Articulating Stylet for Difficult Intubation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Approximately 8% of the population has partial to zero visual laryngeal exposure, making it difficult to place an endotracheal tube due to anatomical variances and limited manipulation of the rigid stylet and endotracheal tube during laryngoscopy, requiring precise control for successful intubation.
Innovation Solution
A laryngoscopy tool with an articulating stylet and removable handle, featuring a flexible intermediate portion and internal wire mechanism for articulation, allowing for increased range of motion and precise control during intubation, and an actuator for easy manipulation of the distal end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid stylet is used for intubation, then structural stability is maintained, but manipulation flexibility deteriorates due to spatial limitations and anatomical variances
Solution Approach 1:
The stylet is divided into multiple segments that can articulate relative to each other, allowing the distal end to change shape while the proximal end remains stable for control
Solution Approach 2:
The stylet transitions from a static rigid structure to a dynamic articulating structure where the distal end can change shape on demand to navigate anatomical variances
2Measurement precision
If the stylet distal end is made rigid for precise control, then positioning accuracy improves, but adaptability to anatomical variances deteriorates
Solution Approach 1:
The articulating distal end can be adjusted to different shapes as needed, providing both precision when positioned correctly and adaptability when navigating varied anatomy
Solution Approach 2:
The shape parameter of the distal end is made variable, allowing it to change configuration to adapt to different anatomical presentations while maintaining precise control
3Adaptability or versatility
If the stylet is made fully flexible for navigation, then adaptability to anatomical structures improves, but structural stability deteriorates
Solution Approach 1:
The stylet is segmented into a stable proximal portion and a flexible distal portion, allowing each section to fulfill its specific function without compromise
Solution Approach 2:
Different portions of the stylet have different mechanical properties - the proximal end is rigid for control while the distal end is flexible for navigation
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
Facilitates successful tracheal intubation in difficult anatomies by providing increased range of motion and precise control, allowing for easier navigation and placement of the endotracheal tube, even in cases with limited visual exposure.
Implementation Method 1
the stylet comprises an internal wire connected to the distal end, and wherein pulling on the wire from the proximal end results in articulating the distal end of the stylet
Data Source
AI summary
A laryngoscopy tool for assisting in placement of an endotracheal tube is disclosed. The laryngoscopy tool includes a stylet having a proximal end and a distal end, the stylet configured for receiving an endotracheal tube, and having an articulating distal end, the articulating distal end being configured to articulate between more than one shape; a handle secured to the proximal end of the stylet.