Medical Treatment System Power Threshold Control
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Solution Overview
Problem
Existing treatment systems for living tissues face challenges in efficiently applying thermal energy and high-frequency power, particularly in controlling the application to ensure effective tissue joining and avoiding excessive heat application, which can lead to adverse effects such as tissue adherence to the treatment surface.
Innovation Solution
A treatment system comprising a power source for heat generation, grasping members with a heating element, and a control section that switches between high-frequency and thermal energy application, with constant temperature control to determine when to stop thermal energy application based on power thresholds independent of tissue type or rate of power decrease, ensuring proper treatment completion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If thermal energy is applied to join living tissues, then tissue joining is achieved, but excessive heat application causes tissue adherence to treatment surface
Solution Approach 1:
The control section continuously monitors the power for heat generation and uses feedback control to stop thermal energy application when the power decreases to a predetermined threshold or when the rate of power decrease indicates treatment completion. This prevents excessive heat application and tissue adherence while ensuring adequate tissue joining.
Solution Approach 2:
The system dynamically adjusts the power for heat generation based on real-time monitoring of power consumption and its rate of change. By changing the power parameter according to the treatment progress, the system achieves tissue joining without causing tissue adherence to the treatment surface.
2Temperature
If constant temperature control is performed on heating element, then thermal energy application is controlled, but treatment completion timing becomes difficult to determine
Solution Approach 1:
The control section uses feedback from power consumption monitoring to determine treatment completion. Instead of relying solely on temperature, the system monitors the power for heat generation and its rate of decrease, providing an additional metric for detecting when treatment has completed.
Solution Approach 2:
The system replaces temperature-based completion detection with power-based detection. By monitoring power consumption and its rate of change, the system can determine treatment completion without additional temperature sensors or complex measurement systems.
3Strength
If power for heat generation is reduced to prevent tissue adherence, then tissue joining may be insufficient, but maintaining high power causes excessive heat
Solution Approach 1:
The control section periodically monitors the power for heat generation and its rate of change during the thermal energy application. This periodic monitoring allows the system to maintain adequate power for tissue joining while detecting when treatment completion is approaching, preventing excessive heat application.
Solution Approach 2:
The system dynamically adjusts the power for heat generation based on real-time monitoring of power consumption and its rate of change. The power is maintained high enough for tissue joining but reduced when the rate of decrease indicates treatment completion, preventing excessive heat while ensuring adequate tissue joining.
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 effectively applies thermal energy to join living tissues by controlling the power and temperature, preventing excessive heat application and ensuring consistent treatment outcomes regardless of tissue type, thus improving operability and treatment effectiveness.
Implementation Method 1
a heating element which applies the power for heat generation as thermal energy to the living tissue
Implementation Method 2
a control section which performs constant temperature control on the power source for heat generation on the basis of temperature of the heating element
Implementation Method 3
High-frequency power energy acts to release intracellular components including polymer compounds typified by protein by destroying cell membranes in a 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 living tissue, and a control section which performs constant temperature control on the power source for heat generation on the basis of temperature of the heating element, and controls the power source for heat generation so as to finish application of the thermal energy and complete treatment if the power for heat generation becomes not more than predetermined threshold power which is independent of a type of the living tissue or if a rate of decrease in the power for heat generation becomes not more than a predetermined threshold rate.