Insulating Bipolar Gripping Unit for Uniform Force and Energy Isolation
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Solution Overview
Problem
Existing bipolar treatment instruments face challenges in maintaining uniform gripping force and preventing high-frequency energy discharge to non-target tissues during treatments, especially when the jaw position changes relative to the treatment section.
Innovation Solution
A gripping unit with a swing section and supporting section, where the entire surface of the supporting section is made of insulating material to prevent high-frequency energy transmission, and the swing section is designed to swing relative to the supporting section, ensuring the jaw-side electrode is exposed only on the facing surface, maintaining consistent gripping force and preventing energy discharge to non-target tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the jaw is made swingable to maintain uniform gripping force, then the gripping force uniformity is improved, but the risk of high-frequency energy discharge to non-target tissues increases
Solution Approach 1:
The jaw is divided into two functional sections: a supporting section made of insulating material and a swing section containing the electrode. This segmentation allows the swing section to move for maintaining gripping force while the insulating supporting section prevents high-frequency energy discharge to non-target tissues.
Solution Approach 2:
Different parts of the jaw have different material properties: the supporting section uses insulating material to prevent unwanted energy discharge, while the swing section uses conductive material to function as an electrode. This local quality differentiation resolves the contradiction between swingability and safety.
2Object-affected harmful factors
If the entire surface of the supporting section is made of insulating material, then high-frequency energy discharge is prevented, but the complexity of the jaw structure increases
Solution Approach 1:
The jaw is segmented into a supporting section with insulating material and a swing section with electrode functionality. This clear segmentation simplifies the design compared to attempting to create a monolithic structure that would need to simultaneously provide insulation, conductivity, and swingability.
Solution Approach 2:
The supporting section serves multiple functions: it provides structural support, ensures electrical insulation to prevent high-frequency energy discharge, and serves as a mounting base for the swing section. This multi-functionality reduces overall structural complexity.
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 solution ensures consistent gripping force and effective high-frequency energy delivery to the target, preventing tissue damage and improving treatment performance by maintaining high current intensity within the target area.
Implementation Method 1
a supporting section in which at least an entire surface thereof is made of an insulating material so as to prevent high-frequency energy from being transmitted through the surface
Implementation Method 2
a coupling member which swingably couples the swing section with the supporting section
Data Source
AI summary
A gripping unit includes a supporting section in which at least its entire surface is made of an insulating material, and a swing section swingable about a swing axis relative to the supporting section. The swing section includes a jaw-side facing surface opposed to a treatment section, and a jaw-side electrode section functioning as an electrode when high-frequency energy is transmitted. The support member covers the swing section from a distal direction, both of width directions, and an open direction of the jaw, and the swing section is externally exposed only on the jaw-side facing surface.