Patent ID: 8380289
Filing Date: 2013-02-19
Classification: A61B

Abstract:
1. A medical device locating system for determining disposition of a sensor coil in a subject, said system comprising: a. an array of three or more triplet drive coil sets, each drive coil set including at least three orthogonally arranged discrete drive coils, each of the discrete drive coils being electromagnetic coils; b. at least one sensor coil; c. a first system component that provides AC drive signals energizing said discrete drive coils; d. a second system component for sequentially energizing said discrete drive coils singly then as virtual pairs or virtual triplets and measuring the resulting single and virtual sensor coil response signals; e. a computing component for calculating sensor coil disposition in the subject relative to said triplet drive coil sets from one or more measured resulting sensor coil response signals.