System and method for determining sheath location

摘要

A system for determining a location of an instrument within an anatomy is provided. The system can include a first instrument, which can define at least one lumen. The system can further include a second instrument, which can be received through the at least one lumen. The system can include at least one electrode, which can be coupled to a distal end of the first instrument. The electrode can be responsive to electrical activity to generate at least one signal. The system can include a sensing unit, which can be in contact with the anatomy to sense electrical activity within the anatomy at a location near the instrument. The sensing unit can be in communication with the electrode to receive the signal. The system can further include a control module that can determine, based on the sensed electrical activity and the signal, the location of the first instrument.

主权项

1. A system for determining a location of an instrument within an anatomy comprising:
a first instrument navigable within the anatomy that defines at least one lumen, and includes a proximal end and a distal end; a second instrument received through the at least one lumen and navigable within the anatomy relative to the first instrument; at least one electrode coupled to the distal end of the first instrument, wherein the at least one electrode is responsive to electrical activity to generate at least one signal, wherein the at least one electrode includes a first metal portion and a second polymer portion configured to be slit such that the at least one electrode is slittable from around the second instrument, wherein the first metal portion only partially surrounds the first instrument and the second polymer portion is coupled to the first metal portion; a sensing unit to sense electrical activity within the anatomy at a location near the at least one electrode, the sensing unit in communication with the at least one electrode to receive the at least one signal; a control module that determines, based on the sensed electrical activity and the at least one signal, the location of the first instrument.