Tissue Treatment Method Using Impedance-Controlled Energy Switching
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Solution Overview
Problem
Existing methods for treating living tissue with energy, such as electrosurgical instruments and coagulation treatments, face challenges in efficiently denaturing tissue when impedance rises, leading to reduced energy output and uneven treatment.
Innovation Solution
A treatment method involving a combination of steps: initially raising the temperature of the tissue, followed by applying high-frequency energy to destroy cell membranes and discharge proteins, and then using heat energy to weld proteins together while dehydrating the tissue, with impedance and temperature thresholds controlling the energy transition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high-frequency energy is applied to living tissue to denature tissue, then tissue denaturation is achieved, but energy output decreases when impedance rises
Solution Approach 1:
The system changes the energy type parameter from high-frequency energy to heat energy when tissue impedance rises, allowing continuous effective treatment without energy output reduction. The control unit monitors impedance and switches energy types to maintain treatment efficacy.
2Productivity
If high-frequency energy is used to destroy cell membranes and discharge proteins, then protein discharge is achieved, but treatment uniformity decreases when impedance varies
Solution Approach 1:
The control unit continuously monitors tissue impedance and uses this feedback to determine when to switch from high-frequency energy to heat energy, ensuring uniform treatment despite impedance variations. This closed-loop control maintains consistent treatment outcomes.
3Reliability
If heat energy is applied to coagulate tissue, then coagulation is achieved, but energy transition control is needed to avoid excessive heating
Solution Approach 1:
The control unit monitors temperature and impedance to automatically switch between energy types, preventing excessive heating while ensuring effective coagulation. This feedback mechanism simplifies the overall control by using sensor data to dictate energy delivery.
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 method ensures efficient denaturation and coagulation of living tissue by automatically switching between high-frequency and heat energy based on impedance and temperature thresholds, minimizing energy loss and improving treatment consistency.
Implementation Method 1
high-frequency energy flows thorough the living tissue to immediately denature the inside of the tissue by use of Joule heat generated in the living tissue
Implementation Method 2
the heat of the ceramic heater is conducted to the living tissue held between the pair of jaws to coagulate the living tissue
Data Source
AI summary
A treatment method for a living tissue using energy includes a first step of outputting energy to a grasped living tissue and raising a temperature of cells of the grasped living tissue, a second step of, after the first step, outputting high-frequency energy to the grasped living tissue and destroying cell membranes of the grasped living tissue to discharge proteins in the cells to the outside of the cells, and a third step of, after the second step, outputting heat energy to the living tissue and welding the proteins to each other while dehydrating the grasped living tissue.