Polyhedral Retractor with Integrated LEDs for Surgical Illumination
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Solution Overview
Problem
Existing surgical retractors fail to provide unobstructed, evenly dimensioned access to surgical areas and adequate illumination, limiting the surgeon's view and access to critical surgical environments.
Innovation Solution
A surgical retractor shaped as a partial polyhedron that expands along multiple axes to create a uniform work area, incorporating strategically placed light emitting elements for improved visualization and illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional surgical retractors are used to retract tissue, then access to the surgical site is improved, but illumination of the surgical field is insufficient
Solution Approach 1:
The patent combines the retraction function and illumination function into a single integrated device. Light emitting elements (LEDs) are embedded within the retractor blades, allowing the device to simultaneously provide tissue retraction and surgical field illumination, eliminating the need for separate illumination sources
Solution Approach 2:
The retractor is designed to perform multiple functions: mechanical retraction of tissue to create access, and optical illumination of the surgical field. This multi-functional design allows a single device to address both access and visualization needs in minimally invasive procedures
2Volume of moving object
If expandable retractors are used to create work space, then access to deep surgical areas is improved, but uniform illumination is not achieved
Solution Approach 1:
The illumination function is segmented into multiple discrete light emitting elements distributed across different blades of the retractor. This segmentation allows light to be emitted from multiple locations simultaneously, creating more uniform illumination across the expanded surgical field compared to a single light source
Solution Approach 2:
The patent transitions from single-axis retraction to multi-axis expansion by deploying multiple blades in different directions. This dimensional expansion creates a three-dimensional work space while the distributed light sources provide illumination from multiple angles, achieving uniform lighting across the expanded volume
3Ease of operation
If multiple retractors are used to expand work area in multiple dimensions, then surgical access is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple retraction functions into a single multi-blade device. Instead of requiring several separate retractors to achieve multi-dimensional access, one integrated retractor with multiple expandable blades provides simultaneous retraction in multiple directions, simplifying the overall device count and setup
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 retractor provides unobstructed access and even illumination, allowing for a more favorable surgical environment with consistent and uniform retraction force, reducing scarring and improving visibility during procedures like thyroid surgery.
Implementation Method 1
light emitting elements placed within the structure
Data Source
AI summary
The present invention provides a surgical retractor that provides improved access to a surgical space, devised in the shape of a partial polyhedron, and also provides improved visualization of the surgical space with light emitting elements placed within the polyhedron structure.