Abstract: A catheter for selective administration of a compound.

Abstract: A collector for propagating incident radiation to a remote location. The collector comprises, a light directing component coupled to a buffer component, a first propagation component coupled to the buffer component and configured to transmit the incident radiation into a collector region through one of a plurality of windows, and an optical transport assembly coupled to an end of the collector region and having a second propagation component. Each light directing component is configured to redirect the incident radiation from a first direction to a second direction, and the collector region includes a plurality of regions exhibiting a refractive index value that gradually transitions from about 1.5 to about 2.0. The second propagation component is further configured to retain the incident radiation.

Abstract: The present invention includes a radiation collector configured to collect incident radiation. The radiation collector includes a radiation directing component configured to redirect the incident radiation, a buffer component configured to receive the radiation redirected by the radiation directing component, and a propagation component configured to receive the radiation from the buffer component and to propagate the radiation towards a first end of the propagation component.