A high speed pressure mapping system for non-invasive force distribution characterization

用于非侵入性力分布表征的高速压力绘图系统

• 批准号: RTI-2023-00175
• 负责人: Fewster, Kayla
• 金额: $ 5.57万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=757934
• 关键词: speed; pressure; mapping; system; non

Individuals live an average of 36 years with a musculoskeletal injury, the longest-lasting health impact of any disease. This makes the identification of injury initiation and, ultimately, the prevention of these injuries crucial for Canadians and all industrialized nations. A primary goal of our research team is to evaluate tissue injury in response to high-loading exposures. Force measurement during physiological acute loading exposures provides insight into the applied loads and how injuries or disease initiate; however, a significant barrier exists in the ability to map areas of applied load and document specific areas of high force concentration linking to injury progression. Pressure mapping technology is a noninvasive technique that utilizes a thin, flexible sensor to measure the interface pressure between two surfaces. These sensors can reveal unique information regarding force distributions across a region of interest rather than a traditional gross force measurement through a single load cell. Until recently, pressure mapping techniques have been mainly limited to investigations surrounding comfort and low-level loading scenarios. Significant pressure sampling rate limitations have made this technology unusable during high-rate loading events. Substantial advances in pressure mapping technology have recently been made, including increased high-speed sampling rates and improved spatial resolution. Thus, making these devices a promising option for evaluating injury mechanisms during high-rate loading events. As such, this RTI proposal is requesting funds for a versatile, high-speed pressure mapping system with pressure sampling rates up to 20 kHz. This system consists of one 8-port hub, with the ability to connect eight different pressure handles, with each handle connecting to a pressure mapping sensor. The proposed equipment is crucial to the work of at least six investigators at UBC requiring access to rapid pressure mapping during high-rate loading events. The system will provide the ability to rapidly experiment with pressure mapping to refine fundamental force tracing linking to tissue injury and injury mechanics. The successful acquisition of the requested high-speed pressure mapping system will support quantitative injury characterization and assessment for injury prevention strategies as well as enabling further understanding of the mechanics surrounding lumbar spine injury, knee osteoarthritis and neural disorders. Over it's lifetime, the proposed equipment will enable training opportunities for approximately 90 highly qualified personnel, including graduate and undergraduate students. Students will receive training in biomechanical design, experimental research and engage in multi-disciplinary collaborations with clinical and industry partners. Industry, health care and government policy require these critical skills for designing and developing new injury prevention and clinical management processes.

患有肌肉骨骼损伤的人平均寿命为36年，这是任何疾病中持续时间最长的健康影响。这使得识别伤害的开始，并最终预防这些伤害对加拿大人和所有工业化国家至关重要。我们研究团队的主要目标是评估高负荷暴露对组织的损伤。生理急性负荷暴露期间的力测量提供了对所施加的负荷以及损伤或疾病如何开始的洞察;然而，在绘制所施加负荷的区域和记录与损伤进展相关的高力集中的特定区域的能力方面存在重大障碍。压力映射技术是一种非侵入性技术，它利用薄的柔性传感器来测量两个表面之间的界面压力。这些传感器可以揭示关于感兴趣区域上的力分布的独特信息，而不是通过单个测压元件进行的传统总力测量。直到最近，压力映射技术一直主要限于调查周围的舒适性和低水平的负载情况。显著的压力采样率限制使得该技术在高速率加载事件期间不可用。最近在压力绘图技术方面取得了重大进展，包括高速采样率的提高和空间分辨率的提高。因此，使这些设备的一个有前途的选择，在高速率加载事件的损伤机制进行评估。因此，该RTI提案要求为一个多功能的高速压力测绘系统提供资金，压力采样率高达20 kHz。该系统由一个8端口集线器组成，能够连接8个不同的压力手柄，每个手柄连接到一个压力映射传感器。拟议的设备对于UBC至少六名调查人员的工作至关重要，他们需要在高速率加载事件期间获得快速压力映射。该系统将提供快速进行压力映射实验的能力，以完善与组织损伤和损伤力学相关的基本力跟踪。成功获得所要求的高速压力标测系统将支持定量损伤表征和评估，以制定损伤预防策略，并进一步了解腰椎损伤、膝关节骨关节炎和神经疾病的力学机制。在其使用寿命期间，拟议的设备将为大约90名高素质人员提供培训机会，包括研究生和本科生。学生将接受生物力学设计，实验研究方面的培训，并与临床和行业合作伙伴进行多学科合作。工业、医疗保健和政府政策需要这些关键技能来设计和开发新的伤害预防和临床管理流程。