Ventilation Interface with Parallel Gas Chambers
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Solution Overview
Problem
Existing medical ventilators are not adapted to administer multiple types of therapeutic gases, requiring hospitals to acquire multiple ventilators to treat patients with different respiratory pathologies, which is inefficient and poses risks such as incomplete inspiratory bladder filling.
Innovation Solution
A ventilation interface with parallel inspiratory and expiratory chambers, each with a variable internal volume reservoir, connected to both the medical ventilator and an additional gas source, allowing for the administration of different gas mixtures without compromising patient safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single medical ventilator is used to deliver multiple therapeutic gas mixtures, then device versatility and cost efficiency are improved, but the reliability of complete gas delivery is worsened due to risks of incomplete inspiratory chamber filling
Solution Approach 1:
The device divides the single ventilator system into two separate parallel circuits: a main gas line with a first inspiratory chamber connected to the ventilator, and an additional gas line with a second inspiratory chamber connected to an additional gas source. This segmentation allows each chamber to independently deliver gas, ensuring that if one chamber fails to fill completely, the other can compensate, thus maintaining reliable gas delivery while enabling multiple therapeutic gas mixtures
Solution Approach 2:
The device pre-fills both the first inspiratory chamber through the main gas line and the second inspiratory chamber through the additional gas line before patient inspiration begins. This preliminary action ensures that both chambers are ready to deliver gas simultaneously or alternatively, preventing any delay or incomplete delivery to the patient while maintaining the capability to administer different therapeutic gas mixtures
2Reliability
If multiple medical ventilators are acquired to treat different respiratory pathologies, then treatment reliability is improved, but device complexity and hospital resource requirements worsen
Solution Approach 1:
The device enables a single medical ventilator to perform multiple functions by integrating two parallel gas delivery circuits: the main gas line delivers therapeutic gases the ventilator was originally designed for, while the additional gas line delivers different therapeutic gases from an additional gas source. This multi-functionality allows one ventilator to treat multiple respiratory pathologies that would otherwise require separate dedicated ventilators, reducing device complexity and hospital resource requirements while maintaining treatment reliability
Data Source
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AI summary
The invention relates to a ventilation interface (30) comprising at least one supplemental gas delivery line (500) with a first and a second inspiratory chamber (341, 343) containing a first and a second inspiratory reservoir (3411, 3413) with variable internal volume, and a first and a second expiratory chamber (351, 353) containing a first and a second expiratory reservoir (3511, 3513) with variable internal volume. A primary gas delivery line (501) includes a first gas inlet port (32) for receiving gas supplied by a medical ventilator (10), and a supplemental gas delivery line (500) includes a second gas inlet port (33) for receiving gas supplied by an additional gas source (5). A powered air-assisted ventilation system comprising such a ventilation interface (30).