Laser Tissue Reshaping Feedback Control System
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Solution Overview
Problem
Existing laser medical treatments face challenges in controlling tissue modification processes and ensuring non-destructive heating due to variations in tissue properties among patients, leading to issues like scarring and relapse, particularly in procedures like nasal septum reshaping and laser regeneration of joints, where optimal treatment sites and laser settings are difficult to determine systematically.
Innovation Solution
A diagnostic and feedback system that includes a device with fiber optic systems for laser treatment, sensors to measure tissue characteristics, and a feedback control system to customize laser settings in real-time, ensuring safe and effective non-destructive tissue modification by analyzing temperature, porosity, absorptivity, and stress across the treatment area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If laser radiation is applied along a bent line for nasal septum reshaping, then the treatment can be performed, but the efficacy is diminished and the number of septum deviation types that can be corrected is limited
Solution Approach 1:
The system enables dynamic adaptation of the laser treatment path to match the actual septum deviation geometry. By using real-time imaging and feedback, the treatment plan can be adjusted from fixed bent lines to customized paths that follow the patient's specific anatomical variations, thereby improving efficacy and expanding treatable deviation types.
Solution Approach 2:
The system allows changing multiple treatment parameters simultaneously including laser wavelength, power density, pulse duration, and treatment path geometry. This multi-parameter optimization enables effective treatment of diverse septum deviation patterns by adjusting parameters to match the specific tissue characteristics and deviation morphology of each patient.
2Reliability
If initial laser settings are chosen near the lower boundary of the therapeutic window to ensure safety, then tissue damage is minimized, but the range of efficacious laser conditions is narrowed
Solution Approach 1:
The system incorporates real-time feedback sensors that monitor tissue temperature, optical properties, and physiological responses during laser treatment. This feedback enables continuous adjustment of laser parameters, allowing the system to identify the optimal working point for each patient by observing actual tissue response, thereby expanding the efficacious parameter range while maintaining safety through real-time monitoring.
Solution Approach 2:
The system performs preliminary diagnostic measurements of tissue optical properties, water content, and structural characteristics before treatment. These pre-treatment assessments enable prediction of the therapeutic window for each patient, allowing initial laser settings to be optimized based on individual tissue properties rather than using conservative fixed values.
3Measurement precision
If comprehensive measurement of multiple tissue characteristics is implemented, then treatment customization is improved, but the system complexity increases
Solution Approach 1:
The system employs multi-functional sensor units that can measure multiple tissue parameters (temperature, optical properties, mechanical properties, vascular status) using integrated diagnostic tools. By combining these measurements into a unified assessment platform, the system achieves comprehensive tissue characterization without proportionally increasing overall system complexity, as the same hardware infrastructure supports multiple measurement functions.
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 enables precise and safe laser treatment by providing real-time feedback on optimal laser settings and tissue conditions, improving the efficacy and safety of procedures like cartilage reshaping and joint regeneration by minimizing tissue damage and promoting effective tissue modification.
Implementation Method 1
a first laser emitting a first beam of laser light having a wavelength, power, pattern, and pulse profile sufficient to produce a non-destructive, irreversible modification of a cartilaginous tissue
Implementation Method 2
Non-destructive laser heating has a variety of applications in the field of medicine
Implementation Method 3
a first fiber optic system passing through the lumen of the cylinder
Implementation Method 4
a plurality of sensors, wherein each sensor is independently capable of measuring a physical or chemical characteristic of the cartilaginous tissue
Data Source
AI summary
The efficacy and safety of laser medical treatments are ensured by performing a combination of measurement techniques to examine tissue properties in order to control characteristics of the laser treatments of cartilaginous tissues. In some aspects, a treatment tool is provided that is capable of taking and providing feedback relating to multiple measurements, including temperature measurements (in particular, radiometry), mechanical measurements, light scattering, speckle interferometry, optoacoustic measurements, and monitoring tissue electrical characteristics. The device is capable of providing feedback during the course of laser treatment of tissue to increase the safety and efficacy of treatment.