#$%^&*AU2011202359A120120119.pdf#####- 18ABSTRACT A method for contact sensing includes transmitting optical radiation from an optical emitter coupled to a distal tip of medical probe that is positioned within a body cavity. A signal, which is indicative of a reflection of the optical radiation from 5 tissue in the body cavity, is received from an optical detector coupled to the distal tip. A quality of contact between the distal tip and the tissue is assessed responsively to the signal. 10 20/05/I 1,19259 speci.doc.181/3 04 Cj qt (D (0 CY) (Y) co 04 C) OD CY) CY) 00 CD CY) 04 00 CV) CY)
