题目/Title：Low-power SoC design for Ligament Balance Measuring System in Total Knee Arthroplasty

作者/Author：
                        Ming Liu,Hong Chen,Xu Zhang,Chun Zhang,Hanjun Jiang,Zhihua Wang

会议/Conference：EMBC 2011

地点/Location：Boston, Massachusetts USA

年份/Issue Date：2011.30 Aug.-3 Sept.

页码/pages：pp. 5860 – 5863

摘要/Abstract：
A design of a low-power wireless System-on-Chip (SoC) for the Ligament Balance Measuring System (LBMS) in Total Knee Arthroplasty (TKA) is presented in this paper. It includes a signal conditioning circuit that can support up to 15 force sensors, a 433MHz RF front-end for data transmission, an 8-bit low-power microprocessor, and a FIFO with a digital filter. Idle and wake-up modes are well designed to reduce the power consumption since the device should be used for the whole surgical procedure. Test results show that the signal conditioning circuit with 16-bit single line output can operate under a wide voltage range, which is from 1.2V to 3.6V. The minimal power consumption is 139μ.W@1.2V with a 200KHz clock. Experimental results demonstrated in static and body tests are given in the paper also. The chip will be used in an aided monitoring system for Total Knee Arthroplasty in the future work.