Endoscope structures and techniques for navigating to a target in branched structure
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United States of America Patent
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Jun 19, 2007
Grant Date -
Dec 9, 2004
app pub date -
Apr 16, 2003
filing date -
Apr 17, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and methods employing a small guage steerable catheter (30) including a locatable guide (32) with a sheath (40), particularly as an enhancement to a bronchoscope (14). A typical procedure is as follows. The location of a target in a reference coordinate system is detected or imported. The catheter (30) is navigated to the target which tracking the distal tip (34) of the guide (32) in the reference coordinate system. Insertion of the catheter is typically via a working channel of a convention bronchoscope. Once the tip of the catheter is positioned at the target, the guide (32) is withdrawn, leaving the sheath (40) secured in place. The sheath (40) is then used as a guide channel to direct a medical tool to target.
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