Interface Materials for Patients with Limb Amputation

适用于截肢患者的界面材料

基本信息

批准号：
8677611
负责人：
Joan E. Sanders
金额：
$ 30.21万
依托单位：
UNIVERSITY OF WASHINGTON
依托单位国家：
美国
项目类别：
财政年份：
2010
资助国家：
美国
起止时间：
2010-08-15 至 2016-06-30
项目状态：
已结题

项目摘要

DESCRIPTION (provided by applicant): The long-term goal of this project is the improved prescription and design of interface liner materials for patients with limb amputation so as to create prostheses that are mechanically stable and resist soft tissue injury during ambulation. The specific aims are to develop a suite of testing systems to evaluate commercially available interface liners, interpret the results, and communicate to practitioners how these different liners affect skin mechanics, limb- socket stability, and limb temperature. The developed suite should quickly and easily allow practitioners to evaluate materials for use with their patients and assist them in making informed decisions based upon the best available scientific evidence and mechanical testing data. Key features include properties of new prosthetic liners and to what degree the liners change their mechanical performance over time with continual and typical use. These material performance data are placed within a clinically relevant framework for evaluation and prescription. Further, development of this suite will allow continued provision of this service at a low cost well beyond the funding period. To achieve the aims, custom instrumentation is developed to test liners specifically for limb prosthetics application. The materials are tested for their abilities to provide: cushioning; prosthetic suspension; skin adherence; volume change accommodation; breathability; thermal conductivity; and durability. Both new liners and those used by patients for up to nine months are tested. Both conventional liners and "smart" liners, which change their properties upon an applied voltage or force, are tested. Biomechanical models are implemented to compare limb-socket interface mechanics, limb-socket stability, and thermal stresses on the residual limb for different liners during patient use. The data are then incorporated into a clear and easy-to- understand format presentation for use by practitioners, patients, researchers, and industry. The health relatedness of this application is an evaluation and dissemination strategy that has widespread use in rehabilitation treatment. Quantitative material data are presented in a clinically relevant format to improve amputee patient care and health-related quality of life. Liner selection and prescription should be enhanced, reducing the occurrence of skin breakdown and injury to persons with limb amputation. Further, this research will help to specify quantitative engineering needs of future liners. Potentially, the efforts described in the proposed application can be extended to other areas where the selection of the skin interface is of clinical importance, including wheelchair seating, footwear, insoles and orthotic devices.

描述（由申请人提供）：该项目的长期目标是改善肢体截肢患者的界面衬里材料的处方和设计，以创建机械稳定并在移动过程中抵抗软组织损伤的假体。具体目的是开发一套测试系统来评估市售的接口衬里，解释结果并与从业者交流这些不同的衬里如何影响皮肤力学，肢体插座稳定性和肢体温度。开发的套件应迅速而轻松地允许从业人员评估与患者一起使用的材料，并协助他们根据最佳可用科学证据和机械测试数据做出明智的决定。关键功能包括新的假肢衬里的特性，以及衬里随着时间的推移而持续且典型的使用，其范围会在多大程度上改变其机械性能。这些材料性能数据置于临床相关的评估和处方框架内。此外，此套房的开发将允许以低成本的价格继续提供这项服务。为了实现目标，开发了定制仪器来测试专门针对肢体假体应用程序的衬里。对材料的提供能力进行了测试：缓冲；假肢暂停；皮肤依从性；音量更改住宿；透气性；导热率；和耐用性。测试了新的衬里和患者长达九个月的班轮。测试了传统的衬里和“智能”衬里，它们在应用电压或力时会改变其性质。实施了生物力学模型，以比较肢体插入界面力学，肢体插槽稳定性以及残留肢体的热应力，用于不同的衬里。然后将数据纳入清晰易理解的格式演示中，以供从业人员，患者，研究人员和行业使用。该应用的健康相关性是一种评估和传播策略，在康复治疗中广泛使用。定量材料数据以临床相关的格式介绍，以改善截肢者患者护理和与健康相关的生活质量。应该增强衬里的选择和处方，从而减少对肢体截肢者的皮肤破裂和损伤的发生。此外，这项研究将有助于指定未来班轮的定量工程需求。可能的是，提议的应用中所描述的努力可以扩展到其他领域选择临床重要性的区域，包括轮椅座椅，鞋类，鞋垫，鞋垫和矫形器件。