Energy Source Apparatus for Bipolar Electrode Treatment
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Solution Overview
Problem
Existing energy source apparatuses for treatment tools with bipolar electrodes and heaters face challenges in accurately detecting the state of a treatment target while simultaneously applying high-frequency electric power and heater power, leading to potential interference and suboptimal control of the high-frequency electric power output.
Innovation Solution
An energy source apparatus with a processor that controls the output of both high-frequency and heater electric power to maintain a target temperature, detects parameters related to the heater, and sets threshold values to determine when to stop or adjust the high-frequency power based on these parameters, ensuring appropriate detection and control of the treatment target state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If heater electric power is output to generate heat while high-frequency electric power is output to flow current through treatment target, then both heating and high-frequency treatment functions are achieved, but the heater heat interferes with detection of treatment target state using high-frequency electric power
Solution Approach 1:
The patent divides the detection and control functions into separate temporal phases: a first period where only high-frequency electric power is output for treatment and detection, and a second period where heater electric power is output for heating. This temporal segmentation allows accurate detection during the first period without thermal interference, while still achieving both heating and high-frequency treatment functions through coordinated operation of both power sources.
2Temperature
If heater electric power is output to maintain target temperature, then effective heating control is achieved, but detection of treatment target state becomes inaccurate due to thermal interference
Solution Approach 1:
The patent performs detection of treatment target state during a first period before outputting heater electric power in a second period. By conducting detection preliminarily before heating begins, the system obtains accurate baseline state information without thermal interference, then uses this information to guide subsequent heating control while avoiding the interference problem.
Solution Approach 2:
The system uses detection results obtained during the first period (when no heater interference exists) as feedback to control the output of heater electric power in the second period. This feedback mechanism allows the system to maintain target temperature accurately while avoiding the use of contaminated detection data that would result from simultaneous heating and detection.
3Productivity
If high-frequency electric power is continuously output to modify treatment target, then treatment effectiveness is maintained, but inaccurate detection leads to suboptimal control decisions
Solution Approach 1:
The patent implements periodic alternation between a first period (high-frequency electric power output for treatment and accurate detection) and a second period (heater electric power output for heating). This periodic action ensures that detection always occurs during phases when thermal interference is absent, providing accurate feedback for control decisions while maintaining overall treatment effectiveness through continuous coordinated operation of both power sources.
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 solution enables precise detection and control of the treatment target state, ensuring effective application of high-frequency current and heat, thereby optimizing the treatment process while minimizing interference from heater heat on detection and control systems.
Implementation Method 1
a high-frequency current flows between the electrodes through the gripped treatment target and heat generated by the heater is applied to the gripped treatment target
Implementation Method 2
at least one of the grippers includes a heater... heat generated by the heater is applied to the gripped treatment target
Data Source
AI summary
A treatment system comprises a treatment tool and an energy source apparatus is used to electrically communicate with the treatment tool. The energy output source is configured to output high-frequency electric power to the bipolar electrodes so as to cause a high-frequency current to flow through a treatment target between the bipolar electrodes. A processor is used to control the energy output source. The processor performs an output control process on the heater electric power so that the heater reaches a target temperature and maintains at the target temperature. The processor detects a parameter related to the heater from the heater in the output control process based on the target temperature. The processor sets a threshold value used to determine to stop or to lower the output to the bipolar electrodes while the treatment target is being modified by the high-frequency current applied thereto based on the detected parameter.