Smart textile sensing for prosthetic fit monitoring**

假肢的舒适性、功能和维护的关键因素是残肢和装置之间的承窝界面。作为残肢和假肢之间的机械接口，接受腔分配承重载荷，传递关节运动，并向用户提供触觉反馈。由受过训练的假肢专家形成的单个残肢，插座基本上是静态的形式。适当界面配合的挑战是由多种因素（例如，萎缩、炎症、液体潴留），这可能导致并发症（例如，功能减退、疼痛、压疮、水肿）。*缺乏可用的工具来测量和监测接口适配。目前使用压敏膜的方法受到有限数量的感测位置、低可定制性、传感器信号漂移和高成本的限制。拟议研究的范围是开发和测试一种智能纺织袜，能够测量和监测经胫骨假肢用户的承窝配合。该项目包括研发活动，以：1）使用现有的智能纺织品原型技术生成插座适配传感器原型，2）系统的台架测试，以评估传感器的有效性和可靠性。该研究的直接成果包括智能纺织品的系统原型，以感测插座配合，一系列模拟的幻肢，以系统地和可重复地测试原型，以及测试数据，以支持技术文档和临床前认证（例如，加拿大卫生部）。除了为截肢者和假肢专家提供新的工具以改善假肢的功能和舒适度外，拟议研究的成果将有助于开发新产品，以减少假肢使用的并发症和相关的医疗保健费用。

A critical factor in comfort, functioning, and maintenance of prosthetics is the socket interface between the residual limb and device. As the mechanical interface between the residual limb and prosthetic, sockets distribute weight-bearing loads, transmit joint movements, and deliver tactile feedback to the user. Formed to individual residual limbs by trained prosthetists, sockets are essentially static forms. A challenge to proper interface fit is residual limb volume change over short- and long-term periods arising from multiple factors (e.g., atrophy, inflammation, fluid retention), which can lead to complications (e.g., reduced functionality, pain, pressure ulcers, edema).****There is the lack of available tools to measure and monitor interface fit. Current methods using pressure-sensitive films are limited by a finite number of sensing locations, low customizability, sensor signal drift, and high costs. The scope of the proposed research is to develop and test a smart textile sock capable of measuring and monitoring socket fit for transtibial prosthetics users. The project encompasses R&D activities to: 1) generate socket fit sensor prototypes using available smart textile prototyping technologies, and 2) systematic bench testing to evaluate sensor validity and reliability.****Direct outcomes of the research includes system prototypes of a smart textile to sense socket fit, a series of simulated phantom residual limbs to systematically and reproducibly test prototypes, and test data to support technical documentation and pre-clinical certification (e.g., Health Canada). In addition to delivering new tools for amputees and prosthetists to improve the function and comfort of prostheses, the outcomes of the proposed research will contribute to developing new products to reduce complications with prosthetic use and associated health care costs.