Oral Respiratory Interface for Oxygen Delivery and CO2 Sampling
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Solution Overview
Problem
There is a need for devices that can deliver oxygen and monitor carbon dioxide during medical procedures, particularly in situations where nasal pathology or procedures are difficult or problematic, such as during medical procedures where nasal cannula use is not possible or triggers protective airway reflexes.
Innovation Solution
A respiratory interface device comprising a dental plate, bridge portion, and airway arch that allows for oxygen delivery and carbon dioxide monitoring without triggering protective airway reflexes, using conduits that extend into the mouth to maintain oxygen delivery and carbon dioxide monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a nasal cannula is used for oxygen delivery and CO2 monitoring, then oxygen delivery and monitoring can be achieved, but it becomes difficult or problematic during certain medical procedures or in the setting of nasal pathology
Solution Approach 1:
The patent inverts the conventional approach by delivering oxygen and monitoring CO2 through the mouth rather than the nose. The oral respiratory interface device places conduits in the oral cavity, specifically positioning the oxygen delivery conduit to terminate near the tongue base and the CO2 monitoring conduit to sample from the oropharynx, thereby avoiding nasal pathology and procedure-related nasal constraints
Solution Approach 2:
The patent introduces an intermediary device - a custom-fitted oral respiratory interface that acts as a mediator between the external oxygen source/CO2 monitor and the patient's respiratory system. This interface includes retention elements that engage with dental structures to securely hold the conduits in optimal positions within the oral cavity, ensuring reliable function without nasal involvement
2Reliability
If conduits are extended into the mouth for oxygen delivery and CO2 monitoring, then consistent oxygen delivery and monitoring can be maintained, but it may trigger protective airway reflexes
Solution Approach 1:
The patent applies local quality by precisely controlling the termination positions of the conduits within the oral cavity. The oxygen delivery conduit terminates near the tongue base without contacting the airway, while the CO2 monitoring conduit samples from the oropharynx without triggering reflexes. The retention elements are positioned to engage dental structures without interfering with airway patency or triggering protective reflexes
Solution Approach 2:
The patent uses dental impressions or digital scans to create a custom-fitted oral respiratory interface that replicates the patient's unique dental anatomy. This customized approach ensures optimal conduit positioning and retention element placement specific to each patient, maximizing comfort and minimizing airway reflex activation while maintaining reliable oxygen delivery and CO2 monitoring
3Reliability
If manual interventions are performed during medical procedures to adjust oxygen delivery or CO2 monitoring, then oxygen delivery and monitoring can be maintained, but it interferes with the medical procedure and breaches sterile field
Solution Approach 1:
The patent implements preliminary action by establishing a secure, custom-fitted oral respiratory interface before the medical procedure begins. The retention elements are positioned to engage with dental structures, and the conduits are routed and secured to maintain optimal positioning throughout the procedure. This preliminary setup eliminates the need for manual adjustments during the procedure, maintaining sterile field integrity and procedure efficiency
Solution Approach 2:
The patent applies self-service through the self-retaining design of the oral respiratory interface. The retention elements automatically engage with dental structures to hold the conduits in place without requiring external support or adjustment. The device maintains its own positioning throughout the procedure, freeing the medical team to focus on the primary procedure without intervening to adjust the respiratory support
Data Source
AI summary
The Respiratory Interface Device is a novel, mouth-inserted airway management tool designed to facilitate both oxygen delivery and carbon dioxide sampling through an integrated oral pathway. Unlike conventional nasal cannulas or oropharyngeal airways, this device features internal channels configured to house standard or capnography-compatible tubing, allowing simultaneous gas delivery and exhaled gas monitoring. The device includes a contoured dental plate and an airway arch that conforms to the patient's hard palate, maintaining upper airway patency while avoiding stimulation of the protective airway reflex. Its ergonomic design supports a secure oral fit and provides a streamlined interface for procedural sedation, monitored anesthesia care, emergency airway support, and alternative oxygenation strategies in patients where nasal access is limited or contraindicated. The Respiratory Interface Device represents a versatile, dual-function solution for enhanced airway management and respiratory monitoring.