Adjustable Videolaryngoscope for Improved Glottis Visualization
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Solution Overview
Problem
Endotracheal intubation is a difficult procedure due to impaired views of the glottis, often leading to anesthesia-associated complications, especially in anaesthetized patients, as existing laryngoscopes fail to provide sufficient visualization of the glottis.
Innovation Solution
A laryngoscope with an adjustable blade tip and integrated camera, allowing for both direct and indirect visualization of the pharyngeal space, with adjustable mechanics to apply pressure on the hyoepiglottic ligament for improved glottis view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a laryngoscope is used to apply pressure on the hyoepiglottic ligament to lift the epiglottis, then the view on the glottis is improved, but the view is still insufficient to carry out safe intubation
Solution Approach 1:
The patent combines direct laryngoscopy (blade-based visualization) with videolaryngoscopy (camera-based indirect visualization) into a single integrated system. The blade and camera work together to provide both direct mechanical manipulation of the epiglottis and indirect visual recording, merging two previously separate approaches into one comprehensive solution that overcomes the limitations of each individual method.
Solution Approach 2:
The patent introduces an adjustable blade tip that can be dynamically repositioned during the procedure. The blade tip is movable relative to the blade body, allowing the operator to adjust its position to optimize epiglottis lifting and glottis visualization in real-time, transforming a static blade into a dynamic, adaptable tool that responds to anatomical variations and procedural needs.
2Loss of information
If an adjustable blade tip is added to apply pressure on the hyoepiglottic ligament, then the glottis view is improved, but the device complexity increases
Solution Approach 1:
The patent divides the blade into distinct segments: a blade body and a separately adjustable blade tip. This segmentation allows the tip to be independently positioned and adjusted without affecting the overall blade structure. The modular design enables complex functionality (adjustable tip positioning) to be achieved through relatively simple mechanical means, minimizing the increase in device complexity while maximizing visualization capability.
3Reliability
If both direct and indirect views are provided, then the intubation safety is improved, but the ease of operation is reduced
Solution Approach 1:
The patent creates a multi-functional device where the blade serves multiple purposes: it provides direct visualization, acts as a mechanical lever for epiglottis lifting, and supports the camera for indirect visualization. The blade tip can be adjusted to perform both direct laryngoscopy and optimize camera positioning. This universality allows a single device to deliver comprehensive safety benefits without requiring multiple separate tools, thereby maintaining ease of operation.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3
AI summary
The invention relates to a laryngoscope for assisting a user in endotracheal intubation of a patient by laryngoscopy. The laryngoscope comprises a) a handle (10) for the user to hold the laryngoscope, b) a blade (20) adapted to extend from the handle into a pharyngeal space of the patient when the laryngoscope is held by the user, and c) a camera (32) for imaging at least a portion of the pharyngeal space from a position on the blade when the blade extends into the pharyngeal space. The laryngoscope further comprises mechanics operable by the user while holding the laryngoscope, and the blade comprises an adjustable blade tip (21), wherein the blade tip (21) is adjustable by the user via the mechanics. A laryngoscope of this kind allows for safer endotracheal intubations.