Electromagnetic health monitoring of BSCC prosthetic heart valves

摘要：

Prosthetic heart valves of the Bjork-Shiley Convexo-Concave (BSCC) type have long been used extensively in implants; however, there have been reports of cases where one component of the valves failed, leading to the demise of the patient. This paper presents a new method for noninvasive electromagnetic evaluation for this type of valve, using an eddy current transducer with orthogonal coils. In vitro experiments have shown that discontinuities of outlet strut with depths equal or larger than 0.4mm can be detected with a probability of detection (POD) of 86.4%, and in the case of discontinuities with depth equal or larger than 0.6mm with POD of 97%.

关键词： BSCC valve health monitoring electromagnetic method

作者: Raimond GRIMBERG Shiu C.CHAN Adriana SAVIN Rozina STEIGMANN Alina BRUMA Lalita UDPA Satish S.UDPA

作者单位: Nondestructive Testing Department, National Institute of R&D for Technical Physics,47 D.Mangeron Blv College of Engineering, Michigan State University, 2120 Engineering Building,East Lansing, MI 48824 College of Engineering, Michigan State University, 2120 Engineering Building,East Lansing, MI 48824

会议类型: 国际会议

会议名称: 第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)

会议地点: 上海

会议语种:英文

页码: 2118-2125

在线出版日期: 2008-10-25（万方平台首次上网日期，不代表论文的发表时间）