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Occlusion sensing in ophthalmic laser probes

A probe and laser source technology, applied in the field of laser probes, can solve the problems of probe end blockage, patient injury, heating probe end, etc.

Active Publication Date: 2021-05-11
ALCON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, bleeding may occur during the treatment, causing blockage near the tip of the laser probe
In some cases, other types of contamination may be located near the probe tip, causing blockage near the probe tip
This blockage can lead to significant laser absorption at the tip, which heats the probe tip and can lead to thermally induced failure of the probe or injury to the patient

Method used

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  • Occlusion sensing in ophthalmic laser probes
  • Occlusion sensing in ophthalmic laser probes
  • Occlusion sensing in ophthalmic laser probes

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Embodiment Construction

[0017] For the purposes of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiments illustrated in the drawings, and specific language will be used to describe the same. It should be understood, however, that no limitation of the scope of the present disclosure is intended. Alterations and further modifications to the described systems, apparatus, and methods are contemplated, as well as any further applications of the principles of the disclosure, as would normally occur to one skilled in the art to which the disclosure pertains. In particular, it is conceivable that a system, apparatus and / or method described with respect to one embodiment may be combined with features, components and / or steps described with respect to other embodiments of the present disclosure. However, for the sake of brevity, numerous iterations of these combinations will not be described individually. For simplicity, in some instances, the same refer...

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Abstract

In certain embodiments, a system for sensing occlusions in an optical system includes a first laser source configured to generate optical signals and a set of optical elements arranged to receive the optical signals from the first laser source and to direct the optical signals along a beam path. The system also includes a detector arranged to receive reflections of the optical signals travelling along at least a portion of the beam path and a control system communicably coupled to the detector. The control system is configured to detect, based on signals generated by the detector, reflection signals associated with the reflections of the optical signals, and disable a second laser source based on detection of the reflection signals.

Description

technical field [0001] The present disclosure relates to occlusion sensing in laser probes, such as laser probes used in ophthalmic surgery (eg, multi-point ophthalmic laser probes). Background technique [0002] Laser probes can be used in certain eye procedures such as laser photocoagulation. Laser photocoagulation treats eye conditions such as retinal detachments and tears, and proliferative retinopathy caused by conditions such as diabetes. Abnormally high blood sugar in diabetics stimulates retinal blood vessels to release growth factors, which in turn promote the undesired proliferation of blood vessels and capillaries on the surface of the retina. These growing blood vessels are very fragile and bleed easily into the vitreous. The body's response to damaged blood vessels is to produce scar tissue, which can in turn lead to retinal detachment and eventually blindness. [0003] In laser photocoagulation, a laser probe, such as a multipoint laser probe, is used to bur...

Claims

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Application Information

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IPC IPC(8): A61F9/008A61B18/22A61B17/00A61B18/00
CPCA61F9/00821A61F2009/00863A61B2018/00636A61B2018/00898A61B2018/00785A61B2017/00123A61B18/22A61B2018/2266G02B27/10
Inventor A·米尔斯帕西R·T·史密斯G·D·巴彻B·拉萨拉斯N·高D·理查森
Owner ALCON INC
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