Lighted Bougie Midline Alignment for Difficult Airway Intubation
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Solution Overview
Problem
Endotracheal intubation, a critical airway management procedure, is challenging due to the requirement of extensive practice to achieve proficiency, especially in emergency and battlefield settings where traditional methods face high failure rates and complications, and existing light-guided intubation tools are inadequate in high ambient light conditions or with patients having anterior neck fat.
Innovation Solution
A handheld endotracheal intubation assistance system incorporating a lighted bougie with blinking red or near-infrared lights for improved transillumination, a midline alignment light for maintaining proper placement, and an intubating channel for enhanced rigidity and guidance, along with a handle and tongue grasper for facilitating the procedure in difficult airway scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional light guided intubation is used, then anatomical landmark identification is avoided, but the light source is insufficient in high ambient light conditions and/or patients with anterior neck fat
Solution Approach 1:
The light source is divided into multiple LED elements distributed along the bougie shaft, with additional lights at the distal end. This segmentation provides multiple light sources that can collectively penetrate through anterior neck fat and overcome high ambient light conditions, resolving the insufficient illumination problem while maintaining adaptability to different patient conditions.
Solution Approach 2:
The patent combines multiple light sources (distal end lights and shaft-mounted LEDs) with the bougie structure and intubating channel into an integrated system. This merging creates a unified device that provides enhanced transillumination capability while maintaining the ability to adapt to various patient conditions and ambient light environments.
2Reliability
If extensive practice is required to achieve ETI proficiency, then skill acquisition is possible, but the procedure becomes time-consuming and resource-intensive
Solution Approach 1:
The system provides real-time visual feedback through light transillumination patterns that indicate bougie position relative to the trachea and esophagus. This feedback mechanism allows operators to immediately understand placement accuracy without requiring extensive experience, reducing training time while maintaining high proficiency rates through intuitive visual guidance.
Solution Approach 2:
The patent replaces the reliance on operator skill and experience (mechanical learning process) with an optical feedback system that provides intuitive visual guidance. This substitution transforms the learning curve from requiring hundreds of procedures to requiring minimal training, as the system itself provides the guidance that previously required years of practice to develop.
3Productivity
If cricothyroidotomy is used as default battlefield airway management, then airway access is achieved, but failure rates and long-term complications remain high
Solution Approach 1:
The lighted bougie system serves as an intermediary device that guides endotracheal tube placement without requiring surgical cricothyroidotomy. The optical feedback mechanism mediates the intubation process by providing real-time position information, enabling successful airway management through less invasive means and avoiding the complications associated with surgical approaches.
4Measurement precision
If lighted bougie provides intraprocedural feedback, then accurate placement is achieved, but device complexity increases
Solution Approach 1:
The patent applies light sources selectively at specific locations (distal end and along the shaft) rather than uniformly throughout the device. This localized application of lighting provides the necessary transillumination feedback for accurate placement while minimizing overall device complexity by concentrating functional elements only where needed.
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 system simplifies endotracheal intubation by providing intraprocedural feedback and aiding in accurate placement, reducing the need for extensive experience and improving success rates in various conditions, including high ambient light and patients with neck fat.
Implementation Method 1
The light source itself is often insufficient for use in higher ambient light conditions and/or patients with anterior neck fat... the light transilluminates the anterior neck tissue of the patient and glows brightly in the midline when the bougie is placed in the trachea
Data Source
AI summary
A handheld system that is used with an endotracheal tube to facilitate endotracheal intubation is disclosed. The device includes a lighted bougie and an intubating channel, a handle, at least one sensor, a midline alignment light, a tongue grasper, a power source, and electronics. These components combine to form an integrated airway management system. During operation of the system, the light transilluminates the anterior neck tissue of the patient and glows brightly in the midline when the bougie is placed in the trachea.