OPTICAL SYSTEM AND METHOD FOR LOCALIZING THE FOSSA OVALIS DURING TRANS-SEPTAL PROCEDURES

摘要

A system and method for identifying the location of a medical device (42) within a patient's body may be used to localize the fossa ovalis for trans -septal procedures. The systems and methods measure light reflected by tissues encountered by an optical array. An optical array (44) detects characteristic wavelengths of tissues that are different distances from the optical array. The reflectance of different wavelengths of light at different distances from an optical array may be used to identify the types of tissue encountered, including oxygenated blood in the left atrium as detected from the right atrium through the fossa ovalis.