Energy Control Device Impedance-Based Phase Transition
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Solution Overview
Problem
Existing energy control devices for energy treatment instruments lack an efficient method to dynamically adjust energy output based on changing impedance of the treated target, leading to suboptimal treatment efficacy and potential tissue damage.
Innovation Solution
An energy control device with a controller that transitions through phases, starting with single electric energy output, detecting impedance, and switching to simultaneous output of high-frequency current and treatment energy, adjusting the control pattern based on impedance variations to optimize energy delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only high-frequency current is output in a single phase, then the control system is simple, but the treatment efficacy is insufficient and thermal spread to adjacent tissues occurs
Solution Approach 1:
The treatment process is segmented into distinct phases: a first output phase using only high-frequency current to coagulate the treated target, followed by a second output phase using only heat from a heat generating body for precise temperature control. This segmentation allows each energy type to perform its optimal function without interference, improving treatment efficacy while maintaining manageable system complexity through structured temporal separation.
Solution Approach 2:
The system dynamically switches between different energy output modes based on treatment progress. The controller monitors impedance changes and automatically transitions from the first output phase (high-frequency current only) to the second output phase (heat only) when the impedance reaches a switching value, enabling adaptive control that optimizes treatment efficacy throughout the procedure.
2Object-affected harmful factors
If constant temperature control is maintained throughout the treatment, then thermal damage to adjacent tissues is minimized, but treatment efficacy decreases due to insufficient energy delivery
Solution Approach 1:
The treatment is divided into two distinct phases: the first output phase uses high-frequency current without constant temperature control to ensure effective coagulation and denaturation of the treated target, while the second output phase implements constant temperature control to prevent thermal spread to adjacent tissues. This temporal segmentation allows both high efficacy and safety to be achieved at different stages.
Solution Approach 2:
The high-frequency current is applied first to preliminarily coagulate and denature the treated target, creating a barrier that prevents subsequent thermal spread to adjacent tissues. This preliminary action enables the later constant temperature control phase to safely maintain lower temperatures without compromising treatment efficacy, as the primary denaturation has already occurred.
3Reliability
If the treatment time is extended to ensure complete denaturation, then treatment efficacy improves, but the procedure duration increases and energy consumption rises
Solution Approach 1:
The treatment process is segmented into two efficient phases: the first output phase rapidly coagulates the treated target using high-frequency current, and the second output phase completes the denaturation using controlled heat. This segmentation ensures complete treatment efficacy while minimizing total procedure time by using the most effective energy type for each stage, avoiding unnecessary extension of either phase.
Solution Approach 2:
The controller ensures continuous and uninterrupted energy delivery throughout both phases by automatically switching between the first and second output phases based on impedance monitoring. This continuous action eliminates treatment gaps that would extend procedure time, maintaining optimal energy delivery rates throughout the entire treatment process to achieve complete denaturation efficiently.
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 approach allows for precise control of energy output, enhancing treatment efficacy by ensuring effective denaturation of the target tissue while minimizing unnecessary energy application and preventing thermal spread to adjacent tissues.
Implementation Method 1
a first energy output source configured to output first electric energy, and configured to pass a high-frequency current through a treated target by supplying the output first electric energy to the electrode
Implementation Method 2
a second energy output source configured to output second electric energy different from the first electric energy, and configured to generate treatment energy different from the high-frequency current in the functioning element by supplying the output second electric energy to the functioning element
Data Source
AI summary
A controller carries out a single outputting phase in which only first electric energy is supplied to an electrode, and transitions the single outputting phase to a simultaneous outputting phase in which the first electric energy and second electric energy are simultaneously output and treated target is denatured due to both of a high-frequency current and treatment energy generated in a functioning element. The controller sets a control pattern relating to the treatment energy in the simultaneous outputting phase, based on an impedance at a certain time point in the single outputting phase and/or a variation with time of the impedance in the single outputting phase.