Oxygen Face Mask with Side Port for Endoscopy
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Solution Overview
Problem
Current oxygen delivery methods, such as nasal cannulas, are inadequate for sedated patients undergoing endoscopy or transesophageal echocardiograms, particularly those with compromised pulmonary function or obesity, as they fail to maintain adequate oxygen saturation, often requiring procedure interruption for rescue ventilation.
Innovation Solution
An oxygen face mask design that fits over the nose and mouth, incorporating a side port for endoscopy tubes and a nasal cannula with adjustable straps and a slit for easy removal, allowing higher oxygen concentration delivery while accommodating endoscopy probes and enabling continuous carbon dioxide monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a nasal cannula is used for oxygen delivery, then the procedure can continue without interruption, but the oxygen saturation drops in patients with compromised pulmonary function
Solution Approach 1:
The patent combines a face mask and nasal cannula into a single integrated device. The face mask portion covers the mouth and nose to deliver high-concentration oxygen, while the nasal cannula portion with prongs inserts into the nasal passages for continuous oxygen delivery. This merging allows the device to provide both high oxygen concentration (improving reliability) and continuous procedure operation (maintaining productivity).
Solution Approach 2:
The integrated device serves multiple functions: it acts as both a face mask for high-concentration oxygen delivery and a nasal cannula for continuous oxygen supplementation. The face mask portion provides the primary oxygen delivery mechanism, while the nasal cannula portion ensures continuous oxygen flow during the procedure, making the device universally applicable for maintaining oxygen saturation without procedure interruption.
2Quantity of substance
If a non-rebreathing face mask is used for oxygen delivery, then higher oxygen concentration is delivered, but the mouth is covered preventing endoscopy probe insertion
Solution Approach 1:
The device segments the face mask into two distinct portions: a face mask portion that covers the mouth and nose for oxygen delivery, and a nasal cannula portion with prongs that inserts into the nasal passages. The face mask portion can be removed or adjusted to allow probe insertion, while the nasal cannula portion remains in place to continue oxygen delivery. This segmentation resolves the contradiction by allowing high oxygen concentration delivery while maintaining adaptability for endoscopy procedures.
Solution Approach 2:
The device incorporates dynamic functionality where the face mask portion can be removed or adjusted during the procedure. The nasal cannula portion with flexible tubing allows the practitioner to insert the endoscopy probe through the mouth while the face mask is temporarily removed or repositioned. After probe insertion, the face mask can be replaced to resume high-concentration oxygen delivery, making the system adaptable to different procedural needs.
3Reliability
If the face mask is designed to fit securely over the nose and mouth, then high-concentration oxygen delivery is achieved, but removal becomes difficult
Solution Approach 1:
The device is segmented into a face mask portion and a nasal cannula portion connected by flexible tubing. This segmentation allows the face mask portion to be easily removed from the patient's face while the nasal cannula portion remains in place within the nasal passages. The flexible tubing connects the two portions, allowing the face mask to be detached for probe insertion or patient comfort while maintaining the oxygen delivery system intact.
4Adaptability or versatility
If a side port is added to the face mask for endoscopy tube insertion, then probe accessibility is improved, but device complexity increases
Solution Approach 1:
Rather than adding a side port to the face mask, the device uses segmentation where the face mask portion and nasal cannula portion are separate components connected by flexible tubing. The nasal cannula portion with prongs that insert into the nasal passages provides the pathway for endoscopy probe access, eliminating the need for additional side ports in the face mask. This approach maintains simplicity while achieving probe accessibility.
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 oxygen face mask provides a safe and effective high-concentration oxygen delivery system, allowing uninterrupted procedures in sedated patients with compromised respiratory function, while enabling easy removal for patient comfort and continued oxygen monitoring post-sedation.
Implementation Method 1
an oxygen reservoir bag operable to release oxygen into the face mask
Implementation Method 2
the strap adjustably attaching to itself with and hook- and loop-fastener
Data Source
AI summary
A nasal cannula allows insertion of an upper endoscopy probe, a transesophageal echo probe for exams, or the like. Currently, a nasal cannula is used to measure expired carbon dioxide and deliver oxygen to sedated patients undergoing these procedures. Use of a face mask, such as a non-rebreathing face mask, during these procedures allows increased delivery of oxygen in patients with compromised respiratory function. A side port can be cut into the non-rebreathing face mask to allow insertion of the probes into patient's mouths while allowing delivery of a higher oxygen concentration. The facemask has the ability to easily separate from the nasal cannula, providing for continued use of the nasal cannula during, for example, a recovery period from sedation.