Fiber optic probe for therapeutic use
AssigneeRakuten Medical, Inc.
InventorsHideki KANEBAKO, Roland BAYS
Life of this patent
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Abstract
The therapeutic fiber optic probe has a light transmission structure 3 capable of outputting light in a predetermined fixed direction, and a mirror structure 4 provided at a position where light output from the light transmission structure can be received, and the mirror structure reflects a portion of the received light required for treatment in a direction different from the fixed direction with a reflectance of 90% or more, and generates a light spot that exhibits a uniform light energy distribution over its entirety.
Claims20
A therapeutic fiber optic probe capable of generates a light spot that exhibits a uniform light energy distribution over its entirety comprising:
- a light transmission structure;
- a lens structure, wherein the lens structure is mounted at the tip of the light transmission structure and is capable of outputting transmitted light in a predetermined fixed direction;
- and
- a mirror structure, wherein the mirror structure comprises a flat reflective portion facing the lens structure, the mirror structure is provided at a position capable of receiving light output from the light transmission structure, wherein the mirror structure reflects a portion of received light in a direction different from the predetermined fixed direction with a reflectance of 90% or more;
- and
- wherein the light transmission structure, the lens and the mirror structure are comprised in a tubular structure, and wherein the tubular structure comprises an opening for passing reflected light from the mirror structure to generate the light spot.
A method of treating a subject with a photoactivatable compound and a therapeutic fiber optic probe, wherein the therapeutic fiber optic probe comprises:
- a light transmission structure;
- a lens structure, wherein the lens structure is mounted at the tip of the light transmission structure and is capable of outputting transmitted light in a predetermined fixed direction;
- and
- a mirror structure, wherein the mirror structure comprises a flat reflective portion facing the lens structure, the mirror structure is provided at a position capable of receiving light output from the light transmission structure, wherein the mirror structure reflects a portion of received light in a direction different from the fixed direction with a reflectance of 90% or more;
- and
- wherein the light transmission structure, the lens and the mirror structure are comprised in a tubular structure, and wherein the tubular structure comprises an opening for passing reflected light from the mirror structure to generate the light spot.
A method of producing a light spot of one or more specific wavelengths on a target surface, wherein the method comprises:
- transmitting light by a therapeutic fiber optic probe, wherein the therapeutic fiber optic probe comprises:
- a light transmission structure;
- a lens structure, wherein the lens structure is mounted at the tip of the light transmission structure and is capable of outputting transmitted light in a predetermined fixed direction;
- and
- a mirror structure, wherein the mirror structure comprises a flat reflective portion facing the lens structure, the mirror structure is provided at a position capable of receiving light output from the light transmission structure, wherein the mirror structure reflects a portion of received light in a direction different from the predetermined fixed direction with a reflectance of 90% or more;
- and
- wherein the reflective portion of the mirror structure comprises a dielectric multilayer film in which dielectric thin films having high and low refractive indices are alternately stacked;
- wherein the light transmission structure, the lens and the mirror structure are comprised in a tubular structure, and wherein the tubular structure comprises an opening for passing reflected light from the mirror structure to generate the light spot, whereby the light spot exhibits a uniform light energy distribution over its entirety.
Dependencies are inferred from the claim text.