Plasma Treatment System Temperature Control
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Solution Overview
Problem
Existing plasma treatment systems for medical applications face challenges in precisely controlling the temperature and perfusion volume of the electrically conductive solution within the perfusion layer, which affects the generation and efficacy of plasma for minimally invasive treatments like tonsil resection, where heat damage to surrounding tissues needs to be minimized.
Innovation Solution
A plasma treatment system that includes a temperature adjustment unit and a temperature detection section to maintain the perfusion layer's temperature within a target range, along with a control section that adjusts the supply and suction volumes of the electrically conductive solution to optimize the perfusion layer's conditions for effective plasma generation and treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio-frequency energy is supplied to generate plasma in the perfusion layer, then plasma generation efficacy is improved, but temperature control precision deteriorates due to heat damage to surrounding tissues
Solution Approach 1:
A temperature detection section is positioned to detect the temperature of the perfusion layer where plasma is generated. The control section receives temperature information from the detection section and adjusts the radio-frequency energy supply accordingly, creating a closed-loop feedback system that maintains temperature within a safe range while ensuring effective plasma generation
Solution Approach 2:
The system dynamically adjusts the radio-frequency energy parameters (power, frequency, duration) based on real-time temperature detection. When the perfusion layer temperature approaches the threshold for tissue damage, the control section reduces or interrupts energy supply, thereby maintaining plasma generation efficacy while preventing excessive temperature rise
2Stability of the object's composition
If the supply volume of electrically conductive solution is increased to maintain perfusion layer, then plasma generation stability is improved, but system complexity increases due to need for precise supply and suction control
Solution Approach 1:
The supply path and suction path are integrated into a unified perfusion control system managed by a single control section. The control section coordinates both supply and suction operations based on temperature feedback, merging multiple control functions into one centralized unit that manages the entire perfusion layer maintenance process
Solution Approach 2:
The system uses the temperature detection feedback to automatically regulate the perfusion layer composition. The control section adjusts supply and suction volumes based on real-time temperature data, enabling the system to self-regulate perfusion layer stability without requiring external manual intervention
3Measurement precision
If temperature detection section is positioned in the perfusion layer, then temperature control precision is improved, but device complexity increases due to additional sensing and control mechanisms
Solution Approach 1:
The control section serves multiple functions: it controls the radio-frequency energy supply, regulates the supply and suction paths, and processes temperature detection data. By making the control section multi-functional, the system achieves precise temperature measurement and control without adding separate dedicated control units for each function
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 ensures precise control over plasma generation, reducing heat damage to surrounding tissues and enhancing the efficacy of minimally invasive procedures by maintaining optimal perfusion layer conditions.
Implementation Method 1
a temperature adjustment unit which is configured to adjust a temperature of the electrically conductive solution before the spout of the electrically conductive solution from the spout
Implementation Method 2
a temperature detection section which is fixed to the treatment portion, and which is located at a position to be immersed in the perfusion layer in a state where the first electrode portion and the second electrode portion are immersed in the perfusion layer, whereby a temperature of the perfusion layer is detected
Implementation Method 3
the treatment portion being configured to generate plasma in the perfusion layer by a supply of radio-frequency energy to the first electrode portion and the second electrode portion in a state of immersing these electrode portions in the perfusion layer
Implementation Method 4
a control section which is configured to control an adjustment of the temperature of the electrically conductive solution in the temperature adjustment unit and control a supply volume of the electrically conductive solution supplied through the supply path and a suction volume of the electrically conductive solution sucked through the suction path on the basis of a detection result in the temperature detection section
Data Source
AI summary
In a plasma treatment system, a temperature detection section detecting a temperature of a perfusion layer of an electrically conductive solution is fixed to a treatment portion, and is located at a position to be immersed in the perfusion layer when a first electrode portion and a second electrode portion are immersed in the perfusion layer. In the plasma treatment system, a control section controls an adjustment of a temperature in a temperature adjustment unit and controls a supply volume and a suction volume of the electrically conductive solution on the basis of a detection result in the temperature detection section so that the temperature of the perfusion layer is within a target temperature range.