Electrosurgical Instrument Tip Monopolar Bipolar Mode Switching
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Solution Overview
Problem
Existing electrosurgical instruments often require different tip designs for monopolar and bipolar modes, limiting their versatility and functionality, especially in combination monopolar/bipolar devices used in both open and laparoscopic surgeries.
Innovation Solution
The development of an electrosurgical instrument tip arrangement featuring a first arm with one or more electrodes and an opposing arm with conductive or nonconductive elements, allowing for energy passage in both monopolar and bipolar modes, with optional additional electrodes for enhanced energy flow and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different tip designs are used for monopolar and bipolar devices, then each mode can be optimized for its specific function, but the device complexity increases and versatility decreases
Solution Approach 1:
The electrosurgical instrument tip is designed with multiple electrodes (first electrode on first arm, second electrode on second arm, and third electrode on first arm) that can be configured to operate in both monopolar and bipolar modes. The first and second electrodes function as bipolar electrodes when used together, and the first electrode can serve as a monopolar electrode when used independently with the third electrode, allowing a single tip design to perform multiple functions across different operational modes.
2Adaptability or versatility
If multiple electrodes are integrated on a single arm, then versatility for both monopolar and bipolar modes is improved, but the device complexity increases
Solution Approach 1:
The electrosurgical instrument tip divides electrodes into separate functional groups: the first electrode on the first arm, the second electrode on the second arm, and the third electrode also on the first arm. This segmentation allows independent configuration where the first and second electrodes work together for bipolar mode, while the first and third electrodes can be used for monopolar mode, simplifying the control logic despite the physical presence of multiple electrodes.
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 improved functionality and interchangeability between monopolar and bipolar modes, facilitating both cutting and hemostasis in various surgical procedures, including open surgery, by optimizing energy flow through multiple electrodes and insulating portions.
Implementation Method 1
Only one of the first electrode, second electrode, third electrode, or one or more conductive elements may pass energy in a monopolar mode and at least two of the first electrode, second electrode, or one or more conductive elements may pass energy in a bipolar mode
Data Source
AI summary
An electrosurgical instrument comprising a first arm carrying at least a first and optionally a second and third electrode, and a second arm opposing the first arm, the second arm carrying one of a nonconductor element or one or more conductive elements.