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US 2026/0294533 A1Published application
Automatic calibration for distance measurement during laser lithotripsy procedure
AssigneeLumenis Ltd.
InventorsAmir Finkel, Saman Naser, Asya Mikhaylov
Life of this patent
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Abstract
The present disclosure provides a surgical laser system configured to measure a distance between a distal end of an optical fiber in which laser energy is transmitted and a target where reflections from the distal end of the optical fiber are accounted for in measuring the distance.
Claims20
A surgical laser system, comprising:
- at least one laser source configured to output an interrogation laser beam;
- at least one signal detector configured to measure an intensity of a reflected light beam;
- a processor;
- and
- a memory comprising instructions, which when executed by the processor cause the processor to:
- send a control signal to the at least one laser source to cause the at least one laser source to generate the interrogation laser beam,
- receive electrical signals from the at least one signal detector, the electrical signals comprising indications of an intensity of a reflected light beam, wherein the reflected light beam comprises target reflections and parasitic reflections, and wherein the reflected light beam is responsive to incidence of the interrogation laser beam on a target,
- derive a corrected intensity based on the intensity and one or more parasitic intensities,
- determine whether the corrected intensity is less than a threshold value, and
- update at least one of the parasitic intensities based on the corrected intensity responsive to a determination that the corrected intensity is less than the threshold value.
7 more elements
At least one machine readable storage device comprising instructions that when executed by a processor of a surgical laser system cause the surgical system to:
- generate, via a laser source, an interrogation laser beam;
- illuminate, via an optical fiber coupled to the surgical laser system, a target with the interrogation laser beam;
- measure, via at least one signal detector, an intensity of a reflected light beam, wherein the reflected light beam comprises target reflections and parasitic reflections;
- derive a corrected intensity based on the measured intensity and one or more parasitic intensities;
- determine whether the corrected intensity is less than a threshold value;
- and
- update at least one of the parasitic intensities based on the corrected intensity responsive to a determination that the corrected intensity is less than the threshold value.
4 more elements
A method for a surgical laser system, comprising:
- generating, via a laser source, an interrogation laser beam;
- illuminating, via an optical fiber coupled to the surgical laser system, a target with the interrogation laser beam;
- measuring, via at least one signal detector, an intensity of a reflected light beam, wherein the reflected light beam comprises target reflections and parasitic reflections;
- deriving a corrected intensity based on the measured intensity and one or more parasitic intensities;
- determining whether the corrected intensity is less than a threshold value;
- and
- updating at least one of the parasitic intensities based on the corrected intensity responsive to a determination that the corrected intensity is less than the threshold value.
4 more elements
Dependencies are inferred from the claim text.