Investigation of tendon strains and carpal tunnel pressure during hand held power tool operation

手持电动工具操作过程中肌腱应变和腕管压力的研究

• 批准号: 511838-2017
• 负责人: Chandrashekar, Naveen
• 金额: $ 3.5万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=647154
• 关键词: Investigation; tendon; strains; carpal; tunnel

Hand-held DC power tools are used repetitively by workers in many industries to secure threaded fasteners. Tendonitis and carpal tunnel syndrome are common repetitive strain injuries and the users of hand held power tools suffer from such injuries. The Industrial partner, Honda Canada manufacturing has come up with a concept of an ergonomic device called "Ergo Arm". The device consists of an inflatable cuff that inflates when the DC tool is on (thus stabilizing the wrist) and deflates when the DC tool is off. Direct evidence of the effect of this device is needed and optimization of its design is required before it is widely used. ****The goal of this project is to characterize the wrist tendon strains and carpal tunnel pressure during DC Hand tool operation and to study the effect of the Ergo Arm device in stabilizing the wrist during such operation. The project also intends to optimize the design of the device so that it has maximum effectiveness. ****Several cadaver hands will be dissected and instrumented with sensors to measure tendon strain and carpal tunnel pressure. A dynamic hand simulator will be developed which could apply muscular forces into the tendons of the cadaver arms and apply the same external loads seen during DC hand tool operation. Simulations will be run without and with Ergo Arm device mounted on the wrist. Various design parameters of the device will be varied to find the optimal combination of variables that could result in maximum reduction in tendon strain and carpal tunnel pressure. The project will result in better understanding of wrist loads during manufacturing operations and investigates ways to prevent injuries. The Project could reduce health care costs to the industrial partner and improve the productivity. It could help increase the quality of life for Canadians. ******

手持直流电动工具被许多行业的工人反复使用，以固定螺纹紧固件。肌腱炎和腕管综合征是常见的重复性劳损，手持动力工具的使用者遭受这种损伤。工业合作伙伴，本田加拿大制造业提出了一个概念，一个符合人体工程学的设备称为“Ergo手臂”。该器械由一个充气袖带组成，当DC工具打开时充气（从而稳定手腕），当DC工具关闭时放气。在广泛使用之前，需要直接证据证明该装置的效果，并需要对其设计进行优化。* 本项目的目标是表征DC Hand工具操作期间的手腕肌腱应变和腕管压力，并研究Ergo Arm器械在此类操作期间稳定手腕的效果。该项目还打算优化该设备的设计，使其具有最大的效率。* 将解剖几只尸体手，并安装传感器以测量肌腱应变和腕管压力。将开发一种动态手模拟器，该模拟器可以将肌肉力施加到尸体手臂的肌腱中，并施加与DC手动工具操作期间相同的外部载荷。模拟将在不使用和使用安装在手腕上的Ergo Arm器械的情况下运行。将改变器械的各种设计参数，以找到最佳变量组合，从而最大限度地降低肌腱应变和腕管压力。该项目将使人们更好地了解制造过程中的腕部负荷，并研究防止受伤的方法。该项目可以降低工业合作伙伴的医疗保健成本，提高生产力。它可以帮助提高加拿大人的生活质量。******