Combinable Electrode Needle Base for RF Ablation
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Solution Overview
Problem
Existing electrode devices for radio frequency ablation (RFA) lack flexibility in accommodating varying lesion sizes and locations, requiring additional needles for larger or scattered lesions, which complicates treatment procedures.
Innovation Solution
A combinable electrode needle base structure that can be used in both combined and separated states, featuring dividable bases with coupling parts and a guide with varying heights, allowing for adjustable configuration of electrode needles according to lesion size and location, and stabilization using coupling tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single electrode needle or a fixed plurality of non-separable electrode needles are coupled to the grip base, then the structure is simple and stable, but the adaptability to different lesion sizes and locations is poor
Solution Approach 1:
The grip base is divided into multiple separable bases that can be independently removed and reconfigured. Each base can hold one or more electrode needles, and the bases themselves can be arranged in different configurations (single base, two bases side-by-side, or stacked) to match different lesion sizes and locations, thereby achieving adaptability without requiring a completely different device for each scenario
Solution Approach 2:
The electrode needle base structure transitions from a static, fixed configuration to a dynamic, reconfigurable system. The separable bases allow the operator to dynamically adjust the number and arrangement of electrode needles based on the specific clinical situation, enabling the same device to adapt to varying treatment requirements
2Adaptability or versatility
If additional electrode needles are used for larger or scattered lesions, then the adaptability improves, but the device complexity and number of components increase
Solution Approach 1:
The separable base structure serves multiple functions: it can be used as a single base for small lesions, as two side-by-side bases for medium lesions, or as multiple stacked bases for large or scattered lesions. This multi-functionality allows the same set of components to replace what would traditionally require multiple different electrode needle assemblies, reducing overall device complexity while maintaining high adaptability
3Adaptability or versatility
If the electrode needle base is made separable to allow reconfiguration, then the adaptability improves, but the stability and reliability of the coupling decrease
Solution Approach 1:
The coupling structure combines the separable base with a secure coupling mechanism that ensures stable connection when bases are joined. The coupling parts are designed to maintain reliable electrical and mechanical connections during the procedure, preventing accidental separation while still allowing intentional reconfiguration when needed
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 use of electrode needles either individually or in groups, adapting to different lesion sizes and distributions without the need for additional needles, ensuring stable and flexible treatment configurations.
Implementation Method 1
tumorous tissue can be selectively cauterized by using heat generated by RF waves (including high frequency and microwave)
Data Source
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AI summary
Provided is a combinable electrode needle base structure in which a base to which electrode needles are coupled can be used in a combined or separated state to use the electrode needles according to the size and location of a lesion. In the combinable electrode needle structure, electrode needles are connected to the front side of an electrode needle base, and receive RF waves from RF (radio frequency) generator. The electrode needle base is divided into dividable bases to which the electrode needles are respectively coupled. When a lesion to be cauterized is large or cauterization should be concentrated, the dividable bases are combined and then used, and when a lesion is small or lesions are scattered, the dividable bases may be separated and then used.