Closed-loop Thermal Therapy System with Real-time Temperature Feedback
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Solution Overview
Problem
Current thermal therapy methods for treating internal lesions, such as tumors, rely heavily on practitioner interpretation of visual and temperature data, leading to variability in treatment precision and predictability due to the need for manual control of heat application, which can result in inconsistent outcomes.
Innovation Solution
A thermal therapy system comprising a detection device, a treatment device, and a control system that uses image guidance and feedback loops to precisely deliver energy, modulate energy delivery based on real-time temperature and spatial data, and adapt treatment strategies, incorporating features like fluid circulation in probes to manage temperature and prevent tissue damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If practitioner manually controls heat application based on visual and temperature data, then treatment flexibility is maintained, but treatment precision and predictability deteriorate due to variability in practitioner interpretation and control
Solution Approach 1:
The system implements closed-loop feedback control where temperature sensors continuously monitor tissue temperature and automatically adjust heat delivery parameters. The control system receives real-time temperature data, compares it with target temperature ranges, and modulates energy delivery to maintain optimal therapeutic temperatures, thereby improving treatment precision and predictability while reducing reliance on practitioner manual control.
Solution Approach 2:
The thermal therapy system incorporates automated self-regulation capabilities where the control system independently manages heat application parameters based on real-time temperature feedback. The system automatically adjusts power levels, pulse durations, and cooling rates without requiring continuous practitioner intervention, enabling consistent and predictable treatment outcomes while maintaining system complexity at manageable levels through integrated control algorithms.
2Reliability
If high energy is delivered to achieve effective thermal therapy, then treatment efficacy is improved, but risk of damage to surrounding healthy tissue increases
Solution Approach 1:
The system employs selective energy delivery where heat is concentrated precisely at the target lesion site through focused energy sources and selective heating mechanisms. Temperature monitoring is localized to the treatment zone, allowing high energy delivery to the target while maintaining lower temperatures in surrounding healthy tissues. The control system independently regulates temperature in different spatial zones, enabling effective tumor ablation while protecting adjacent healthy structures from thermal damage.
Solution Approach 2:
The system implements preventive cooling mechanisms and temperature threshold controls before thermal damage can occur in healthy tissues. Cooling elements are positioned adjacent to the treatment zone to preemptively protect surrounding tissues from excessive heat spread. The control system establishes safety thresholds and automatically reduces or terminates energy delivery when temperatures approach damaging levels, preventing tissue damage before it occurs.
3Object-affected harmful factors
If real-time temperature monitoring is implemented to improve safety, then treatment safety is enhanced, but system complexity and cost increase
Solution Approach 1:
The system integrates temperature monitoring and control functions into the existing thermal therapy platform, allowing the same system to perform both therapeutic heating and safety monitoring. The control system serves multiple functions including energy delivery, temperature regulation, and safety monitoring, thereby enhancing treatment safety without proportionally increasing overall system complexity. The integrated approach allows a single control unit to manage multiple therapeutic parameters and safety thresholds.
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 system enables more precise and predictable thermal therapy by ensuring accurate placement and controlled energy delivery to target tissues, minimizing damage to surrounding areas and optimizing treatment outcomes, while incorporating safety features to prevent overheating.
Implementation Method 1
energy is applied to generate a temperature change in the tissue to affect treatment
Implementation Method 2
capable of detecting and/or mapping temperature responses and/or thermally- and/or energy-induced changes to tissues
Implementation Method 3
The control system may generally incorporate a predictive and/or adaptive treatment modulation in a feedback response manner
Implementation Method 4
incorporating features like fluid circulation in probes to manage temperature and prevent tissue damage
Data Source
Figure 1~1b
Figure 2~2f
Figure 3~3e
AI summary
The present invention is directed to systems and methods for thermal therapy, especially to detection-guided, -controlled, and temperature-modulated interstitial thermal therapy. Thermal therapy may be used to treat the tissues of a patient. In the case of interstitial thermal therapy, energy is applied to generate heating of the tissue to affect treatment, such as, for example, thermally inducing tissue damage (e.g. thermally-induced tissue necrosis), which may be useful in treating tumors and/or other diseased tissues. Since targets for thermal therapy are internal to the patient, the use of detection guidance may be useful in locating and monitoring treatment of a target tissue.