Patent ID: 8469955
Filing Date: 2013-06-25
Classification: A61B,C08L

Abstract:
1. A tissue-separating catheter assembly comprising: a rotatable shaft having a distal shaft portion, the distal shalt portion comprising a distally-facing transition surface at a proximal end of the distal shaft portion, the transition surface having a diameter larger than the diameter of the shaft distal the transition surface; a tissue separator device extending along the shalt and having a distal separator part at the distal shaft portion movable between a refracted state, towards the distal shaft portion, and an outwardly extending, operational state, away from the distal shalt portion; the distal separator part having a distal separator end; and a pivot joint pivotally connecting the distal separator end to the distal shaft portion so that said distal separator end effectively pivots freely at the pivot joint as the distal separator part moves between the retracted and operational states; and at least one energizable tissue separator element located solely within the transition surface, the at least one energizable tissue separator element being adapted to aid movement of the distal shaft portion through tissue and to a target site.