FlexRim Low Impact Wheelchair Pushrim

FlexRim 低冲击轮椅推轮

基本信息

批准号：
6526332
负责人：
Peter William Axelson
金额：
$ 33.69万
依托单位：
BENEFICIAL DESIGNS, INC.
依托单位国家：
美国
项目类别：
财政年份：
2001
资助国家：
美国
起止时间：
2001-09-13 至 2005-02-28
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/6526332
关键词：
assistive device /technology bioengineering /biomedical engineering biomechanics biomedical equipment development clinical biomedical equipment clinical research human subject limb movement medical rehabilitation related tag pain repetitive motion injury

项目摘要

DESCRIPTION (Applicant's Abstract): Approximately 65 percent of manual wheelchair users experience upper extremity pain or injury, which can significantly impact their mobility and independence. Research has demonstrated a relationship between impact stresses on the upper extremities during wheelchair propulsion and upper extremity injury. Impact stresses occur when the hand contacts the pushrim, transmitting the stresses to the wrist, elbow, and shoulder. Current pushrim technologies do not effectively reduce these impact stresses. The FlexRim consists of an innovative flexible interface between the pushrim and wheel that reduces the impact stresses related to upper extremity injuries. In Phase I, three FlexRim concepts were developed and evaluated. The concepts allowed the pushrim to translate relative to the wheel, lowering impact forces. Use of the FlexRim did not adversely affect propulsion efficiency. In Phase II, the FlexRim design will be refined based upon Phase I results. Biomechanical evaluations of impact loading and mechanical efficiency will be conducted at the Pittsburgh Human Engineering Research Laboratories with 15 subjects. Thirty wheelchair users will evaluate the FlexRim over a three to six month period of use. Because the FlexRim reduces impact stresses related to upper extremity injuries, it serves to prevent injury, and preserve function and mobility. PROPOSED COMMERCIAL APPLICATION: The proposed wheelchair pushrim will potentially enhance the lives of all manual wheelchair users by reducing impact stresses on the upper extremities during wheelchair propulsion. The FlexRim will interface to most wheelchair wheels and will be sold as a standard wheelchair component or as an optional accessory.

描述（申请人的摘要）：大约 65% 的手册轮椅使用者会经历上肢疼痛或受伤，这可能会导致极大地影响他们的流动性和独立性。研究表明上肢冲击应力之间的关系轮椅推进和上肢损伤。冲击应力发生时手接触推轮，将压力传递到手腕、肘部、和肩膀。目前的推圈技术并不能有效地减少这些冲击应力。 FlexRim 由创新的灵活接口组成推轮和车轮之间，减少与上部相关的冲击应力四肢受伤。在第一阶段，开发了三个 FlexRim 概念并评价。这些概念允许推轮相对于车轮平移，降低冲击力。使用 FlexRim 不会对推进力产生不利影响效率。在第二阶段，FlexRim设计将在第一阶段的基础上进行完善结果。冲击载荷和机械效率的生物力学评估将在匹兹堡人类工程研究实验室进行有15个科目。三十名轮椅使用者将通过一项评估评估 FlexRim 使用期限为三至六个月。因为 FlexRim 减少了冲击应力与上肢损伤有关，它的作用是预防损伤，并保护功能和移动性。拟议的商业应用：所提出的轮椅推轮将通过减少轮椅推进过程中上肢的冲击应力来潜在地提高所有手动轮椅使用者的生活质量。 FlexRim 将与大多数轮椅轮子连接，并将作为标准轮椅组件或可选配件出售。