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US 7,813,609 B2Granted
Imaging catheter with integrated reference reflector
AssigneeLightLab Imaging, Inc.
InventorsChristopher Petersen, Stephen M. McCartin, Joseph M. Schmitt, Joel M. Friedman
Life of this patent
Estimating the term…
Abstract
In part, the invention relates to a lens assembly. The lens assembly includes a micro-lens; a beam director in optical communication with the micro-lens; and a substantially transparent film. The substantially transparent film is capable of bi-directionally transmitting light, and generating a controlled amount of backscatter. In addition, the film surrounds a portion of the beam director.
Claims19
An optical element, the optical element comprising:
- a curved cover having a first surface and a second surface, the cover forming a portion of an imaging probe, the cover comprising a polymer and a plurality of back-scattering particles for controlled optical back-scattering disposed therein such that a reference point is generated for an imaging system from the optical back-scattering, the cover allowing transmission of substantially undistorted imaging light.
An imaging probe, the probe comprising
- an elongate section having a first end and a second end;
- the second end forming a probe tip capable of intra-lumen imaging and transmitting substantially undistorted imaging light,
- the probe tip comprising a scattering material, the elongate section adapted to transmit light reflected by the scattering material to the first end of the elongate section,
- wherein the scattering material comprises a plurality of light scattering particles.
1 more element
A method of fabricating an optical element, the method comprising:
- selecting a material suitable for intra-lumen use in an animal;
- selecting a dopant comprising a plurality of particles suitable for dispersion in the material, the dopant adapted to scatter light in response to an optical source;
- determining a dopant volume concentration such that a radial scan of a doped material generates a defined pattern;
- doping the material with the selected dopant to substantially obtain the determined dopant volume concentration;
- and
- shaping the material to faun an elongate cover for intra-lumen use in an animal, the cover allowing transmission of substantially undistorted imaging light.
3 more elements
Dependencies are inferred from the claim text.