interesse em desenvolver ações ergonômicas a fim de enfrentar problemas nas condições de trabalho relacionados à saúde e produtividade. Esse interesse se deve, em parte, às exigências de conformidade das condições de trabalho à legislação do Ministério do Trabalho e Emprego. Para adequar as condições de trabalho às condições legais recomendadas, surge a necessidade de mensurar os fatores condicionantes das atividades de trabalho, aumentando, consequentemente, a demanda por utilização de instrumentos para avaliar os riscos ergonômicos. O presente estudo tem como objetivo verificar a contribuição de instrumentos de avaliação de riscos ergonômicos na análise dos condicionantes da atividade de trabalho nas etapas da Análise Ergonômica do Trabalho e a utilização desses instrumentos no Brasil, por empresas de consultoria e instituições de pesquisa e extensão na área de ergonomia, na tentativa de estabelecer a relação entre os objetivos e conteúdos dos instrumentos e os métodos de análise utilizados na prática. A pesquisa foi realizada por meio de levantamento bibliográfico, visando conhecer os instrumentos, e por meio de questionário, buscando conhecer os instrumentos mais utilizados por organizações brasileiras de ergonomia. No questionário aplicado, algumas questões foram abordadas com o objetivo de conhecer o trabalho das organizações de ergonomia no Brasil: questões relacionadas à formação dos profissionais que trabalham com ergonomia, as principais atividades de intervenção e as etapas que as desenvolvem, fatores relacionados ao trabalho considerados durante a intervenção, as metodologias utilizadas como referência e os instrumentos utilizados para avaliações de risco ergonômico. De acordo com o conhecimento sistematizado e acumulado na literatura sobre a utilização de instrumentos para verificar aspectos específicos da relação do homem com seu ambiente de trabalho, observou-se que a grande maioria concentra seus objetivos na avaliação de fatores referentes às dimensões físicas do trabalho. Os resultados encontrados na pesquisa permitem concluir que os instrumentos não são suficientes para analisar o trabalho durante uma intervenção ergonômica. Desse modo, a formação dos analistas com seus diferentes pontos de vista e as respectivas bases conceituais de formação são os elementos que darão conta da realização do trabalho.
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RAPOSO, MYRTES. "CME - THE HOSPITAL HART-BEAT: AN ERGONOMIC INVESTIGATION IN THE MAIN STERILIZED INSTRUMENTS OFFICE INSIDE HEALTHY PUBLIC UNITS". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=10348@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROO objetivo desta pesquisa é apresentar os resultados de uma investigação ergonômica realizada em setores de reprocessamento de materiais médico-hospitalares, em dois hospitais distintos, fazendo um estudo comparativo da organização da produção, dos parâmetros de qualidade e da realidade imposta em tais unidades de saúde, considerando seus diferentes aspectos organizacionais.
The objective of this research is to present the results from accomplished in medical materials reprocessing sectors of two different hospitals, making a comparative study of production organization, the quality parameters and reality imposed in such health units, considering their different organizational aspects.
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Carvalho, Laísa Cristina. "Análise ergonômica do trabalho na execução de armaduras". Universidade Federal de São Carlos, 2016. https://repositorio.ufscar.br/handle/ufscar/8165.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Financiadora de Estudos e Projetos (FINEP)
Civil construction is one of the activities that generates most jobs in the country, owning handmade construction methods and with few technological innovations. It notes that the number of workers in that area is significant because of the diversity of existing activities in a building. In the case of the reinforcing steel service, tasks are performed manually and request different degrees of effort, which when applied recursively, with tools and equipment unsuitable and inadequate workplace, may cause damage to the health and comfort of workers. In this context, this study aims to evaluate the ergonomic working conditions of the reinforcing steel service. Therefore, we used the methodology of the Ergonomic Assessment Method for Task Analysis (AET), aided by three ergonomic tools: Ergonomic Workplace Analysis (EWA), the Metabolic Equivalent of Task (MET) and the Occupational Repetitive Actions (OCRA). Considering these factors analyzed, with photographic records, interviews and site visiting to watch the worker during his tasks, the actual conditions of the job were studied, trying to analyze everyday work situations, health and safety of workers and featuring, thus, the workplace conditions during reinforcing steel service. The results corroborate the existence of working inadequate postures while performing the task. According to ergonomic tool EWA the most critical ergonomic factor detected was related to Working Postures and Movement, followed by Load Lifting factor. Among the activities analyzed using this ergonomic analysis instrument, the one which presented more critic was related to the assembly of reinforcement for beams. According to the ergonomic analysis instrument MET, tasks with higher energy expenditure and metabolic expenditure were related to Receiving and Storage of steel bars. Among the operation inherent to each task of reinforcement service, there is the tie bars with annealed wire. Finally, it is concluded that the index of exposure OCRA for the activity of tie bars with annealed wire presents imminent risk to all analyzed situations.
A construção civil é uma das atividades que mais gera empregos no país, possuindo métodos construtivos tradicionais e com poucas inovações tecnológicas. Cabe ressaltar que a quantidade de trabalhadores nessa área é bastante significativa, devido à diversidade de atividades existentes em uma edificação. No caso do serviço de armação, as tarefas são executadas, em sua maioria, manualmente e solicitam diferentes graus de esforços que, quando aplicados de modo recorrente, com ferramentas e equipamentos impróprios e postos de trabalho inadequados, podem causar danos à saúde e ao conforto do trabalhador. Neste contexto, este trabalho tem por objetivo avaliar as condições ergonômicas do trabalho no serviço de armação. Para tanto, empregou-se a metodologia da Análise Ergonômica do Trabalho (AET), auxiliada por três instrumentos de análise ergonômica: Ergonomic Workplace Analysis (EWA), o Equivalente Metabólico (MET) e o Occupational Repetitive Actions (OCRA). Considerando tais fatores analisados, com registros fotográficos, entrevistas e acompanhamentos, foram estudadas as reais condições do posto de trabalho, buscando analisar as situações cotidianas de trabalho, saúde e segurança dos trabalhadores e caracterizando, assim, as condições do posto de trabalho durante o serviço de armação. Os resultados encontrados corroboram a existência de posturas inadequadas de trabalho durante a execução da tarefa. De acordo com o instrumento ergonômico EWA o fator ergonômico mais crítico detectado foi relacionado a Posturas de Trabalho e Movimentos, seguido pelo fator Levantamento de Carga. Dentre as atividades analisadas utilizando este instrumento ergonômico, a que se apresentou mais crítica foi a relacionada à montagem das armaduras para as vigas. De acordo com o instrumento de análise ergonômica MET, as tarefas com maior gasto energético ou gasto metabólico foram as relacionadas ao Recebimento e Estocagem das barras de aço. Entre as operações inerentes a cada tarefa do serviço de armação, destaca-se o amarre das barras com arame recozido. Finalmente, conclui-se que o índice de exposição OCRA para a atividade de amarre das barras com arame recozido apresenta risco iminente para todas as situações analisadas.
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Benoit-Gonin, Léonard. "Contribuições da abordagem instrumental para o estudo da atividade de operação em salas de controle : da interface ao coletivo". Thesis, Bordeaux 2, 2011. http://www.theses.fr/2011BOR21808/document.
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Cette thèse étudie l’activité d’opération en salle de contrôle, du point de vue de l’usage des technologies de présentation d’informations. L’évolution de ces technologies, principalement marquée par la réduction de la surface d’affichage d’informations opérationnelles à travers de la substitution des anciens tableaux synoptiques par les écrans d’ordinateur, a provoqué des transformations importantes dans l’activité des opérateurs tels que la perte de la vision globale et une croissante exigence de la mémoire à court terme. Toutefois, à l’heure actuelle, de nouvelles technologies – comme les videowalls, par exemple - permettent l’affichage de données opérationnelles en grandes surfaces, ouvrant la possibilité de surmonter les difficultés citées ci-dessus.L’objectif de ce travail est, d’une part, recenser dans quelles conditions de tels dispositifs de grand format peuvent représenter un appui opérationnel effectif, étant donné que dans la principale situation analysée le videowall n’était pas utilisé par les opérateurs et, d’autre part, explorer l’influence du process industriel dans l’utilisation de l’interface de contrôle de process. Ces questions sont abordées à la lumière de deux approches conceptuelles: celle de l’évolution des technologies de présentation d’information en salles de contrôle et celle de l’approche instrumentale. Les résultats auxquels nous sommes arrivés montrent que, pour être effectif, un videowall doit appuyer la construction de la vision globale du process, la mémoire à court terme et l’activité collective, aspects qui possèdent des configurations variables selon le process industriel contrôlé par les opérateurs. L’analyse des situations du point de vue de l’approche instrumentale permet de comprendre que l’effectivation de l’usage du videowall est également influencée par le processus de conception des écrans et que le contrôle du process industriel a lieu à travers de l’appropriation systémique des artefacts par les opérateurs, desquels le videowall doit faire partieThis PhD dissertation studies the operational activity in control rooms, from the point of view of the use of the technologies of information presentation. The evolution of these technologies, mainly marked by the reduction of the display area of operational information through the substitution of the old synoptic panels by the computer monitors, caused important transformations in the operational activity such as the loss of the global vision and a rising exigence of the short-term memory. Meanwhile, nowadays new technologies – such as the videowalls – enable the exhibition of operational data in large surfaces, giving the opportunity of supporting the above mentionned aspects. The aim of this paper is, firstly, identify the conditions under which such large screens could represent an effective operacional help, since in the main analysed situation the videowall has no operational use, secondly, to explore the influence of the industrial process in the use of the interface. These questions are tackled by two conceptual approaches: the one of the evolution of the technologies of information presentation in control rooms and the one of the instrumental approach. The results to wich we came show that, in order to be effective, a videowall must support the construction of the global vision, the short-term memory and the collective activity, aspects that have different characteristics according to the industrial process controlled by the operators. The analysis of the work situations from the point of view of the instrumental approach allows understanding that the effectiveness of the use of the videowall is also influenced by the screen design process and that the control of the industrial process occurs through the systemic appropriation of the artefacts by the operators
Esta tese estuda a atividade de operação em sala de controle, sob o ponto de vista do uso das tecnologias de apresentação de informações. A evolução destas tecnologias, principalmente marcada pela redução da área de exibição de informações operacionais através da substituição dos antigos painéis sinópticos pelos monitores de computador, provocou transformações importantes na atividade dos operadores tais como a perda da visão global e uma crescente exigência da memória de curto prazo. Entretanto, nos dias atuais, novas tecnologias – como os videowalls, por exemplo - permitem a exibição de dados operacionais em grandes superfícies, abrindo a possibilidade de suplantar as dificuldades mencionadas acima. O objetivo deste trabalho é, por um lado, recensear sob que condições tais dispositivos de grande formato podem representar um apoio operacional efetivo, já que na principal situação analisada o videowall não era utilizado pelos operadores e, por outro, explorar a influência do processo industrial na utilização da interface de controle de processo. Estas questões são abordadas à luz de duas abordagens conceituais: a da evolução das tecnologias de apresentação de informação em salas de controle e a da abordagem instrumental. Os resultados a que chegamos mostram que, para ser efetivo, um videowall precisa apoiar a construção da visão global do processo, a memória de curto prazo e a atividade coletiva, aspectos que possuem configurações variáveis segundo o processo industrial controlado pelos operadores. A análise das situações sob o ponto de vista da abordagem instrumental permite compreender que a efetivação do uso do videowall é também influenciada pelo processo de concepção das telas e que o controle do processo industrial ocorre através da apropriação sistêmica dos artefatos pelos operadores, dos quais deve fazer parte o videowall
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Chien, H. M. "Assessment of laparoscopic ergonomics and instrument design". Thesis, Queen's University Belfast, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431529.
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Ferreira, Ana Lucy Rodrigues. "O uso de instrumentos de análise ergonômica no processo de trabalho agrícola: o caso da colheita mecanizada da cana-de-açúcar". Universidade Federal de São Carlos, 2014. https://repositorio.ufscar.br/handle/ufscar/3756.
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Previous issue date: 2014-03-27Financiadora de Estudos e Projetos
The changing in the labor dynamics of the sugarcane harvesting, occasioned by integration of mechanical harvesters, has subjected workers to new working conditions, increasing the interactions with machines, and consequently causing new diseases and work accidents. For improving the performance of work so that this becomes less destructive of human capabilities, is important the use of instruments that allow the identification of risks from man-labor ratio, which are identified through the study of literature in Ergonomics. This study aimed to verify the applicability of the checkpoints of the instrument Ergonomic Checkpoints in Agriculture to the work situation in the context of mechanized harvesting of cane sugar. A review of the relevant issues related to the study was accomplished, considering the themes: Ergonomics, ergonomic analysis tools and working conditions; process of mechanized production of cane sugar, with a focus on the process of harvesting and working conditions; and, finally, the study of the instrument Ergonomic Checkpoints in Agriculture. Subsequently, the analysis of the instrument was accomplished, which was constituted of the following principal stages. Initially, the checkpoints of the instrument were classified considering the workloads, and the similarity of content. Posteriorly, the checkpoints were analysed with respect the applicability in the job functions found in mechanical harvesting of cane sugar process. As a result, 84 checkpoints were classified into 23 clusters and 16 checkpoints were not grouped, among which 11 clusters and 8 checkpoints, which represent 53% of the content of the instrument, were identified with potential of application in the sugarcane mechanical harvesting. The checkpoints identified may assist in the evaluation and implementation of better working conditions, considering the ergonomic point of view, in the mechanical harvesting of sugarcane.
A mudança na dinâmica de trabalho no processo de colheita da cana-de-açúcar, através da crescente inserção de colhedoras mecânicas, tem submetido os trabalhadores a novas condições de trabalho, que inclui a interação com máquinas e equipamentos, ocasionando doenças ocupacionais. Para melhoria das condições de realização do trabalho de forma que esse se torne menos destrutivo das capacidades humanas, é necessária a utilização de instrumentos que permitam a identificação de riscos provenientes da relação homem-trabalho, que são identificados através do estudo da literatura em Ergonomia. Este trabalho objetivou verificar a aplicabilidade dos pontos de verificação do instrumento Ergonomic Checkpoints in Agriculture à situação de trabalho no contexto da colheita mecanizada da cana-de-açúcar. Foi realizada uma revisão sobre os temas relevantes que envolvem o estudo, isto é: Ergonomia, instrumentos de análise ergonômica e condições de trabalho; processo de produção mecanizada da cana-de-açúcar, com enfoque no processo de colheita e nas condições de trabalho advindas deste processo; e, estudo do instrumento Ergonomic Checkpoints in Agriculture. Posteriormente, foi realizada a análise do instrumento, que se constituiu das etapas de classificação dos pontos de verificação do instrumento por cargas de trabalho, por similaridade de conteúdo, e da análise da aplicabilidade dos pontos de verificação considerando as características e as funções de trabalho encontradas no processo de colheita mecanizada da cana-de-açúcar. Como resultados, 84 pontos de verificação foram classificados em 23 agrupamentos e 16 pontos de verificação não foram agrupados, dentre os quais foram identificados 11 agrupamentos e 8 pontos de verificação aplicáveis, que representam 53% do conteúdo do instrumento. Os pontos de verificação identificados podem auxiliar na avaliação e implementação de melhores condições de trabalho, do ponto de vista ergonômico, na colheita mecanizada da cana-de-açúcar.
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Geuser, Fabien de. "Travail du manager et ergonomie des instruments de gestion". Jouy-en Josas, HEC, 2006. http://www.theses.fr/2006EHEC0002.
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L'objectif de cette thèse est de contribuer à l'étude de l'ergonomie des instruments de gestion au service des managers. La démarche suivie dans cette démarche a consisté en la construction d'un cadre théorique dérivé de l'ergonomie pour caractériser le travail réel des managers (par opposition au travil prescrit) et analyser ensuite l'adaptation des instruments de gestion aux exigences de ce travail réel. Cette thèse montre alors que le travail réel des managers souffre moins d'une faible connaissance que d'une faible compréhension. Mais ce savoir n'a que peu fait l'objet de modélisation théorique pour articuler les besoins réels des managers avec le résultat de leur travail. Par conséquent, la conception des instruments de gestion reste souvent détachée de ces besoins. Cet écart ergonomique contribue à l'explication de la perte des instruments de gestion largement évoquée par la littérature.
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Chi, Ju-Yang. "Musical Instrument Ergonomics in Violin and Piano Performance". Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/30064.
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The compatibility of the instrument with human physical abilities and characteristics is one of the principles in ergonomics. Inadequate instrument set-ups and sizes that mismatch the player’s physical attributes is frequently cited as one of the risk factors contributing to the development of playing-related musculoskeletal disorders (PRMDs) in violin and piano performers. For violinists, playing in a sustained asymmetric posture is inevitable and it has been observed that the left upper limb, which is the side that supports the instrument, is predominantly symptomatic in upper string players (violinists and violists). The use of adaptive accessories, such as a chin rest and/or a shoulder rest, has been proposed to be a way to improve the interface between the instrument and the player. For pianists, a “one-size-fits-all” keyboard has been the available industry standard with respect to the size of the keyboard in modern piano manufacturing, teaching and performing. However, recent demographic evidence proposes that this standardised piano keyboard discriminates against many pianists who have relatively smaller hand sizes. Controversies persist in best methods to ergonomically fit the instrument to the player among players and pedagogues of both these instruments, and no reviews to date have been conducted to determine whether a collection of evidence to support ergonomic ideals exists. This doctoral thesis presented the synthesis of work on investigating ergonomics in violin and piano performance and addressing knowledge gaps regarding optimising the interface between the instrument and the player.
A systematic review of this topic was undertaken in Chapter 2. The results revealed that only scarce evidence with heterogeneity and low quality of methodology available on instrumental ergonomics in violin and piano performance. An observational study on interaction between hand span and different sizes of keyboards on muscle activity in pianists was conducted in Chapter 3 to investigate the biomechanical responses under ergonomic modifications, while hand size was identified as a potential risk factor for PRMDs (Chapter 2). The results of this experiment showed less muscular loads in pianists while they were playing on a matched size of keyboard regarding their hand spans, suggesting a compatible interface between the player and instrument can enhance performance biomechanics.
Chapter 4 and 5 presented an interview study conducted to explore the factors that contribute to optimising the instrument-player interface in violin playing while the lack of comprehensive understanding of violin set-up was shown in Chapter 2. In Chapter 4, interview data was extracted in a way to present how the violin instrument should fit to a player. The results suggested there were fundamental inconsistencies in the use of physical elements (e.g. violin accessories and position the violin instrument) and the attitudes and beliefs towards instrument set-up while participants held onto different sources of knowledge. On the other hand, comfort and budget were commonly seen as the considerations in selecting the ergonomic set-up. Chapter 5 presents the findings from the aspect of how violinists should fit with their instruments, showing the biomechanics greatly varies but having a neutral posture may be the common aim in violin playing. It is also revealed the phenomenon that violinists tended to prioritise musical performance over monitoring their own posture and movement. Results in both Chapter 4 and 5 showed teacher plays an important role in either pedagogically providing ergonomic suggestions or working with body health professionals on improving a performance interface in violinists, and the process can be time-consuming.
The data presented in this thesis showed the complexity of optimising the interface between the musical instrument and the player. From the investigations on violinists and pianists, interdisciplinary collaborations and crossover trainings in the professionals are recommended so that musicians are able not only to be trained with adequate ergonomic supports but to sustain their desirable musical outcomes. Future research building upon the findings of this thesis will further facilitate the inclusion of ergonomics in the industry of musical performance.
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Gallasch, Cristiane Helena 1981. "Adaptação cultural do instrumento Work Role Functioning Questionnaire". [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311472.
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Orientador: Neusa Maria Costa AlexandreDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
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Resumo: Afecções osteomusculares representam um sério problema de saúde pública, causando absenteísmo, afastamentos e incapacidade funcional nas diversas categorias de trabalhadores. Questionários são considerados úteis para investigar os sintomas osteomusculares, sendo possível identificar fatores do ambiente trabalho associados com o desenvolvimento desses distúrbios. Os objetivos deste estudo foram traduzir e adaptar culturalmente o instrumento Work Role Functioning Questionnaire para o português falado no Brasil, assim como avaliar sua confiabilidade para aplicação em indivíduos com distúrbios osteomusculares. A adaptação cultural foi realizada conforme as recomendações da literatura internacional, obedecendo as etapas de tradução, retro-tradução, e revisão por um comitê de especialistas. Foi realizado pré-teste com a participação de 30 indivíduos com sintomas osteomusculares. As propriedades psicométricas foram avaliadas após a participação de 105 sujeitos portadores de sintomas osteomusculares e 105 indivíduos sem sintomas. A confiabilidade foi avaliada por meio da consistência interna e estabilidade, com resultados satisfatórios para o instrumento como um todo (alfa de Cronbach = 0,95). Na avaliação de cada sub-escala, o alfa de Cronbach foi maior que 0,85, exceto para aquela que avalia a demanda social. O Coeficiente de Correlação Intraclasse, que avaliou a estabilidade teste-reteste, foi satisfatório para a demanda mental (0,68) e excelente para as demais (0,82 ¿ 0,91). Na avaliação da validade de constructo, por meio da comparação entre os grupos, a pontuação média obtida foi menor para as demandas física, de plano de trabalho, e de produção para o grupo de indivíduos com sintomas osteomusculares. Houve diferença significativa entre os dois grupos na comparação dessas demandas (p<0,001). Os dados demonstram que o processo de adaptação cultural foi realizado com sucesso e que a versão do instrumento obtida apresenta propriedades psicométircas confiáveis para utilização na população brasileira. Palavras-chave: Ergonomia. Enfermagem Ocupacional. Doenças Musculoesqueléticas. Avaliação da Capacidade de Trabalho. Comparação Transcultural
Abstracts: Musculoskeletal disorders represent a serious problem in public health, resulting in absenteeism, loss of work and disabilities. Questionnaires have been considered useful to identify musculoskeletal symptoms and to investigate correlated factors in workplace. The study objectives were to translate and adapt the Work Role Functioning Questionnaire into the Brazilian Portuguese language and evaluate its reliability in patients suffering from musculoskeletal disorders. The cross-cultural adaptation was performed according to the internationally recommended methodology, using the following guidelines: translation, back-translation, revision by a committee and pretest. The pretest was carried out with 30 patients suffering from musculoskeletal disorders. Psychometric properties were evaluated by administering the questionnaire to 105 subjects with musculoskeletal disorders and receiving physical therapy treatment. The reliability was estimated through stability and homogeneity assessment. The construct validity was tested comparing the 105 subjects suffering from musculoskeletal disorders to 105 healthy workers. The results indicated good content validity and internal consistency (Cronbach alpha= 0,95). Cronbach alpha for each scale was > 0,85, except for the social demand scale. The Intraclass Correlation Coefficient for the test-retest reliability was satisfactory for mental demands (ICC= 0,68) and excellent for the others (0,82 ¿ 0,91). In relation to the construct validity, the mean score obtained for each scale was lower for physical, work scheduling, and output demands in the subjects with musculoskeletal disorders. There was a significant difference (p<0,001) between the groups in comparison to work scheduling, physical and output demands. The data showed that the cross-cultural adaptation process was successful and the adapted instrument demonstrated psychometric properties making it reliable to use in the Brazilian culture. Key-words: Ergonomics. Occupational Health Nursing. Musculoskeletal Diseases. Work Capacity Evaluation. Cross-cultural Comparison
Mestrado
Enfermagem e Trabalho
Mestre em Enfermagem
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Dequidt, Clotilde. "Étude des conditions d'efficacité d'une analogie mécanique instrumentée pour l'enseignement de l'électrocinétique en terminale scientifique". Thesis, Clermont-Ferrand 2, 2015. http://www.theses.fr/2015CLF20014/document.
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Depuis plus de trente années, des recherches en didactique de la physique ont montré dans un grand nombre de pays que les élèves rencontrent des difficultés d'apprentissage en électricité et ce, quel que soit le niveau scolaire. Ces difficultés s’expliquent notamment par un certain nombre de conceptions qui viennent entraver la compréhension des phénomènes électriques. Pour palier ces difficultés, les didacticiens, et de fait les enseignants, utilisent des analogies plus ou moins adaptées et performantes. Pour réaliser notre travail de recherche, nous étudions une analogie innovante entre les domaines mécanique (domaine source) et électrique (domaine cible), cette analogie a la particularité d'être instrumentée, ce qui permet d'expérimenter dans le domaine source. Notre travail de recherche s’intéresse aux conditions d’efficacité de cette analogie pour l'apprentissage des élèves. La revue bibliographique dans les domaines de la didactique de la physique, l'ergonomie et la cognition incarnée a permis, dans un premier temps, d'établir un ensemble de conditions auxquelles doit répondre l'analogie pour être efficace. Notre travail a permis de montrer que cette analogie possède les critères requis pour être considérée comme une analogie potentiellement efficace. Dans un second temps, nous avons vérifié l'impact de la mise en oeuvre de cette analogie avec des élèves de terminale scientifique. Pour cela nous avons réalisé des questionnaires et des entretiens avec les élèves. Les résultats aux questionnaires mettent en évidence une efficacité moindre que celle que laissait supposer l'étude sur le potentiel didactique de l'analogie. C'est par le biais d'entretiens auprès des enseignants et d'enregistrements de cours qu'une très grande disparité d'utilisation de l'analogie a été repérée. L'étude des données recueillies permet de mieux comprendre les raisons qui expliquent la faible utilisation de l'analogie. Ces résultats ont permis la conception d'une première version d'un guide d'utilisation à destination des enseignantsFor over thirty years, research in didactics of physics have shown in many countries that students encounter learning difficulties in electricity and that, regardless of the grade level. These difficulties can be especially explained by a number of misconceptions that prevent the understanding of electrical phenomena. To overcome these difficulties, researchers in didactics and teachers use analogies which are more or less adapted and powerful. To achieve our research, we study an innovative mechanical analogy between mechanical domain (source domain) and electrical domain (target domain). This analogy has the feature of being instrumented, which allows to experiment in the source domain. Our research focusses on the conditions of effectiveness of this analogy for student learning. The literature review in physics, science education, ergonomics and embodied cognition allowed, firstly, to establish a set of conditions to be met by the analogy to be effective. Our work has shown that this analogy has the necessary criteria to be considered an effective analogy. Secondly, we tested the impact of the implementation of this analogy with scientific 12th grade students. For this, we made tests and interviews with students. The test results show a lower efficiency than suggested by the study of the potential of the analogy. Through interviews with teachers and course records, we note a great disparity of use of the analogy. The study of collected data allows to better understand the reasons of the low use of the analogy. These results allowed to design a first version of a manual for teachers
Książki na temat "Ergonomic instruments"
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Standardization, International Organization for, red. Ergonomics of the thermal environment-- instruments for measuring physical quantities: Ergonomie de l'environnement thermique-- appareils de mesure des grandeurs physiques. [Geneva, Switzerland]: International Organization for Standardization, 1996.
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Standardization, International Organization for, red. Ergonomics of the thermal environment: Instruments for measuring physical quantities = Ergonomie des ambiances thermiques : appareils de mesure des grandeurs physiques. Wyd. 2. Genève: International Organization for Standardization, 1998.
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Wiklund, Michael E. Medical device and equipment design: Usability engineering and ergonomics. Buffalo Grove, IL: Interpharm Press, 1995.
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Bret, Weinger Matthew, Gardner-Bonneau Daryle i Wiklund Michael E, red. Handbook of human factors in medical device design. Boca Raton, FL: CRC Press/Taylor & Francis Group, 2010.
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B, Wilcox Stephen, red. Designing usability into medical products. Boca Raton: CRC Press, 2005.
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Wiklund, Michael E. Designing usability into medical products. Boca Raton: CRC Press, 2005.
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Rogula, Tomasz G., Esam Batayyah i Philip R. Schauer. Operating Room Set-up and Instrumentation for Laparoscopic Bariatric Surgery. Redaktorzy Tomasz Rogula, Philip Schauer i Tammy Fouse. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190608347.003.0007.
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This chapter discusses operating room set-up and the basic instruments required for laparoscopic bariatric surgery, including hand instruments (which come in different lengths that accommodate the large cavity of bariatric patients), retraction instruments, stabilizers, and energy sources for transection and coagulation. In addition, staplers are discussed and the articulating and power technology, along with different thicknesses of reloads, as well as buttressing materials, are described. Voice activation technology in operating theater simplifies many of the demands on the surgeon. Finally, robotics improve ergonomics for the surgeon and enhance complex maneuvers in the abdominal cavity.
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Lightner, Nancy J. Advances in Human Factors and Ergonomics in Healthcare and Medical Devices. Springer, 2018.
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Lightner, Nancy J., i Jay Kalra. Advances in Human Factors and Ergonomics in Healthcare and Medical Devices. Springer, 2020.
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Advances in Human Factors and Ergonomics in Healthcare and Medical Devices. Springer, 2019.
Znajdź pełny tekst źródłaCzęści książek na temat "Ergonomic instruments"
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Saxena, Amulya K. "Instrument Ergonomics". W Essentials of Pediatric Endoscopic Surgery, 47–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-78387-9_4.
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Burkhardt, Rino. "Design and Ergonomics of Microsurgical Instruments". W Microsurgery in Periodontal and Implant Dentistry, 69–98. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96874-8_4.
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Lee-Ong, Alembert, i Alfred Allen Buenafe. "Instrumentations and Access Devices". W Mastering Endo-Laparoscopic and Thoracoscopic Surgery, 51–59. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3755-2_9.
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AbstractMinimally Invasive Surgery (MIS) instruments are patterned after conventional hand instruments to perform similar specific functions; they are designed to pass and perform through small diameter ports and at a distance to the target tissues. The development of instruments has evolved since the early period of MIS, starting from the use of rudimentary gynecologic instruments; at that time. Gynecology was the only specialty widely performing laparoscopic procedures. The evolution in design, ergonomics, and variety has been pivotal for advancing endo-laparoscopic surgery to perform more complex surgical procedures with safety and better outcome. Various evolving concepts of MIS like Single-site or reduced Surgery, Natural Orifice Transluminal Endoscopic Surgery (NOTES), Needlescopic Surgery, and Robotic-assisted Surgery have also pushed the development of features such as articulation control, pre-bent configuration, smaller diameter, and robotic instruments to meet specific needs.
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Rajakumar, Keerthik Dhivya, Rajeswari Jayaraj, Jagannath Mohan i Adalarasu Kanagasabai. "Determination of Effects of Instrumental Music on Brain Signal Using Electroencephalogram". W Ergonomics for Design and Innovation, 141–50. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94277-9_13.
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Remlinger, Wolfram, i Klaus Bengler. "RAMSIS kognitiv als Instrument zur Analyse und Auslegung von Sichtbedingungen". W Homo Sapiens Digitalis - Virtuelle Ergonomie und digitale Menschmodelle, 297–302. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-50459-8_13.
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Spitzhirn, Michael, i Angelika C. Bullinger-Hoffmann. "Eine Anforderungsermittlung zu digitalen Menschmodellen als Instrument zur ergonomischen Arbeitsprozessgestaltung". W Homo Sapiens Digitalis - Virtuelle Ergonomie und digitale Menschmodelle, 229–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-50459-8_6.
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Sattler, Christine, Karlheinz Sonntag i Katja Götzen. "The Quality Culture Inventory (QCI): An Instrument Assessing Quality-Related Aspects of Work". W Advances in Ergonomic Design of Systems, Products and Processes, 43–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-48661-0_3.
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Lucas-Hernández, M., F. J. Pérez-Duarte, A. M. Matos-Azevedo, J. B. Pagador i F. M. Sánchez-Margallo. "Ergonomics during the Use of LESS Instruments in Basic Tasks: 2 Articulated vs. 1 Straight and 1 Articulated Graspers". W IFMBE Proceedings, 1845–48. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-00846-2_455.
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Hancock, Gabriella M., Mira Gruber, Uyen D. Bui, Jessica Blay-Moreira, Yvette Apatiga, Christian E. Schmitz i Peter A. Hancock. "A Synthesis of Subjective Scales Which Assess Worker Fatigue: Building a Simple, Reliable, and Effective Evaluative Instrument". W Proceedings of the 21st Congress of the International Ergonomics Association (IEA 2021), 797–803. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-74614-8_98.
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Nishimoto, Hiroyuki, Tomoyoshi Koyanagi, Makoto Sarata, Ayae Kinoshita i Mitsukazu Okuda. "“Memes” UX-Design Methodology Based on Cognitive Science Regarding Instrumental Activities of Daily Living". W Digital Human Modeling and Applications in Health, Safety, Ergonomics and Risk Management. Healthcare Applications, 264–73. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22219-2_20.
Pełny tekst źródłaStreszczenia konferencji na temat "Ergonomic instruments"
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Shinohara, Kazuhiko. "Ergonomic problems in surgical smoke control during surgery". W 14th International Conference on Applied Human Factors and Ergonomics (AHFE 2023). AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1003495.
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Surgical smoke is the plume and air contaminants produced by energy devices such as electrocautery and laser scalpels during the surgery. Surgical smoke consists of fine particles containing pathogenic microorganisms and chemical substances from high-temperature carbonized tissues, and poses a health risk to medical personnel during the surgery. The COVID-19 pandemic has highlighted the importance of surgical smoke control. As a surgical smoke protection on the medical staff side, personal protective equipment such as N-95 high-performance masks are widely used. On the other hand, the surgical smoke exhaust system includes ventilation equipment for the entire operating room and a device that directly aspirates surgical smoke in the operative field. Wearing a mask for a long time poses problems such as fatigue, hypercapnia and loss of concentration. Increasing the smoke evacuation efficiency of a surgical instrument-mounted smoke evacuation device poses problems such as deterioration of operability and patient temperature maintenance. Surgical instruments equipped with smoke suction tubes suffer from deterioration in operability due to increased size and weight. Increased ventilation in the surgical environment may cause drying of organs and hypothermia. Surgical instruments with smoke exhaust devices require further reduction in weight, diameter, and ergonomic design. In addition, it is necessary to equip surgical instruments and the ventilation function of the operating room with an automatic maintenance function of body temperature and body cavity temperature and humidity.It is important to enlighten medical workers about the importance of measures against surgical smoke, and to improve the smoke exhaust system considering maintenance of physiological environment and solve ergonomic problems.
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Herman, Benoit, Ali Hassan Zahraee, Jerome Szewczyk, Guillaume Morel, Christophe Bourdin, Jean-Louis Vercher i Brice Gayet. "Ergonomic and gesture performance of robotized instruments for laparoscopic surgery". W 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2011). IEEE, 2011. http://dx.doi.org/10.1109/iros.2011.6048105.
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Herman, B., A. H. Zahraee, J. Szewczyk, G. Morel, C. Bourdin, J. L. Vercher i B. Gayet. "Ergonomic and gesture performance of robotized instruments for laparoscopic surgery". W 2011 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2011). IEEE, 2011. http://dx.doi.org/10.1109/iros.2011.6094449.
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Jaspers, J. E. N., M. Shehata, F. Wijkhuizen, J. L. Herder i C. A. Grimbergen. "Mechanical Manipulator for Intuitive Control of Endoscopic Instruments With Seven Degrees of Freedom". W ASME 2004 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/detc2004-57137.
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Performing complex tasks in Minimally Invasive Surgery (MIS) is demanding due to a disturbed hand-eye co-ordination, the use of non-ergonomic instruments with limited degrees of freedom (DOFs) and a lack of force feedback. Robotic telemanipulatory systems enhance surgical dexterity by providing up to 7 DOFs. They allow the surgeon to operate in an ergonomically favorable position with more intuitive manipulation of the instruments. Commercially available robotic systems, however, are very bulky, expensive and do not provide any force feedback. The aim of our study was to develop a simple mechanical manipulator for MIS. When manipulating the handle of the device, the surgeon’s wrist and grasping movements are directly transmitted to the deflectable instrument tip in 7 DOFs. The manipulator consists of a parallelogram mechanism with steel wires. First phantom experience indicated that the system functions properly. The MIM provides some force feedback improving safety. A set of MIMs seems to be an economical and compact alternative for robotic systems.
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McGlothlin, J., J. Vosicky, E. Peterson, E. Protopapas i M. Hunt. "296. Development of a Risk Assessment Method Using Ergonomic Principles, Videography Techniques, and Real-Time Instruments". W AIHce 2000. AIHA, 2000. http://dx.doi.org/10.3320/1.2763638.
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Sobchinskij, A. I., M. G. Zharkova, A. V. Olshevskaya i V. S. Chegge. "MAIN TRENDS OF FORMATION OF WASTE PROCESSING PLANTS. DIGITALIZATION AND AUTOMATION IN INDUSTRIAL DESIGN". W INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION. DSTU-Print, 2020. http://dx.doi.org/10.23947/itno.2020.311-316.
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The project distinguishes specific of industrial architecture and particularly waste recycling plants. Evoluted tendentions of form-creating, common to this kind of structures, further instruments to attain architectural expression, constructive robustness, energy efficiency, economical practicality and ergonomic accommodation. Based on the results of the analysis of the process and principles of shaping this type of structures, the possibility of design automation is described.
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Meshorer, Itai, Amit Milstein, Oliver Nathan, Lior Soffer, Barak Rattner, Michal Sudak i Amir Szold. "Predicting Wrist Ergonomics in Laparoscopy using the HandX®". W THE HAMLYN SYMPOSIUM ON MEDICAL ROBOTICS. The Hamlyn Centre, Imperial College London London, UK, 2023. http://dx.doi.org/10.31256/hsmr2023.33.
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Laparoscopic surgery has become increasingly popular due to its benefits over open surgery. However, one of the major challenges in laparoscopic surgery is the ergonomics of the surgeon. Ergonomics plays a crucial role in laparoscopic surgery, as surgeons are at risk of developing musculoskeletal disorders (MSDs) due to prolonged and repetitive motions [1,2]. One of the most common areas affected by MSDs in surgeons is the wrist, which can be affected by various factors such as handle design, awkward postures, and high force demands [3]. Laparoscopic surgery requires precise and delicate movements, that can put a significant strain on the wrist. Wrist flexion and deviation refer to the bending of the wrist forward and backward and twisting of the wrist to the left or right, respectively. Optimal wrist posture minimizes the degree of flexion and deviation, allowing for a neutral wrist position. On the other hand, excessive wrist flexion and deviation can lead to musculoskeletal pain, fatigue, and reduced grip strength. Neutral wrist posture with a lower degree of flexion and deviation has been shown to reduce musculoskeletal symptoms, increase dexterity, and improve surgical precision. Additionally, forearm rotation (pronation and supination) also plays a role in wrist ergonomics. Based on the rapid upper limb assessment (RULA), for wrist flexion/extension a range of 0-15° is recommended, and close to neutral position for wrist deviation, whilst pronation or supination of the forearm is considered ergonomic for up to 45° [4], [5]. The HandX® [6] is a hand-held laparoscopic, software-driven, robotic platform, used to manipulate 5mm fully articulating instruments. The HandX has four robotic degree-of-freedom (DoF), here we focus on the two DoF’s for controlling articulation. The HandX’s sphere-like control interface (CI) allows the surgeon to manipulate the articulated instruments' end-effector in all directions, over two axes: pitch and yaw
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Aguilar Olivera, Albeiro, i Maye Catalina Neira Cardenas. "Ergonomic risk in nurses and caregivers due to patient care and mobilization in senior centers". W 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1002663.
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This paper contains a study related to the risk and ergonomic conditions in nurses and caregivers, who are involved in care and mobilization of patients in senior centers. The results were obtained trought: mixed approach methodology and descriptive scope. Pragmatic techniques and data collection instruments were utilized too, including documentary analysis of work procedures, direct observation, photographic records, and cards adapted to senior centers of the Assistance mobilization of hospitalized patients methodology (MAPO). Among the findings, the critical activities and tasks in the care and mobilization of dependent or non-cooperative patients (NC) and semi-dependent or partially cooperative (PC) have been identified. In addition, other determinations have been made, including: lifting factors, minor aids, wheelchairs, environment and training in the facilities or wards of the senior center, and the calculation of ergonomic risk level, both for nursing staff and caregivers. In sum, this article provides the scientific community with a detailed risk panorama of a population and a work environment that has seen little attention in the literature, allowing the design and development of improvement strategies or the validation of existing ones.
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Iordache, Alice Valeria, Alessandro Casella, Elisa Iovene, Junling Fu, Federico Pessina, Marco Riva, Giancarlo Ferrigno, Leonardo S. Mattos i Elena De Momi. "Envisioning Robotic Exoscope: Concept and Preliminary Results". W The Hamlyn Symposium on Medical Robotics: "MedTech Reimagined". The Hamlyn Centre, Imperial College London London, UK, 2022. http://dx.doi.org/10.31256/hsmr2022.60.
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The introduction of a surgical microscope in neurosurgery increased the spectrum and safety of interventions. The surgeon operates with both hands on the patient while also controlling the visualization system to provide the proper view. Despite the benefits of the microscope, low ergonomics may lead to long-term effects on the muscu- loskeletal system. The bulky binocular system may limit the setup’s flexibility, hindering robotics integration into the operating theatre. Recently, the introduction of the exoscopes overcame those limitations by enabling a flexible and ergonomic working environment, combined with improved image quality. The exoscope is fixed on the surgical field through pneumatic arm holders that the surgeon can move manually or through foot control. Although providing the surgeon with enhanced vision, the complexity of its use has emerged as a limiting factor [1]. The continuous switching from operation theatre and visualization system reduces the smoothness of the surgical procedure, and the steep learn- ing curve of the foot pedal [2] leads to switching to the conventional microscope in most cases. Visual servoing techniques [3] have been primarily studied in the context of camera automation in minimally invasive laparoscopy [4]. Its potential has become even more significant in the context of neurosurgery, as the only solution for tracking instruments is to employ vision sensors. However, visual servoing techniques for exoscope automation are currently limited due to open challenges in neurosurgical practices. This work proposes a framework for an autonomous vision-guided camera holder that tracks and follows a selected surgical instrument based on a visual servoing technique. We envision this solution to automate the exoscope in neurosurgery, providing intuitive control of the system and reducing surgeon workload and operating time.
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He, Xingchi, Daniel Roppenecker, Dominikus Gierlach, Marcin Balicki, Kevin Olds, Peter Gehlbach, James Handa, Russell Taylor i Iulian Iordachita. "Toward Clinically Applicable Steady-Hand Eye Robot for Vitreoretinal Surgery". W ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88384.
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This paper reports new developments and optimizations for clinical use of the Steady-Hand Eye Robot for vitreoretinal surgery. Vitreoretinal surgery requires precise micro-manipulation of delicate tissues. Surgical performance is limited by physiological hand tremor, fatigue, poor kinesthetic feedback, as well as patient movement. The previously developed Steady-Hand Eye Robot has been extensively used in in vivo experiments. Several safety and ergonomic limitations observed in the in vivo environment serve as motivation for a novel robot wrist design. The new robot wrist consists of a symmetric remote center of motion (RCM) tilt mechanism and a slim tool holder with a quick release mechanism for the surgical instruments. The RCM tilt mechanism provides a tilt motion range of ±45° and a stiffness of 21 N/mm. Two different release force thresholds for the quick release mechanism were designed. The soft configuration requires 2–3 N to retract the surgical instruments while the hard configuration requires 5–6 N.