Laser Treatment With Acoustic Feedback for Tissue-Type Detection
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Solution Overview
Problem
Conventional endoscopic laser treatment systems lack real-time and continuous monitoring of tissue type during procedures, leading to inaccurate targeting and potential damage to non-treatment tissues due to manual recognition limitations and the inability to adjust laser parameters effectively.
Innovation Solution
An acoustic feedback system is integrated into the laser endoscopy system to control laser energy delivery by analyzing acoustic signals from the target, allowing for real-time identification and adjustment of laser parameters and fiber position based on tissue or calculi type, ensuring precise treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual recognition of tissue type is used during laser treatment, then the system is simple to operate, but the measurement precision of tissue type identification deteriorates
Solution Approach 1:
The patent implements acoustic feedback by capturing acoustic signals generated during laser-tissue interaction, processing these signals to identify tissue type, and using this identification to automatically adjust laser parameters. This closed-loop feedback system replaces manual recognition with automated sensing, significantly improving measurement precision while the integration into existing laser systems keeps added complexity manageable.
Solution Approach 2:
The patent substitutes the mechanical/manual process of tissue recognition with an acoustic field-based detection system. By using acoustic signals generated during laser-tissue interaction and processing them through signal analysis algorithms, the system automatically identifies tissue type without requiring manual intervention, thereby improving precision while maintaining operational simplicity.
2Adaptability or versatility
If laser parameters are fixed during treatment, then the device complexity is reduced, but the adaptability to different tissue types deteriorates
Solution Approach 1:
The patent transforms fixed laser parameters into dynamic, adjustable parameters that automatically adapt to different tissue types. The system continuously monitors acoustic signals, identifies tissue characteristics, and real-time adjusts laser parameters such as power, pulse duration, and frequency to optimize treatment for each specific tissue type encountered during the procedure.
Solution Approach 2:
The patent implements automatic modification of laser parameters based on acoustic signal analysis. When different tissue types are detected through acoustic feedback, the system automatically changes laser parameters including power level, pulse duration, and repetition rate to match the optimal settings for the identified tissue, thereby achieving high adaptability without requiring manual parameter adjustment.
3Reliability
If continuous monitoring of tissue type is implemented, then the reliability of treatment is improved, but the loss of time for signal processing increases
Solution Approach 1:
The patent implements continuous monitoring of tissue type throughout the laser treatment process by continuously capturing and analyzing acoustic signals generated during laser-tissue interaction. This uninterrupted monitoring ensures that tissue type identification remains current throughout the procedure, maintaining high treatment reliability and allowing immediate detection of tissue type changes that may occur during ablation.
Solution Approach 2:
The patent employs efficient signal processing techniques that rapidly analyze acoustic signals to quickly identify tissue type. By optimizing the processing algorithm to extract critical information from acoustic signals in minimal time, the system achieves continuous monitoring with reduced processing delays, ensuring that treatment reliability is maintained without significant time loss.
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 continuous monitoring and precise control of laser treatment, reducing accidental irradiation of non-treatment tissues and improving therapy efficacy by adjusting parameters and fiber position in real-time, thus enhancing patient safety and procedure efficiency.
Implementation Method 1
receive an acoustic signal in response to delivery of laser energy to the target
Data Source
AI summary
Systems, devices, and methods for automatic control of laser treatment of target structure in a body of a subject based on acoustic feedback in response to delivery of laser energy to the target are disclosed. An exemplary laser energy delivery system comprises a laser system to direct laser energy at a body target, and a controller circuit to receive an acoustic signal in response to delivery of laser energy to the target, and to measure acoustic properties from the acoustic signal. The control circuit may generate control signals for controlling the laser system to adjust laser energy output, or for controlling an actuator to adjust a position of a laser fiber distal end relative to the target to achieve a desired therapeutic effect.