Excimer Laser Output Control for Optical Fiber Variation
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Solution Overview
Problem
Current medical laser systems face challenges in maintaining consistent laser radiation delivery due to variations in the dimensions and properties of optical fibers, which can lead to ineffective treatments and potential harm.
Innovation Solution
A system that includes a laser source and a laser management system with a control system capable of adjusting the laser energy output based on the specific dimensions of the optical fiber, ensuring consistent wavelength delivery despite variations in fiber dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tight tolerance is imposed on optical fiber dimensions to ensure consistent laser radiation delivery, then treatment reliability is improved, but manufacturing cost increases and manufacturing precision requirements become excessively high
Solution Approach 1:
The system changes the parameter of laser energy output based on the measured optical fiber dimensions. The control system adjusts the laser energy output parameter in response to variations in optical fiber core diameter, allowing the system to maintain consistent treatment outcomes despite manufacturing variations in the optical fiber dimensions
Solution Approach 2:
The system implements a feedback mechanism where the control system receives information about the optical fiber dimensions and uses this information to adjust the laser energy output. This closed-loop feedback ensures that variations in optical fiber manufacturing are compensated by corresponding adjustments in laser energy delivery
2Reliability
If tight tolerance is imposed on optical fiber dimensions to ensure consistent laser radiation delivery, then treatment reliability is improved, but device complexity increases due to additional measurement and control requirements
Solution Approach 1:
The system performs self-calibration by automatically measuring its own optical fiber dimensions and adjusting its laser energy output accordingly. The control system autonomously characterizes the optical fiber properties and compensates for variations without requiring external calibration procedures or additional manual intervention
Solution Approach 2:
The system merges the measurement function and the control function into a single integrated system. The control system both measures the optical fiber dimensions and adjusts the laser energy output based on those measurements, eliminating the need for separate calibration devices or procedures
3Device complexity
If standard laser energy output is used without adjustment to account for optical fiber variations, then device complexity is reduced, but treatment effectiveness decreases and harmful effects may occur
Solution Approach 1:
The system takes preliminary action by measuring and characterizing the optical fiber dimensions before delivering laser treatment. The control system pre-adjusts the laser energy output based on the measured optical fiber properties, preventing potential harmful effects from incorrect energy delivery before they can occur
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
The system effectively compensates for variations in optical fibers, maintaining consistent laser radiation at the target area, thereby ensuring effective treatments and enhancing patient safety while reducing manufacturing costs.
Implementation Method 1
Each laser probe includes an optical fiber, including a fiber optic core, adapted to direct laser radiation from the laser source, through the fiber, and to a desired the treatment area
Data Source
AI summary
The invention provides an excimer laser system including a means for calibrating laser output to compensate for increased variation in laser optical fibers.