LED Laryngoscope Handle with Ergonomic Design and Battery Pack
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Solution Overview
Problem
Traditional laryngoscope handles with halogen or xenon bulbs suffer from short battery life, dimming brightness, and fragility, especially when subjected to impact, limiting their practical use in tracheal intubation procedures.
Innovation Solution
The integration of an LED light source with an ergonomic handle and a battery/lens pack that includes a printed circuit board with an LED drive circuit, using DC batteries and a compression spring to maintain consistent light output and durability, along with an ergonomic design to reduce hand fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If halogen or xenon bulbs are used as light sources, then the laryngoscope can provide illumination for tracheal intubation, but the battery life is short and brightness decreases continuously
Solution Approach 1:
The patent changes the light source from halogen/xenon bulbs to LED, fundamentally altering the operational parameters. LED provides significantly longer battery life while maintaining consistent brightness output, resolving the contradiction between duration and illumination intensity.
Solution Approach 2:
The patent replaces the mechanical bulb system with an LED electronic system. This substitution eliminates the continuous brightness degradation inherent in bulb systems and enables longer operational duration with stable light output.
2Illumination intensity
If halogen or xenon bulbs are used, then illumination can be provided, but the bulbs are fragile and easily break under impact
Solution Approach 1:
The patent replaces the fragile bulb system with a solid-state LED system. LEDs are inherently more durable and resistant to impact, eliminating the fragility issue while maintaining light output functionality.
Solution Approach 2:
The patent adopts LED technology that is more resistant to damage and has longer operational life, replacing the disposable-like bulb system that breaks easily under impact.
3Device complexity
If a straight metallic cylinder handle is used, then the laryngoscope structure is simple, but hand fatigue occurs during use
Solution Approach 1:
The patent changes the handle geometry from a straight cylinder to an ergonomic curved shape. This curvature conforms to the natural contour of the hand, distributing pressure more evenly and reducing fatigue during prolonged use, while maintaining reasonable structural simplicity.
Solution Approach 2:
The patent applies ergonomic principles to the handle surface, creating localized variations in shape and texture that conform to hand anatomy. This local optimization improves comfort and reduces fatigue without requiring complete redesign of the entire handle structure.
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 LED laryngoscope handle provides longer battery life, consistent brightness, and improved durability, reducing hand fatigue and enhancing the effectiveness of tracheal intubation procedures.
Implementation Method 1
The integration of an LED light source with an ergonomic handle and a battery/lens pack that includes a printed circuit board with an LED drive circuit
Data Source
AI summary
A laryngoscope including a laryngoscope blade and laryngoscope handle apparatus including an LED and which may include an ergonomic handle and laryngoscope handle apparatus including an LED and which may include an ergonomic handle.