Fernanda Keiko Tsumanuma , Paula Karina Hembecker , Christiano Marlo Paggi Claus , Marcelo de Paula Loureiro , Fabíola Reinert , Mauren Abreu de Souza
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引用次数: 0
摘要
腹腔镜器械手柄的设计和尺寸是决定外科医生手部握持结构的关键,因此会对整体手术效率和外科医生的舒适度产生不利影响。本研究旨在探讨腹腔镜手柄尺寸和手部表面积对手术任务表现的影响。研究人员对 29 名初出茅庐的医科学生进行了单盲随机交叉试验。参与者在 "黑盒子 "模拟器中使用两种不同尺寸的剪刀型手柄完成了三项模拟任务。手术表现通过错误次数和完成每项任务所需的时间进行评估。使用 3D 扫描仪测量了手部人体测量数据。当使用较小的手柄执行切割和缝合任务时,执行时间明显较长。此外,使用标准手柄时,手部表面积与木钉转移任务时间呈正相关,而在小手柄组和标准手柄组中,手部表面积与切割任务时间呈正相关。我们还发现,大手参与者的执行时间与错误次数呈正相关。我们的研究结果表明,腹腔镜手柄的大小和手部面积会影响手术表现,这突出了在手术器械设计中考虑手部人体测量差异的重要性。
Effect of laparoscopic handle size on surgical performance: A randomized crossover trial
Laparoscopic instrument handles design and dimensions are crucial to determine the configuration of surgeons' hand grip and, therefore, can have a deleterious effect on overall surgical efficiency and surgeons' comfort. The aim of this study is to investigate the impact of laparoscopic handle size and hand surface area on surgical task performance. A single-blind, randomized crossover trial was carried out with 29 novice medical students. Participants performed three simulated tasks in "black box" simulators using two scissor-type handles of different sizes. Surgical performance was assessed by the number of errors and time required to complete each task. Hand anthropometric data were measured using a 3D scanner. Execution time was significantly higher when cutting and suturing tasks were performed with the smaller handle. In addition, hand surface area was positively correlated with peg transfer task time when performed with the standard handle and was correlated with cutting task time in small and standard handle groups. We also found positive correlations between execution time and the number of errors executed by larger-handed participants. Our findings indicate that laparoscopic handle size and hand area influence surgical performance, highlighting the importance of considering hand anthropometry variances in surgical instrument design.
期刊介绍:
Medical Engineering & Physics provides a forum for the publication of the latest developments in biomedical engineering, and reflects the essential multidisciplinary nature of the subject. The journal publishes in-depth critical reviews, scientific papers and technical notes. Our focus encompasses the application of the basic principles of physics and engineering to the development of medical devices and technology, with the ultimate aim of producing improvements in the quality of health care.Topics covered include biomechanics, biomaterials, mechanobiology, rehabilitation engineering, biomedical signal processing and medical device development. Medical Engineering & Physics aims to keep both engineers and clinicians abreast of the latest applications of technology to health care.