Overlapping Bipolar Electrode for Cylindrical Heat Treatment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional high-frequency heat treatment electrodes, particularly bipolar electrodes, face challenges in minimizing damage to adjacent normal tissues during cauterization of lesions in tubular organs like blood vessels, as they generate heat in an oval shape around insulating parts, leading to incomplete cauterization and damage to surrounding tissues.
Innovation Solution
An overlapping bipolar electrode design where the active and passive electrode bodies are wound in a spiral form around the electrode body with a constant alternating gap, forming a cylindrical heat generation zone that closely matches the lesion, reducing damage to adjacent tissues and improving treatment efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a bipolar electrode with an insulating part is used for high-frequency heat treatment, then the heat treatment range is reduced and normal tissues are protected, but the heat generation forms an oval shape that cannot completely cover cylindrical lesions in tubular organs
Solution Approach 1:
The electrode body is divided into multiple segments with active electrode bodies and passive electrode bodies wound in an overlapping spiral pattern. This segmentation allows the heat generation zones to be distributed along the length of the electrode, creating multiple cauterization points that collectively cover the entire cylindrical lesion area in tubular organs.
Solution Approach 2:
The electrode transitions from a conventional linear or oval heat generation pattern to a three-dimensional overlapping spiral configuration. The active and passive electrode bodies are wound around the electrode body in multiple layers, creating heat generation zones that extend along the longitudinal axis and radially, forming a cylindrical cauterization pattern that matches the geometry of tubular organ lesions.
2Device complexity
If a monopolar needle-shaped electrode is used for high-frequency heat treatment, then the equipment structure is simple, but the high-frequency current affects the whole path reaching the electrode and damages normal organs or tissues
Solution Approach 1:
The electrode implements local quality by creating concentrated heat generation zones only at specific locations where active electrode bodies and passive electrode bodies are in close proximity. The overlapping spiral winding ensures that high-frequency energy is localized to the tissue immediately surrounding the electrode, while the insulating parts and gaps prevent energy propagation along the electrode body, thereby protecting distant normal tissues from damage.
3Object-affected harmful factors
If the heat generation range is reduced to protect normal tissues, then normal tissues are protected, but the lesion cauterization becomes incomplete
Solution Approach 1:
Multiple heat generation zones are merged along the length of the electrode by overlapping the active and passive electrode bodies in a spiral pattern. This merging creates a continuous cylindrical cauterization field that covers the entire lesion while maintaining sharp boundaries at the ends of the electrode, where insulating parts prevent heat generation and protect adjacent normal tissues.
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 overlapping bipolar electrode effectively cauterizes lesions in a cylindrical shape, minimizing damage to normal tissues and enhancing heat treatment efficiency by aligning the heat generation range with the tubular tissue, ensuring complete cauterization without harming adjacent tissues.
Implementation Method 1
the active electrode body 113 which disposed at a tip portion of the body 111 is connected to an active terminal 151 of a high frequency generator, the passive electrode body 115 which is disposed at a back portion of the body 111 is connected to a passive terminal 152, and an insulator part 123 is disposed between the active electrode body 113 and the passive electrode body 115, thereby radiating high frequency energy between the active electrode body 113 and the passive electrode body 115
Implementation Method 2
friction energy due to vibration of ions increases a temperature of tissues to induce coagulation and necrosis of tissues around a lesion
Data Source
AI summary
The present invention relates to an overlapping bipolar electrode for high-frequency heat treatment including: a cylindrical electrode body; an active electrode body configured to be connected to one terminal of a high frequency generator while being wound from a tip portion of an outer peripheral surface of the body toward a rear end thereof in plural times; and a passive electrode body configured to be connected to the other terminal of the high frequency generator while being wound from a tip portion of an outer peripheral surface of the body toward a rear end thereof through the active electrode body in plural times, whereby the heat generation range by high frequency energy radiation generated between the adjacent corresponding active electrode body and passive electrode body matches a lesion of a tubular tissue such as, in particular, a blood vessel, in terms of a form, thereby minimizing a damage of adjacent normal tissues at the time of cauterization and remarkably improving heat treatment efficiency by the electrode.