Patent ID: 6142958
Filing Date: 2000-11-07
Classification: A61B,A61M

Abstract:
A sensor and guide wire assembly comprising:a core wire having a distal end, a proximal end, and a plurality of sections of different cross sections and thereby different flexibilities, at least one of said sections having an enlarged portion, said enlarged portion having a sensor receptacle therein;a tube enclosing said core wire over at least a fraction of a length of said core wire such that said core wire extends out from a distal end of said tube, said tube being configured to enable said sensor and guide wire assembly to be inserted into an artery and to be passed to a measurement site inside a body;a sensor mounted in said sensor receptacle of said enlarged portion of said core wire;a first coil arranged to enclose a first portion of said core wire extending out from said distal end of said tube, said first coil being located nearer to said proximal end of said core wire than said sensor; anda second coil arranged to enclose a second portion of said core wire extending out from said distal end of said tube, said second coil being located nearer to said distal end of said core wire than said sensor, each of said first coil and said second coil having an outer diameter that is essentially the same as an outer diameter of said enlarged portion.