Medical Treatment System Temperature Control for Tissue Joining
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Solution Overview
Problem
Existing treatment systems for living tissues face challenges in effectively switching between high-frequency power energy and thermal energy application, leading to inefficient tissue treatment and potential adverse effects such as tissue adherence due to prolonged thermal energy application.
Innovation Solution
A treatment system with a high-frequency power source and a power source for heat generation, utilizing grasping members with electric conductors for high-frequency power application and a heating element with a positive temperature coefficient of resistance for thermal energy application, controlled by a system that switches between modes based on temperature change parameters to optimize energy delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermal energy is applied continuously to promote tissue joining, then tissue joining effectiveness is improved, but tissue adherence and excessive heat exposure occur
Solution Approach 1:
The patent implements periodic action by alternating between high-frequency power energy application and thermal energy application in cyclic phases. The control section switches between a first cycle including high-frequency power energy application and a second cycle including thermal energy application, preventing continuous thermal exposure that causes tissue adherence while maintaining effective tissue joining through controlled thermal cycles
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting the temperature parameter through controlled thermal energy application. The system controls the heating element to maintain temperature within a safe range (below 100°C in some embodiments) while still achieving effective tissue joining, and adjusts the duration and intensity of thermal energy based on treatment progress
2Manufacturing precision
If high-frequency power energy is applied to release intracellular components, then tissue uniforming is improved, but treatment time increases
Solution Approach 1:
The patent applies preliminary action by first applying high-frequency power energy to release intracellular components and uniform the tissue structure before applying thermal energy for joining. This preliminary preparation of the tissue ensures that subsequent thermal energy application is more effective and requires less time to achieve proper tissue joining
Solution Approach 2:
The patent maintains continuity of useful action by seamlessly transitioning between high-frequency power energy application and thermal energy application without interruption. The control section manages the switching between different energy types to ensure continuous treatment progress, eliminating idle time between treatment phases
3Reliability
If thermal energy application duration is extended to ensure effective treatment, then tissue joining is improved, but adverse effects such as tissue adherence increase
Solution Approach 1:
The patent implements feedback control by using the temperature change parameter to monitor and control the thermal energy application process. The control section detects temperature changes in the heating element and adjusts or terminates thermal energy application based on whether the temperature change exceeds predetermined thresholds, ensuring effective tissue joining while preventing excessive duration that causes tissue adherence
Solution Approach 2:
The patent replaces mechanical time-based control with a temperature-based control system. Instead of applying thermal energy for a fixed duration, the system uses temperature change parameters as the control criterion, switching to or terminating thermal energy application when temperature thresholds are met, thereby optimizing treatment effectiveness while minimizing adverse effects
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 ensures proper and efficient tissue treatment by automatically controlling thermal energy application duration, preventing excessive heat exposure and promoting effective tissue joining through controlled temperature management.
Implementation Method 1
a heating element which applies the power for heat generation as thermal energy to the living tissue
Implementation Method 2
one pair of grasping members having one pair of electric conductors which apply the high-frequency power as high-frequency power energy to a grasped living tissue
Data Source
AI summary
A treatment system includes a power source for heat generation which outputs power for heat generation, a grasping member having a heating element which applies the power for heat generation as thermal energy to a grasped living tissue and is disposed at a grasping surface, and a control section which repeats a first control mode of performing control such that the heating element reaches a first temperature and a second control mode of performing control such that the heating element becomes lower than the first temperature, and controls the power source for heat generation according to a temperature change parameter based on change in temperature of the heating element in the first control mode or the second control mode so as to end application of the thermal energy.