DOUBLE THREADED GUIDANCE OR STIFFENING WIRE FOR MULTIPLE USE VERTEBRAL AUGMENTATION (VA) BALLOON

摘要

A catheter device that includes a double-threaded guidance wire that allows multiple use of a compliant cavity creation device (i.e., treatment of more than one level). The double-threaded guidance wire may be connected with the luer part of the device and a distal part of the balloon using a threaded engagement to avoid lengthening of the inner tube, avoid lengthening of the balloon, and to limit the plastic deformation of the system in axial direction. In other implementations, the double-threaded guidance wire may be reconnected to the distal part of the balloon with a distal thread of the double-threaded guidance wire in order to restore the nominal length.

主权项

1. A reusable tool, comprising:
a handle having a proximal thread; a catheter structure having an outer body and an inner body, the outer body being connected to the handle; an expandable structure connected to the outer body, the expandable structure having a distal thread affixed within an interior thereof; and a guidance wire disposed within the inner body, the guidance wire having a first threaded portion adapted to engage the proximal thread and a second threaded portion adapted to engage the distal thread.