SYSTEMS AND METHODS FOR POSITIONING AN ELONGATE MEMBER INSIDE A BODY

摘要

Systems and methods for introducing and driving flexible members in a patient's body are described herein. In one embodiment, a robotic method includes positioning a flexible elongated member that has a preformed configuration, wherein at least a part of the flexible elongated member has a first member disposed around it, and wherein the first member includes a first wire for bending the first member or for maintaining the first member in a bent configuration, releasing at least some tension in the first wire to relax the first member, and advancing the first member distally relative to the flexible elongated member while the first member is in a relaxed configuration.

主权项

1. A method for robotically navigating first and second coaxial elongate members into a target anatomy of a patient, the method comprising:
advancing the first elongate member toward the target anatomy; advancing the second elongate member over a distal tip of the first elongate member; applying tension to one or more pullwires to articulate a distal tip of the second elongate member to direct the distal tip of the first elongate member toward the target anatomy; advancing the distal tip of the first elongate member into the target anatomy; advancing the second elongate member over the first elongate member; and releasing the tension on the one or more pullwires of the second elongate member while advancing the second elongate member into the target anatomy.