Inexpensive Foot Digitizing Device for Diabetic Footware

用于糖尿病足用品的廉价足部数字化设备

• 批准号: 7109205
• 负责人: JOSEPH L LOOMIS
• 金额: $ 39.33万
• 依托单位: DIAPEDIA, LLC
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7109205
• 关键词: amputation; bioimaging /biomedical imaging; biomechanics; biomedical equipment development; clinical research; computer system design /evaluation; computer system hardware; diabetes mellitus; digital imaging; disease /disorder prevention /control; foot; human subject; image processing; orthotics; questionnaires; skin ulcer; three dimensional imaging /topography

DESCRIPTION (provided by applicant): The design and manufacture of custom insoles using CAD/CAM has the potential to revolutionize the care of diabetic patients at risk for foot ulceration, thereby preventing amputations. Using this approach, individualization of orthotics could become much more precise, consistent & less expensive than utilizing the still usual handcrafting. Several companies have developed such systems & for each the accurate measurement of foot shape is critical. Existing approaches use sophisticated digitizing machines to capture foot geometry and CAD/CAM to create insoles. These systems are very costly, & a significant portion of this cost is due to the foot digitizing devices. The objective of this revised proposal is to develop and bring to market an inexpensive device, the Haptic Lens, to capture the three-dimensional shape of the plantar surface of the foot. The major strengths of the proposed design are high resolution, low cost, & simplicity, which will make it accessible for use in small clinics & offices. In phase I of this study we have developed a second generation prototype of the Haptic Lens, written software to acquire and process the data, and used optimization methods to show promising results for the accuracy and repeatability. In this proposed phase II we will refine this prototype and accompanying software, reduce its cost, and prepare it for market. Specifically, we will optimize membrane safety and stiffness, add internal calibration, robust packaging, subject stabilization devices, and applied load measurement. The software will be refined to add automatic calibration, operator preview, faster execution, automatic image processing, and output that can easily be integrated into the CAD-CAM footwear algorithms. Performance will be defined through accuracy tests on objects of known geometry & on human feet. We will also develop operator training protocols and web-based instructions. This project is a critical part of an overall effort at DIApedia to design an orthotic system for at-risk diabetic patients that is based on clear scientifically supported design algorithms.

描述（由申请人提供）：使用CAD/CAM的定制鞋垫的设计和制造有可能彻底改变患有足部溃疡风险的糖尿病患者的护理，从而防止截肢。使用这种方法，矫形器的个性化可能会比使用静止的手工制作更精确，一致和便宜。几家公司已经开发了这样的系统，并且对于每个公司的准确测量，脚形成至关重要。现有方法使用复杂的数字化机器来捕获脚的几何形状和CAD/CAM来创建鞋垫。这些系统非常昂贵，并且这一成本的很大一部分是由于脚数字化设备所致。这项修订的建议的目的是开发并将廉价设备（触觉镜头）销售，以捕获脚足底的三维形状。拟议设计的主要优势是高分辨率，低成本和简单性，这将使在小型诊所和办公室使用。在这项研究的第一阶段，我们开发了触觉镜头的第二代原型，书面软件以获取和处理数据，并使用优化方法来显示出令人鼓舞的结果，以获得准确性和可重复性。在拟议的第二阶段，我们将完善该原型和随附的软件，降低其成本并为市场做准备。具体而言，我们将优化膜的安全性和刚度，增加内部校准，健壮的包装，受试者稳定设备以及施加的负载测量。该软件将进行完善，以添加自动校准，操作员预览，更快的执行，自动图像处理以及可以轻松集成到CAD-CAM鞋类算法中的输出。将通过对已知几何和人脚上对象的准确测试来定义性能。我们还将开发操作员培训协议和基于Web的说明。该项目是Diapedia整体努力的关键部分，以设计一种基于明确的科学支持的设计算法的高危糖尿病患者的矫形系统。