Illuminated Electrosurgical Blade Tip with Segmented Light Control
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Solution Overview
Problem
Electrosurgical devices with integrated illumination systems face challenges in minimizing the distal profile while providing sufficient and focused light to the surgical site, often resulting in light scatter and distraction for surgeons.
Innovation Solution
The design incorporates a central shaft with an electrosurgical blade, a ring lens, and a hub portion with separation walls and apertures that direct light from multiple sources to the lens, concentrating it towards the blade tip, minimizing scatter and enhancing illumination clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple light sources are arranged around the central shaft to illuminate the surgical site, then illumination intensity is improved, but light scatter increases causing distraction for surgeons
Solution Approach 1:
The illumination system is segmented into multiple discrete light sources arranged around the central shaft, with each light source individually controllable. This segmentation allows selective illumination of specific areas while minimizing overall light scatter, as only the necessary light sources are activated for each surgical task.
Solution Approach 2:
A diffuser element is introduced as an intermediary component between the light sources and the surgical site. This diffuser selectively scatters light in a controlled manner to illuminate the surgical field while filtering out harmful scatter that would distract the surgeon. The diffuser acts as a mediator that transforms direct light into controlled diffuse illumination.
2Ease of operation
If the distal profile is minimized for ergonomic reasons, then ease of operation is improved, but providing sufficient and focused light to the surgical site becomes difficult
Solution Approach 1:
The illumination components are nested within the existing handpiece structure. The light sources are positioned within the handpiece body, and the diffuser element is integrated into the distal tip assembly. This nesting allows the illumination system to be compact and ergonomic while still providing sufficient light output, as the components are arranged concentrically and efficiently use the available space.
Solution Approach 2:
The light sources are arranged in a circular pattern around the central shaft in a radial dimension, allowing illumination to be provided from multiple directions simultaneously. This dimensional arrangement enables the handpiece to maintain a compact profile while delivering adequate illumination intensity through the combined effect of multiple light sources positioned in different spatial orientations.
3Illumination intensity
If light is directed directly onto the surgical field via optical waveguide or lens, then illumination intensity is improved, but the device complexity increases
Solution Approach 1:
The handpiece structure is designed to serve multiple functions: it houses the electrosurgical electrode, accommodates the illumination light sources, and integrates the diffuser element for controlled light delivery. This multi-functionality reduces the need for separate dedicated illumination components, thereby limiting the increase in device complexity while still achieving adequate illumination intensity through the combined functional elements.
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
This configuration provides a bright, crisp illumination circle around the blade tip with a controlled dim gradient, reducing light scatter and maintaining a minimal distal profile, thus improving surgical visibility and user experience.
Implementation Method 1
at least one lens element arranged around the central shaft... to direct light to the first side of the at least one lens element... guide light from the one of the plurality of light sources to the first side of the at least one lens element and therethrough toward the tip of the electrosurgical blade
Data Source
AI summary
Embodiments relate to illuminated electrosurgical devices and related systems and methods. An electrosurgical device can include an electrosurgical blade having a proximal end and a distal end and comprising a plurality of light elements. A plurality of separation walls and a plurality of apertures can be arranged relative to the plurality of light elements to guide light from the plurality of light elements to illuminate an area around the distal end of the electrosurgical blade.