INSERTABLE MEDICAL DEVICE SYSTEM WITH PLAQUE TREATMENT PORTION AND METHODS OF USING

摘要

The disclosure provides plaque treatment catheter assemblies for the treatment of arterial plaques and removal of clots. One assembly includes a second catheter tube movable within a first catheter tube, and an expansion member movable within the second tube. The second catheter tube has one or more distally-disposed and outwardly-expandable plaque treatment portion(s). Another assembly includes a catheter tube and at least one channel(s) within the catheter. The channel includes an elongate member with a distally-disposed plaque scoring or clot retrieval member. Optionally, the assembly includes an expandable member that can cause movement of the scoring member.

主权项

1. A plaque treatment catheter assembly comprising:
a first catheter tube having an inner and outer diameter and capable of being inserted within the vasculature; a second catheter tube having an inner and outer diameter, the outer diameter of the second catheter tube being smaller than the inner diameter of the first catheter tube and capable of moving within and out of the first catheter tube, the second catheter tube having a distal portion comprising one or more plaque treatment portion(s) on an outer surface of the second catheter tube, wherein the all of the catheter tube or a portion of the second catheter tube including the one or more plaque treatment portion(s) is capable of outward expansion in response to force of an outer surface of an expansion member; and an expansion member movable within and out of the inner diameter of the second catheter tube when in a contracted state.