Bipolar Electrosurgical Instrument with Multi-Electrode Tip
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Solution Overview
Problem
Existing bipolar electrosurgical instruments require repetitive reorientation to coagulate tissue and vessels after cutting, which is time-consuming and inefficient, especially in confined surgical spaces.
Innovation Solution
A bipolar surgical instrument with coagulation elements at the corners of a rectangle or circle on the insulating body and a central cutting element, allowing for immediate coagulation without reorientation, with adjustable surface areas for larger or smaller tissues and vessels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional bipolar electrosurgical instrument is used with a single cutting element, then the instrument structure is simple, but the surgeon must repetitively reorient the instrument to coagulate tissue after cutting, which increases surgical time and reduces efficiency
Solution Approach 1:
The instrument tip is segmented into multiple independent coagulation elements (at least four) arranged around the central cutting element, allowing different regions of the tip to perform different functions simultaneously. This segmentation enables the surgeon to coagulate tissue at multiple locations without reorienting the instrument, directly resolving the contradiction between surgical efficiency and reorientation time.
Solution Approach 2:
The instrument tip is designed with multi-functionality, combining a central cutting element with at least four coagulation elements that can be used for coagulation at any orientation. This universal design allows the same instrument to perform both cutting and coagulation functions at multiple locations simultaneously, eliminating the need for repetitive reorientation and improving surgical productivity.
2Ease of operation
If coagulation elements are added to the instrument tip, then the ability to coagulate without reorientation is improved, but the device complexity increases
Solution Approach 1:
Multiple coagulation elements are merged into a single integrated tip structure that functions as one unit. The at least four coagulation elements are arranged around the central cutting element and are electrically connected through a common return electrode, allowing them to operate simultaneously as a unified system. This merging approach enables easy coagulation at multiple locations while minimizing the increase in device 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
Enhances surgical efficiency by enabling easy and swift coagulation of tissues and vessels at any location, reducing the need for instrument reorientation and improving bleeding control with a larger surface area for larger tissues and a smaller surface area for smaller ones.
Implementation Method 1
application of high frequency electrical current to a surgical site to cut, ablate, coagulate, cauterize, desiccate or seal tissue
Implementation Method 2
Tissue or vessel sealing is a process of liquefying the collagen, elastin and ground substances in the tissue so that they reform into a fused mass
Implementation Method 3
Electro surgery involves application of high frequency electrical current to a surgical site to cut, ablate, coagulate, cauterize, desiccate or seal tissue
Data Source
AI summary
A bipolar surgical instrument having a front region (3) with at least four coagulation elements (6, 7, 8, 9) entered in the slots at the at least four corners of a rectangle or at least four quarters of a circle of the insulation body (22) for coagulating and one cutting element at the centre of insulating body for cutting the tissue and/or vessel in the body, thereby having an at least five electrode arrangement for handling and treating the tissue and/or vessel. The cutting element (10) can be at least one blade or at least one needle and it can be fixed or moved longitudinally in an advanced position or retracted position.