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A sensor and guide wire assembly includes 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 the core wire sections has an enlarged portion with a sensor receptacle therein. The assembly also i

A sensor and guide wire assembly includes 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 the core wire sections has an enlarged portion with a sensor receptacle therein. The assembly also includes a tube that encloses the core wire over at least a fraction of its length such that the core wire extends out from a distal end of the tube. The tube is configured to enable the sensor and guide wire assembly to be inserted into an artery and to be passed to a measurement site inside a patient's body. The assembly further includes a sensor mounted in the sensor receptacle of the enlarged portion of the core wire. A first coil is arranged to enclose a first portion of the core wire extending out from the distal end of the tube, and the first coil is located nearer to the proximal end of the core wire than the sensor. A second coil is arranged to enclose a second portion of the core wire extending out from the distal end of the tube. The second coil is located nearer to the distal end of the core wire than the sensor.

대표청구항 ▼

[ We claim:] [1.] 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

[ We claim:] [1.] 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.