Fundus Laser Treatment Monitoring via Speckle-Based Tissue Feedback
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Solution Overview
Problem
Conventional ophthalmic treatment devices struggle to monitor internal tissue state changes during treatment, particularly in the fundus area, due to limitations in using ultrasonic waves or optical sensors like CCD and CMOS, which hinder the detection of micro changes in tissue state.
Innovation Solution
An ophthalmic treatment device that includes a treatment beam generation unit, a beam delivery unit, and a monitoring unit that uses a detecting beam to detect speckle pattern information from the treatment area, allowing real-time monitoring and control of treatment based on detected state changes, particularly focusing on the RPE cell layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional optical sensors (CCD/CMOS) or ultrasonic waves are used to monitor treatment area, then the device structure is simple, but the measurement precision of internal tissue state and micro changes is insufficient
Solution Approach 1:
The patent replaces conventional mechanical/optical sensing methods (CCD/CMOS cameras, ultrasonic waves) with optical coherence tomography (OCT) technology. OCT uses low-coherence light sources and interferometry to achieve high-resolution imaging of retinal layers, enabling detection of micro changes in tissue state during treatment without requiring complex mechanical scanning systems.
Solution Approach 2:
The patent introduces optical coherence tomography as an intermediary monitoring technology between the treatment beam and the tissue. OCT serves as a mediator that provides real-time, high-resolution cross-sectional images of the retinal layers, allowing precise monitoring of treatment effects and tissue changes without direct contact or invasive sampling.
2Reliability
If real-time monitoring of treatment area is implemented, then the treatment accuracy is improved, but the device complexity and cost increase
Solution Approach 1:
The patent implements a feedback control system where OCT monitoring provides real-time information about treatment effects and tissue state. This feedback is processed by a controller that automatically adjusts treatment parameters such as beam power, pulse duration, and treatment location. The feedback loop enables adaptive treatment modification based on actual tissue response, improving safety and accuracy.
Solution Approach 2:
The patent integrates multiple functions into a single ophthalmic treatment device: treatment beam delivery, OCT imaging, and real-time monitoring. By combining these functions in one system rather than using separate devices, the patent reduces overall system complexity while maintaining real-time monitoring capabilities. The unified device architecture allows coordinated operation of treatment and monitoring components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables optimized treatment by detecting micro state changes and preventing damage to adjacent tissues by adjusting treatment energy levels based on real-time monitoring, ensuring accurate and efficient treatment outcomes.
Implementation Method 1
detects speckle pattern information of the detecting beam scattered or reflected from the treatment area to detect state information about the treatment area
Implementation Method 2
detects speckle pattern information of the detecting beam scattered or reflected from the treatment area
Implementation Method 3
performs a treatment with a method of changing a tissue state by light energy absorbed to a human body tissue by radiating light to a human body
Implementation Method 4
a treatment device using laser is widely used for various lesions
Data Source
AI summary
The present invention relates to an ophthalmic treatment device and a method for operating the same. The present invention provides an ophthalmic treatment device and a method for operating the same, the ophthalmic treatment device comprising: a treatment beam generation unit for generating a treatment beam; a beam delivery unit for forming a path along which the treatment beam generated from the treatment generation unit is delivered to a treatment area positioned on the fundus; a monitoring unit for emitting a detecting beam along the path of delivery of the treatment beam and sensing treatment area state information on the basis of information regarding a change in speckle of the detecting beam, which is scattered and reflected from the treatment area; and a control unit for controlling the driving of the treatment beam generation unit on the basis of the treatment area state information sensed by the monitoring unit.