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. ******

许多行业的工人重复使用手持直接电动工具来确保螺纹紧固件。肌腱炎和腕管综合征是常见的重复应变损伤，手持电动工具的使用者遭受了这种伤害。本田加拿大制造业的工业合作伙伴提出了一种名为“ Ergo Arm”的人体工程学设备的概念。该设备由充气袖带组成，该袖带在DC工具打开（从而稳定手腕）时会膨胀，并在DC工具关闭时放气。需要直接证明该设备的效果，并且在广泛使用其设计之前需要优化其设计。 ****该项目的目的是表征DC手动操作过程中手腕肌腱应变和腕管压力，并研究ERGO ARM设备在此操作过程中稳定手腕的效果。该项目还打算优化设备的设计，以便具有最大的有效性。 ****将解剖几只尸体手并用传感器进行仪器，以测量肌腱应变和腕管压力。将开发一个动态的手工模拟器，该模拟器可以将肌肉力施加到尸体臂的腱中，并在DC手工刀具操作过程中施加相同的外部载荷。模拟将不带有ERGO手臂设备安装在手腕上。设备的各种设计参数将变化，以找到变量的最佳组合，这些变量可能会导致肌腱应变和腕管压力的最大降低。该项目将在制造过程中更好地了解腕部负荷，并调查防止伤害的方法。该项目可以降低给工业合作伙伴的医疗保健成本并提高生产率。它可以帮助提高加拿大人的生活质量。 ******