William B. Smith,Nelson S. Slavik,Michael H. Linse
申请号：
US14082114
公开号：
US20150141806A1
申请日:
2013.11.16
申请国别(地区):
US
年份:
2015
代理人:
摘要：
The present invention provides a method of detection of metallic items and/or metallic surgical instruments or articles by a detection device in the event that such articles have been retained in a patient after a surgical procedure. More specifically, the invention relates to a detection system that uses (1) a metal detector or (2) a detector for harmonic-generating amorphous or non-amorphous metallic tags together with three-dimensional spatial position measurement to determine if a foreign metallic article has been retained in the body and if so, to determine the articles location. The invention scans the patient pre- and post-operatively, evaluating three-dimensional differences in electronic response to account for other nearby metallic objects not related to the retained metallic article, thereby determining by inference whether the post-operative electronic response results from presence of a retained article.
