Guidewire system
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United States of America Patent
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Aug 6, 2002
Issued Date -
N/A
app pub date -
Dec 22, 1999
filing date -
Dec 7, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A catheter guidewire includes an elongate solid body about which a catheter may be threaded for guidance to a target location in a vasculature passageway of a body. The elongate body includes a proximal end and a distal end, with the distal end being curved. Cuts are formed either by saw-cutting, laser cutting or etching at spaced-apart locations along the length of the body to increase its lateral flexibility. Integral beams are also formed within the body to maintain its torsional strength. The relative location and size of cuts and beams may be selectively adjusted so as to control the direction and degree of flexure, and the change in torsional stiffness relative to flexibility.
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