Patent ID: 7742805
Filing Date: 2010-06-22
Classification: A61B

Abstract:
1. A catheter comprising: a first optical channel extending between a proximal and distal portion of the catheter; a second optical channel extending between the proximal and distal portions of the catheter, the second optical channel being separate from the first optical channel; a first beam redirector in optical communication with the first optical channel, the first beam redirector comprising a first stage and a second stage; and a second beam redirector in optical communication with the second optical channel, the second beam redirector comprising a third stage and a fourth stage, wherein the first stage is configured to receive a light beam from the first optical channel and to change a propagation direction of the light beam by refracting the light beam at a first non-zero angle with respect to an axis of the first optical channel; and wherein the second stage is configured to receive the refracted light beam and to change a propagation direction of the refracted light beam by redirecting the refracted light beam at a second non-zero angle with respect to the axis of the first optical channel, the second angle being greater than the first angle.