A system for detecting the position of an object within a body of biological tissue includes a resonant circuit attached to the object and a probe including a receiver/transmitter that operates at the resonant frequency of the object. The resonant circuit rings in response to pulses transmitted from the probe thereby activating receiver circuits which control a visual display indicating the direction the probe should be moved to center it over the object. When the object is centered a second visual display provides confirmation.
申请公布号
US5325873(A)
申请公布日期
1994.07.05
申请号
US19920917259
申请日期
1992.07.23
申请人
ABBOTT LABORATORIES;WHITE'S ELECTRONICS, INC.
发明人
HIRSCHI, RICHARD E.;KARBOWSKI, JAMES P.;TIEFENTHAL, JAMES L.;ISAAC, RONALD M.