A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/127
A61M 25/01 (2006.01)
Patent
CA 2008267
ABSTRACT OF THE DISCLOSURE This invention relates to an improved guide wire which is steerable, (i.e., torquable without whipping) at lengths of up to approximately 13 ft. while still being flexible enough to negotiate anatomical bends. The invention also relates to a method of utilizing such guide wire in conjunction with the viewing properties of an endoscope to reach certain gastrointestinal sites, thereby permitting selected medical procedures to be performed. More particularly, the improved guide wire of this invention has a solid metal core wire with a tapered distal end and a braided mesh applied under tension over the core wire along its entire length. The mesh may be attached to core wire at one or more selected points along the wire, and a coating of a low lubricity material may be applied to the outside of the mesh. The method is practiced by moving an endoscope through a body channel to position the endoscope adjacent a desired duct or other opening. A steerable guide wire such as a guide wire of this invention is then advanced through a channel in the endoscope and out an opening in the distal end thereof. The optical properties of the endoscope are then utilized to manually manipulate the wire into the duct. A catheter may be moved over the guide wire into the duct and utilized in performing the desired medical procedure.
Macmore Bruce
Stern David
Bard (c.r.) Inc.
Macmore Bruce
Stern David
Swabey Ogilvy Renault
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