A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
326/12, 128/2, 3
A61B 17/22 (2006.01) A61B 1/00 (2006.01) A61B 10/00 (2006.01)
Patent
CA 1317641
ABSTRACT OF THE DISCLOSURE A laser catheter for diagnosis of tissue comprises a catheter having a proximal end and a distal end with a fixed cross-sectional area. An optical conductor extends through the catheter and has a proximal end and a distal end. A laser is coupled to the proximal end of the conductor such that light is directed onto the tissue to induce fluorescence without the presence of a fluorescence enhancing agent. A rigid optical shield is mounted on the distal end of the catheter for providing an optically transparent enclosure over the entire cross-sectional area of the distal end of the catheter. The shield has a distal surface positioned at a fixed distance from the distal end of the optical conductor that directly contacts the tissue to be diagnosed such that light emitted by fluorescing tissue is directed through the shield and the conductor to the proximal end of the catheter.
615649
Cothren Robert M. Jr.
de Los Santos-Pacheco Cynthia
Feld Michael S.
Hayes Gary B.
Kenny Leo T.
Massachusetts Institute Of Technology
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
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