Laser Ablation Mode Switching Using Real-Time Lesion Feedback
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Solution Overview
Problem
Existing laser ablation technologies face high infection risk and increased costs due to the need for repeatedly plugging and unplugging fibers to change ablation modes, leading to prolonged ablation times.
Innovation Solution
A method that determines laser ablation modes based on real-time lesion region information, adjusting modes as needed to match the current condition, reducing the need for fiber changes and minimizing infection risk while optimizing ablation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If laser ablation modes are changed by repeatedly plugging and unplugging fibers, then different ablation modes can be applied to lesion regions, but infection risk increases and ablation time prolongs
Solution Approach 1:
The patent applies multi-functionality by enabling a single laser fiber to perform multiple ablation modes (cutting, vaporization, coagulation) through dynamic parameter adjustment. The control system modifies laser parameters including wavelength, power, pulse duration, and duty cycle to achieve different ablation effects without requiring physical fiber replacement, thus eliminating repeated plugging/unplugging operations and reducing infection risk while maintaining ablation mode flexibility
Solution Approach 2:
The patent implements dynamics by making the laser ablation parameters adjustable and adaptable in real-time during the ablation process. The system dynamically changes laser wavelength, power output, pulse duration, and duty cycle based on lesion characteristics and treatment requirements, allowing a single fiber to adapt to different ablation needs without physical replacement, thereby reducing infection risk while maintaining versatility
2Adaptability or versatility
If laser fibers are repeatedly plugged and unplugged to change ablation modes, then different treatment approaches can be used, but ablation costs increase
Solution Approach 1:
The patent reduces costs by making the laser fiber universal and multi-functional. A single fiber can deliver multiple ablation modes (cutting, vaporization, coagulation) through programmable parameter control. This eliminates the need to purchase and replace multiple specialized fibers for different ablation modes, significantly reducing material costs while maintaining full treatment versatility
Solution Approach 2:
The patent recovers the value of the laser fiber by keeping it in service continuously rather than discarding it through repeated removal and replacement. The fiber remains inserted throughout the procedure, and its functionality is changed through software control rather than physical replacement, extending its useful life and eliminating the cost of repeated fiber disposal and replacement
3Manufacturing precision
If real-time monitoring and dynamic adjustment of laser parameters are implemented, then ablation precision improves, but system complexity increases
Solution Approach 1:
The patent implements feedback control by continuously monitoring ablation progress through imaging systems (such as MRI or ultrasound) and using this real-time information to adjust laser parameters. The system compares actual ablation results with planned targets and dynamically modifies wavelength, power, pulse duration, and duty cycle to maintain precision, achieving high manufacturing precision through intelligent control rather than mechanical complexity
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
This approach enhances targeting capability and reduces infection risk and ablation costs by dynamically adapting laser ablation modes to the real-time lesion region, ensuring precise and efficient treatment.
Implementation Method 1
perform fragmentation of stones, cutting of a soft tissue, or thermal coagulation denaturation of a soft tissue through a thermal effect or shock waves generated by the laser
Implementation Method 2
perform fragmentation of stones, cutting of a soft tissue, or thermal coagulation denaturation of a soft tissue through a thermal effect or shock waves generated by the laser
Implementation Method 3
A laser ablation technology is to irradiate the lesion region that needs to be ablated with laser light emitted by a laser ablation device
Data Source
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AI summary
The present disclosure provides a laser ablation method, a laser ablation apparatus, a laser ablation device, a computer-readable storage medium, and a computer program product. The laser ablation method includes: determining a corresponding laser ablation mode based on real-time lesion region information at a first time; obtaining real-time lesion region information at a (i+1)th time; determining whether a conformity index between the real-time lesion region information at the (i+1)th time and expected lesion region information after an i-th laser ablation exceeds a first set threshold, to determine a (i+1)th laser ablation mode or end the laser ablation. In the present application, it is able to provide an appropriate ablation strategy according to an actual condition of a lesion and complete the ablation strategy in a single ablation operation, with relatively low risk.