Ventilation Mask Gas Manifold Vectored Ports Curtain Effect
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Solution Overview
Problem
Conventional ventilation masks with open structures face challenges in delivering high concentrations of oxygen or other gases and sampling exhaled gases effectively, leading to undesirable outcomes such as reduced gas delivery efficiency and difficulty in measuring exhaled gases.
Innovation Solution
The ventilation mask incorporates a mask body with vent openings and a gas manifold featuring vectored gas ports and gas fences, which create a curtain effect gas flow to direct supplemental gases to the patient while allowing exhaled gases to be sampled through strategically positioned ports, maintaining an open mask structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If vent openings are included in the mask body, then patient comfort and ability to perform medical procedures are improved, but gas delivery efficiency deteriorates
Solution Approach 1:
The gas manifold distributes supplemental gas through multiple vectored gas ports positioned at specific locations within the patient cavity. Each port directs gas flow locally toward the patient's airway, creating focused high-concentration zones that compensate for the presence of vent openings. This localized gas delivery approach maintains effectiveness despite the open mask structure.
Solution Approach 2:
The system utilizes pneumatic principles by directing high-flow supplemental gas through the vectored ports to create a gas curtain effect. This gas flow acts as a barrier that prevents excessive mixing with ambient air entering through vent openings, thereby maintaining adequate oxygen concentration delivery despite the open mask design.
2Ease of operation
If the mask maintains an open structure, then patient comfort and ease of use are improved, but sampling of exhaled gases deteriorates
Solution Approach 1:
The gas manifold and vectored gas ports are configured in advance to direct supplemental gas flow in a pattern that naturally channels exhaled gases toward the sampling port. This pre-established flow pattern ensures that exhaled gases are reliably directed to the sampling location without requiring additional active control mechanisms.
Solution Approach 2:
The system incorporates a sampling port that provides feedback on exhaled gas composition. This allows monitoring of patient ventilation status and enables adjustment of supplemental gas delivery to maintain appropriate oxygen concentrations, creating a closed-loop control system that compensates for the open mask structure.
3Adaptability or versatility
If vent openings are provided for medical procedures, then accessibility is improved, but gas concentration maintenance deteriorates
Solution Approach 1:
The gas delivery system is segmented into multiple independent vectored gas ports distributed throughout the mask body. This segmentation allows supplemental gas to be delivered at multiple locations simultaneously, creating multiple high-concentration zones that maintain overall oxygen concentration despite ambient air infiltration through vent openings.
Solution Approach 2:
The system dynamically adjusts gas delivery by utilizing high-flow supplemental gas through the vectored ports to actively counteract ambient air mixing. The gas flow rates and distribution patterns can be optimized to maintain stable oxygen concentrations despite the open mask structure and varying patient breathing patterns.
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
This design enables effective delivery of high concentrations of supplemental gases and accurate sampling of exhaled gases, reducing gas wastage and environmental gas entrainment, while ensuring patient comfort and ease of use.
Implementation Method 1
the plurality of vectored gas ports are configured to create a curtain effect gas flow within the patient cavity to form a gas curtain within the patient cavity and adjacent to the at least one vent opening
Implementation Method 2
at least one gas fence disposed adjacent to the at least one vent opening, the at least one gas fence extending axially toward the patient opening
Data Source
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AI summary
Ventilation masks are described herein. A ventilation mask includes a mask body and a gas manifold. The mask body defines a patient cavity and further includes a patient opening in fluid communication with the patient cavity; and at least one vent opening formed through the mask body, the at least one vent opening in fluid communication with the patient cavity, wherein the at least one vent opening is disposed generally opposite to the patient opening. The gas manifold is coupled to the mask body. The gas manifold can define a gas channel. The gas manifold can include a plurality of vectored gas ports in fluid communication with the gas channel, wherein the plurality of vectored gas ports are configured to create a curtain effect gas flow within the patient cavity to form a gas curtain within the patient cavity and adjacent to the at least one vent opening.