Surgical Vaporization Electrode Ceramic Insulation
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Solution Overview
Problem
The existing vaporization electrodes face destruction due to plasma formation at non-functional areas, particularly near the insulating sheath, which is thermally susceptible and prone to degradation, leading to the electrode's malfunction.
Innovation Solution
A ceramic covering is applied to the electrode head's surface zone surrounding the feed conductor's connection site to prevent plasma formation, protecting the insulating sheath and ensuring the electrode's integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an insulating sheath is used to protect the feed conductor, then electrical insulation is improved, but the sheath is destroyed by plasma formation
Solution Approach 1:
A ceramic insulator is introduced as an intermediary component between the feed conductor and the plasma environment. The ceramic material provides electrical insulation while being resistant to plasma attack, thereby protecting the plastic insulating sheath from destruction by serving as a barrier against plasma formation at the connection site.
Solution Approach 2:
The ceramic insulator acts as a sacrificial or replaceable component that can be easily manufactured and replaced. By placing the ceramic at the most vulnerable point (connection site), the design allows this simple component to be replaced rather than the entire electrode assembly, reducing overall system cost and complexity.
2Productivity
If plasma is allowed to form for tissue vaporization, then vaporization efficiency is improved, but the insulating sheath is destroyed
Solution Approach 1:
The ceramic insulator is applied locally at the connection site where plasma would otherwise form and cause damage. This localized protection allows plasma to form freely at the functional electrode surface for efficient vaporization while preventing plasma formation at the vulnerable connection area, thus maintaining electrode integrity.
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 ceramic covering effectively prevents plasma formation at non-functional areas, thereby safeguarding the insulating sheath and extending the electrode's lifespan by preventing thermal degradation.
Implementation Method 1
The high frequency (hf) of the electrode causes the tissue to heat to carbonization
Implementation Method 2
The tissue is heated by a plasma building up above the functional surface
Data Source
AI summary
A surgical vaporization electrode (1) including an electrode head (2) which in turn is fitted with a functional surface (6) and which is connected at a minimum of one connection site (10) to a feed conductor (3) enclosed by an insulating sheath (4), is characterized in that the surface zone (7) of the electrode head (2) surrounding the connection site (10) is fitted with a ceramic covering (8).