Electrosurgical Instrument Asymmetric Handle and Toggle Control
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Solution Overview
Problem
Existing electrosurgical instruments face issues with stability and accuracy due to rolling and inadvertent activation when placed on surfaces, and inadequate illumination of the surgical field, leading to potential injuries and reduced precision.
Innovation Solution
A hand-held electrosurgical instrument with a contoured handle to prevent rolling, integrated light emitters for enhanced illumination, and a toggle member for simplified operation of electrosurgical functions and light emission, eliminating the need for external cables and improving user control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electrosurgical instrument is made cylindrical for easy gripping, then ease of operation is improved, but the instrument rolls on surfaces causing inadvertent activation and safety issues
Solution Approach 1:
The handle is designed with an asymmetric contoured shape featuring a flattened distal portion that contacts the support surface, preventing rolling while maintaining ergonomic gripping surfaces. This asymmetric geometry allows the instrument to rest stably on one side without rolling, eliminating the safety hazard while preserving ease of operation.
2Adaptability or versatility
If separate actuators are provided for different operational states, then functionality is improved, but finger repositioning is required reducing stability and accuracy
Solution Approach 1:
Multiple actuator functions are merged into a single toggle member that can be manipulated in different positions to activate various operational states (cut, coagulate, desiccate, fulgurate). This single-point control eliminates the need for finger repositioning across multiple actuators, maintaining consistent pressure and stable maneuvering while providing full operational versatility.
3Device complexity
If light emitters are placed away from the electrosurgical instrument, then device complexity is reduced, but shadows are cast on the surgical field reducing illumination quality
Solution Approach 1:
Light emitters are integrated directly into the electrosurgical instrument, merging the lighting function with the surgical tool. This co-location ensures that light is emitted precisely where needed, eliminating shadows cast by the instrument or user's hand on the surgical field, while the integration is achieved through compact design that does not significantly increase overall device complexity.
Data Source
AI summary
Electrosurgical instruments and associated methods are provided. An electrosurgical instrument may include one or more light emitters that comprise a light source in operative communication with a power supply supportably interconnected to a handle portion. The instrument may have a toggle member with one or more selectable positions that may selectively activate any of one or more operational states of an electrosurgical electrode comprising the instrument. The toggle member may selectively activate the light emitter(s) provided on the instrument alone and/or in conjunction with the activation of one or more operational state. The handle portion may include an elastomeric handle portion that extends continuously along the handle portion and over the toggle member to seal the handle portion.