SYSTEMS AND METHODS FOR REMOVING OBSTRUCTIVE MATTER FROM BODY LUMENS AND TREATING VASCULAR DEFECTS

摘要

A catheter system can be used to remove obstructions, deliver implantable devices or substances, and/or restore flow through body lumens. The system can include an outer shaft having a lumen, sidewall, and a longitudinal window in the sidewall, an inner shaft disposed within the lumen, and an expandable member having a first end coupled to the outer shaft and a second end coupled to the inner shaft through the window. The expandable member can be positioned adjacent to a target region while in the collapsed configuration. The expandable member can be expanded to an expanded configuration by relative movement of the outer shaft and the inner shaft.

主权项

1. A method for increasing flow of a body fluid through an obstructed body lumen, the method comprising:
inserting a catheter system into the body lumen in a collapsed configuration, the system comprising (i) an outer shaft having a lumen, sidewall, and a longitudinal window in the sidewall, (ii) an inner shaft disposed within the lumen, and (iii) an expandable member having a first end coupled to the outer shaft and a second end coupled to the inner shaft through the window; positioning the expandable member adjacent to a target region while in the collapsed configuration; and expanding the expandable member from the collapsed configuration to an expanded configuration by relative movement of the outer shaft and the inner shaft.