Skin Interface Friction Transducer

皮肤界面摩擦传感器

• 批准号: 6690151
• 负责人: Jeffrey Norman Schoess
• 金额: $ 9.83万
• 依托单位: EDEN MEDICAL, INC.
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2005-09-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6690151
• 关键词: bioengineering /biomedical engineering; biomedical equipment development; biosensor device; diabetes mellitus; disease /disorder prevention /control; foot; patient monitoring device; skin ulcer; telemetry

DESCRIPTION (provided by applicant): Korosensor proposes to develop a skin interface friction transducer (SIFT) to prevent skin breakdown in diabetic mellitus patients, which can lead to foot ulceration and lower extremity amputation. The risk of lower extremity amputation is 15 to 46 times higher in diabetics than persons without diabetic mellitus, with the vast majority of diabetic foot complications resulting in amputation due to formation of skin ulcers. Many of these patients experience loss or complete absence of protective skin sensation (i.e. excessive rubbing, redness and swelling, excessive pressure) due to peripheral neuropathy. When a lack of sensation is coupled with abnormal pressure, a foot ulcer can form. Many of these ulcerous problems can be prevented if artificial sensing is developed to complement a patient's sensory response to alert the patient the potential exists for skin breakdown and damage. The proposed Phase I project will establish the technical and commercial feasibility of developing a skin interface friction transducer that can detect the 'stick-slip' condition in diabetic patients. A low-profile polymer sensor pad incorporating SIFT will be fabricated with several ridge elements and inserted into footwear. A series of ridges will be replicated in the sensor pad to emulate the epidermal features of human skin. Each element will be designed to sense dual-use forces, the normal (i.e. perpendicular) force, FN and tangential forces (FT) at the foot surface. The coefficient of friction will be determined. The sensor pad will be designed to promote patient self-care, informing the patient, through wireless RF telemetry of diabetic foot condition.

描述（由申请人提供）： Korosensor提出开发一种皮肤界面摩擦传感器（SIFT），以防止糖尿病患者的皮肤破裂，这可能导致足部溃疡和下肢截肢。糖尿病患者下肢截肢的风险比非糖尿病患者高15至46倍，绝大多数糖尿病足并发症由于皮肤溃疡的形成而导致截肢。这些患者中的许多人由于周围神经病变而经历保护性皮肤感觉的丧失或完全缺失（即过度摩擦、红肿、过度压力）。当缺乏感觉加上不正常的压力，足部溃疡可以形成。如果开发人工传感来补充患者的感觉反应以警告患者存在皮肤破裂和损伤的可能性，则可以预防这些溃疡问题中的许多。拟议的第一阶段项目将确定开发皮肤界面摩擦传感器的技术和商业可行性，该传感器可以检测糖尿病患者的“粘滑”状况。一个低轮廓的聚合物传感器垫纳入SIFT将与几个脊元件和插入到鞋类。一系列的脊将被复制在传感器垫中，以模仿人类皮肤的表皮特征。每个元件将被设计为感测双重使用力，即脚表面处的法向（即垂直）力、FN和切向力（FT）。将确定摩擦系数。传感器垫的设计旨在促进患者自我护理，通过无线RF遥测告知患者糖尿病足状况。