Double Beak Endotracheal Device Airway Impingement
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Solution Overview
Problem
The placement of double lumen endotracheal tubes is challenging due to their stiffness and larger size, which increases the risk of impingement on fragile airway structures, leading to potential injuries and complications during intubation procedures.
Innovation Solution
A double beak endotracheal device with an anterior and posterior beak configuration that minimizes impingement by reducing the gap between the tube walls and introducing devices, facilitating passage through the glottis, subglottic trachea, and trachea, and reducing friction and injury risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single beak endotracheal tube is used, then intubation success is improved, but significant rotation of the tube is required which increases complexity and time
Solution Approach 1:
The endotracheal tube incorporates two beaks positioned asymmetrically at opposite ends of the distal tip, allowing the tube to engage introducing devices without requiring rotation. This asymmetric dual-beak configuration enables the tube to accommodate devices regardless of their orientation, eliminating the need for time-consuming rotation maneuvers while maintaining high intubation success rates
2Reliability
If a double lumen endotracheal tube is used, then lung protection is improved, but the risk of airway injury increases due to larger size and stiffness
Solution Approach 1:
Both beaks of the double lumen endotracheal tube are rounded rather than sharp or angular. This curvature design allows the beaks to gently engage with introducing devices and airway structures, distributing contact forces and eliminating sharp pressure points that could cause trauma to the glottis, vocal cords, or tracheal wall, thereby reducing airway injury risk while maintaining lung protection capabilities
3Strength
If the tube is made stiffer for structural integrity, then device strength is improved, but passage through the glottis becomes more difficult
Solution Approach 1:
The endotracheal tube is designed with segmented flexibility, where the distal tip containing the beaks is more flexible to facilitate passage through the glottis, while the proximal portion maintains sufficient stiffness for device strength and control. This segmentation allows the tube to navigate the curved anatomy of the airway easily while remaining structurally intact and controllable during insertion and use
4Reliability
If introducing devices are used to facilitate intubation, then placement success is improved, but impingement on posterior glottic structures increases
Solution Approach 1:
The dual beak configuration acts as an intermediary structure between the introducing device and the airway. The beaks engage with the introducing device first, creating a controlled interface that guides the tube through the airway while the rounded beak surfaces distribute contact forces, preventing direct impingement of the introducing device on posterior glottic structures such as the arytenoids and interarytenoid tissue
Data Source
AI summary
A device and method that reduces impingement upon fragile airway structures and improves the performance and safety associated with endotracheal devices and related intubation procedures. The endotracheal device includes a lumen such that one end of the lumen includes an anterior beak that includes a distal tip of the anterior beak and a posterior beak having a distal tip of the posterior beak.