Catheter system with working portion radially expandable upon rotation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 23, 2002
Grant Date -
N/A
app pub date -
May 19, 2000
filing date -
May 19, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A catheter system is formed of a two-lumen rotatable shaft with a working tube extending through one of the lumens and an energy emitting element coupled to the other lumen. Rotation and movement distally of the rotatable shaft, coils the energy emitting element and expands the overall profile of the catheter system. Energy emitted through the coiled energy emitting element provides circular lesions for circumferential treatment on desired tissue. Counter rotating and retracting of the rotatable shaft returns the catheter system to a sleek profile for removal of the catheter system from the biological vessel area. A light diffusing tip with reflective sheath is utilized as the energy emitting element and focuses energy on the target tissue and away from surrounding blood pool.
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