Surgical Retractor with Embedded LED Illumination
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Solution Overview
Problem
Existing surgical retractors with integrated lights lack optimal illumination and visualization capabilities, particularly in adjustable and sterilizable designs that can be used effectively in various surgical procedures.
Innovation Solution
A surgical retractor with an integral shaft and blade joined at an adjustable angle, featuring embedded LED lights exposed on an opaque blade surface, along with an optional camera for enhanced visualization, and a sterilizable design using materials like PEEK for autoclaving and other sterilization methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED lights are embedded within the blade and surrounded by opaque material, then illumination effectiveness is improved, but light transmission through the blade is reduced
Solution Approach 1:
The blade is designed with differentiated optical properties: opaque surrounding material for structural integrity and light direction, with localized translucent/transparent regions at the distal end to allow light transmission into the surgical site. This local quality differentiation resolves the contradiction by providing both illumination effectiveness and light transmission where needed.
2Adaptability or versatility
If the shaft and blade are joined at an adjustable angle, then adaptability to different surgical procedures is improved, but device complexity increases
Solution Approach 1:
The connection between shaft and blade is made dynamically adjustable rather than fixed, allowing the blade to be positioned at various angles relative to the shaft. This dynamic adjustability enables adaptation to different surgical procedures while maintaining reasonable device complexity through mechanical adjustment mechanisms.
3Reliability
If the retractor is designed to be sterilizable through autoclaving and other methods, then reliability and safety are improved, but the materials and construction complexity increase
Solution Approach 1:
The retractor employs composite material construction, particularly using PEEK (polyether ether ketone) which combines the properties of being both sterilizable through autoclaving and maintaining structural integrity. This composite approach resolves the contradiction by providing sterilizability while managing manufacturing complexity through material selection.
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
Provides effective illumination and visualization in surgical procedures, with adjustable and sterilizable features that enhance the retractor's usability and safety.
Implementation Method 1
A plurality of LED lights are embedded within the blade and are exposed at the upper surface
Data Source
AI summary
A surgical retractor has a shaft with an integral blade. The shaft and the blade are joined at an angle. The blade has an upper surface. A plurality of LED lights are embedded within the blade and are exposed at the upper surface. The blade surrounding the LED lights is opaque. The retractor may further include a camera mounted on the blade. Also disclosed is a surgical retractor kit including a mounting ring, at least one of the aforementioned surgical retractors, and a coupler for releasably mounting the retractor to the ring.