SBIR Phase II: RFID Tags for Cardiopulmonary Monitoring in Clinical Setting

这项小型企业创新研究（SBIR）第二阶段研究项目将开发一个带有传感器标签的RFID系统。本工作的重点是设计和实现一种定制的CMOS集成电路，其中包含微功率标签上的混合模数电路。生物医学应用是监测包括心肺音在内的生命体征。传感器标签在RFID环境中运行。利用微机电系统技术和CMOS电路在rfid兼容标签上制作优化的传感器。心音以时变波形的形式呈现，并通过算法进行特征提取。微功率设计在整个规划系统中使用。这种带有一次性标签传感器的商业化产品可以取代目前使用的有线传感器的布线丛林，或者对于无线吊舱来说，需要频繁更换电池。该系统提供了非常方便、高成本效益、能够长期使用的患者监测功能，并且不会干扰附近的心脏起搏器。该系统易于应用，是医学生和专家的理想教学工具，可同时向操作员呈现视觉波形和声音。该系统将用于医院、诊所、医疗办公室以及家庭门诊病人。

This Small Business Innovation Reseach (SBIR) Phase II research project will develop an RFID system with sensor tags. This work focuses on design and implementation of a custom CMOS integrated circuit which contains hybrid analog-digital circuits on a micro-power tag. The biomedical application is vital signs monitoring including heart and lung sounds. The sensor tag operates within an RFID environment. Micro-electromechanical systems technology is used to fabricate an optimized sensor together with CMOS circuitry on the RFID-compatible tag. Heart sounds are presented as time-varying waveforms and processed algorithmically for feature extraction. Micro-power designs are used throughout the planned system. The commercialized product with disposable tag sensors can replace the jungle of wiring currently used with direct-wired sensors or, for wireless pods, the need to replace batteries frequently. The system provides a patient monitoring capability that is very convenient, highly-cost effective, capable of chronic use, and does not interfere with nearby heart pacers. The ease of application makes this system ideal as a teaching tool for medical students and specialists with both visual waveforms and sound presented to the operator simultaneously. The system will be used in hospitals, clinics, medical offices, and for outpatients in the home.