METHOD AND SYSTEM FOR NAVIGATING A CATHETER PROBE IN THE PRESENCE OF FIELD-INFLUENCING OBJECTS
摘要
A system for and method of determining and compensating for the effect of a field influencing object on a field sensor, preferably a coil, that is within a navigational domain. The navigational domain contains navigational magnetic energy and disturbing magnetic energy, and the field influencing object produces the disturbing magnetic energy in response to the navigational magnetic energy. The correction system includes a first transmitter for projecting into the navigational domain field energy in a first waveform sufficient to induce a first signal value in the sensing coil. The system also includes a second transmitter for projecting into the navigational domain field energy in a second waveform sufficient to induce a second signal value in the sensing coil. The system further includes a signal processor for receiving the second signal value to determine the effect of the electrically conductive object on the field sensor.
申请公布号
WO0130256(A9)
申请公布日期
2002.07.04
申请号
WO2000US29721
申请日期
2000.10.27
申请人
WINCHESTER DEVELOPMENT ASSOCIATES;ENTERPRISE MEDICAL TECHNOLOGY, INC.;MARTINELLI, MICHAEL, A.;KESSMAN, PAUL;JASCOB, BRAD