Multifunctional RF Electrode for Nabothian Cyst Ablation
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Solution Overview
Problem
Existing LEEP procedures are limited in effectively treating Nabothian cysts located in the endocervical canal, as they primarily focus on exocervical pathologies and lack efficient tools for addressing endocervical issues.
Innovation Solution
A multifunctional radiofrequency electrode designed for use in conjunction with an electrosurgical power generator and aspirator, which includes a suction-irrigation duct, a heat-applying ball or sphere, and thermal insulation, allowing for precise ablation and irrigation within the endocervical canal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing LEEP procedures with loop or spherical electrodes are used, then exocervical pathologies can be treated, but endocervical Nabothian cysts cannot be effectively eliminated
Solution Approach 1:
The electrode is designed with multiple functional components: a spherical tip for ablation, a suction channel for removing cyst contents, and an irrigation channel for flushing the endocervical canal. This multi-functional design allows a single device to treat both exocervical and endocervical pathologies effectively
Solution Approach 2:
The electrode shaft is divided into distinct functional segments: the distal spherical ablation tip, the intermediate suction-irrigation duct system, and the proximal connection interface. This segmentation allows each component to perform its specific function optimally while working together as an integrated system
2Reliability
If thermal ablation is applied to endocervical cysts, then cysts can be eliminated, but adjacent tissues may be damaged due to heat transfer
Solution Approach 1:
The electrode features a spherical tip with concentrated heating elements that deliver high thermal energy density precisely to the cyst wall at the contact point. The thermal insulation properties of the electrode shaft prevent heat propagation to adjacent healthy tissues, creating a localized treatment zone
Solution Approach 2:
The suction-irrigation system acts as an intermediary by removing cyst contents through suction while simultaneously irrigating the treatment area with cool fluid. This intermediary action reduces thermal load on surrounding tissues and prevents excessive heat accumulation
3Ease of operation
If cyst contents are not removed during ablation, then treatment is simpler, but treatment effectiveness is reduced due to retained debris
Solution Approach 1:
The ablation and suction functions are merged into a single integrated electrode device. The spherical ablation tip and suction channel are combined in one instrument, allowing simultaneous or sequential performance of both functions without requiring separate devices or procedural steps
Solution Approach 2:
The suction channel operates continuously during the ablation process to remove cyst contents as they are being destroyed. This continuous action ensures complete evacuation of debris throughout the treatment, maintaining treatment effectiveness without interruption
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
Enables the effective elimination or reduction of Nabothian cysts in the endocervical canal by combining suction, irrigation, and thermal ablation, while minimizing contact with adjacent tissues and facilitating post-treatment application of healing agents.
Implementation Method 1
1.2—Ball or Sphere: apply heat to the Nabothian cyst (ablation-desiccation).
Implementation Method 2
1.1—Suction-irrigation duct: to extract mucous content in the endocervical canal and Nabothian cyst
Implementation Method 3
1.5—Thermal insulation: to avoid contact with adjacent tissues (Vulva-vaginal wall).
Data Source
AI summary
The solution presented solves the problem of Nabothian cysts in the endocervix, using a multifunctional radiofrequency spherical electrode, which includes a sphere in the handle, internal conduit (suction-irrigation), thermal insulation, millimeter graduation, measurement fixation ring, which works as a stop, so that the electrode penetrates directly into the cyst directed by ultrasound, applying heat at an intensity (45-75) degrees Celsius and 20-30 seconds each application connected to an electrosurgical generator, also connected to a suction device for the mucous content of the same and irrigate through the canal, 0.9% saline solution, decreasing the intensity of the heat applied to the adjacent tissues. Treatment with healing creams, anti-inflammatories, antibiotics, antifungals and anesthetics may be applied. Managing to make the duct permeable, we will achieve improvement in dysmenorrhea, dyspareunia, fertility and endocervicitis.