Catheter Placement Detection System and Method for Surgical Procedures

摘要

In order to increase the accuracy and speed of catheter reconstruction in surgical procedures such as an HDR prostate implant procedure, an automatic tracking system is provided preferably using an electromagnetic tracking device. The system uses a transmitter with a sensor used for catheter position. Due to substantial interference in the electromagnetic field from the surgical table, implant stepper/stabilizer etc, a calibration algorithm using a scattered data interpolation scheme is implemented to correct tracking location errors. The invention includes methods and systems used to carry out the methods.

主权项

1. A method for reconstructing a catheter path in a surgical procedure, the method comprising:
inserting at least one catheter into a target structure of a patient's body, the at least one catheter having a distal end disposed inside the patient's body, a proximal end disposed outside the patient's body, and a catheter lumen extending between the proximal and the distal ends; inserting a sensor into the catheter lumen through the proximal end of the at least one catheter; moving the sensor through the catheter lumen; and tracking the position of the sensor while moving the sensor through the catheter lumen to determine the path.