Locatable catheter

摘要

A catheter having a sensor at a distal end thereof, useable to detect and create signals from an electromagnetic field. The sensor is constructed and arranged to leave a lumen of the catheter open such that it may be used to pass instruments therethrough once a target location has been reached.

主权项

1. A locatable medical instrument insertable through a working channel of a bronchoscope, comprising:
a sheath having at least three coils embedded therein, the at least three coils overlying one another and having a common center point, and each of the at least three coils is integrally formed within a wall defining a longitudinal lumen extending through the sheath, wherein each of the at least three coils is configured to generate a signal when placed in an electromagnetic field, the signal indicative of a strength of the electromagnetic field and the position of the sheath; and wherein two of the at least three coils are approximately perpendicular to each other.