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...http://www.google.ca/patents/US6336906?utm_source=gb-gplus-sharePatent US6336906 - Sensor and guide wire assembly
