Hollow guide wire apparatus for catheters

European Patent Office Patent

APP PUB NO EP-0778040-A2
SERIAL NO

96119453

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Abstract

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A catheter guide wire includes an elongate tubularbody about which a catheter may be threaded for guidanceto a target location in a vasculature passageway of abody. The elongate body includes a proximal end and adistal end, with the distal end being curved. Cuts areformed either by saw-cutting, laser cutting or etchingat spaced-apart locations along the length of the bodyto increase its lateral flexibility, while maintainingits rotational torquability. At least some of the cutsextend through the tubular body to the interior cavityto allow the escape of fluids flowing in the cavity.The distal end of the tubular body includes a sufficientnumber of cuts to make it more flexible than theremainder of the body.

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