| 摘要 |
The invasive probe apparatus includes a flexible elongate probe (20) with a distal part adjacent to the distal end for inserting into the body of a patient, this part assumes a predetermined curved form when force is applied to it. Two sensors (28 and 30) are fixed to the distal part in known positions which generate signals in response to the bending of the probe. Signal processing circuitry receives the bend responsive signals and processes them to find the position and orientation co-ordinates of the first sensor to determine the locations of several points along the length of the distal part of the probe. The first sensor has three coils which generate several signals in response to an externally applied magnetic field. |
