Closed-Circuit Breathing Device Xenon Steady-State Control
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Solution Overview
Problem
Current delivery systems for xenon, a potentially therapeutic gas, are expensive, require specialized supervision, and are not optimized for cost-effective use, limiting its clinical application in treating anxiety and addiction disorders.
Innovation Solution
A closed-circuit breathing device that includes a breathing port, sensor assembly, and controller to achieve a steady-state equilibrium of therapeutic gases like xenon, minimizing waste and allowing safe, cost-effective delivery with minimal supervision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If commercial devices are used to deliver xenon, then xenon can be delivered as an anesthetic agent, but the devices are expensive and require specialized personnel supervision
Solution Approach 1:
The system automatically monitors xenon concentration via sensors and adjusts gas delivery without requiring specialized personnel supervision. The controller self-regulates the breathing circuit to maintain therapeutic xenon levels, making the device self-sufficient and eliminating the need for expert operators.
Solution Approach 2:
The system incorporates sensors that continuously monitor xenon concentration and provide feedback to the controller. This closed-loop feedback mechanism automatically adjusts gas delivery to maintain precise therapeutic levels, replacing the need for manual monitoring by specialized personnel.
2Reliability
If commercial devices are used to deliver xenon, then xenon delivery is possible, but the devices are not optimized for cost-effective use of the expensive gas
Solution Approach 1:
Sensors continuously monitor xenon concentration in the breathing circuit and provide feedback to the controller, which precisely regulates gas delivery. This prevents both under-dosing and over-dosing, optimizing xenon utilization and minimizing waste of this expensive therapeutic gas.
Solution Approach 2:
The system dynamically adjusts xenon concentration parameters based on real-time sensor data and patient needs. By precisely controlling delivery parameters rather than using fixed high-concentration delivery, the system minimizes xenon waste while maintaining therapeutic effectiveness.
3Loss of substance
If a closed-circuit breathing device is used, then steady-state equilibrium can be achieved with minimal gas loss, but the device complexity increases
Solution Approach 1:
The system combines multiple functions into integrated components: sensors monitor multiple gas parameters simultaneously, the controller manages both oxygen and xenon delivery, and the breathing circuit handles both gas mixing and patient interface. This integration reduces overall system complexity despite the sophisticated closed-loop control required.
Solution Approach 2:
The breathing circuit is designed as a multi-functional system that simultaneously performs gas mixing, concentration monitoring, patient ventilation support, and xenon recovery. This universal design consolidates what would otherwise require separate specialized equipment, managing complexity through functional integration.
4Productivity
If incremental controlled volumes of therapeutic gas are delivered, then steady-state concentration is achieved efficiently, but the control system complexity increases
Solution Approach 1:
The controller delivers therapeutic gas in incremental periodic volumes rather than continuous flow, allowing the system to efficiently reach steady-state concentration. This pulsed delivery approach, combined with periodic sensor monitoring, achieves rapid equilibrium while using relatively simple control logic compared to continuous complex regulation.
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 device enables efficient and safe administration of xenon, achieving a steady-state concentration for therapeutic use while minimizing gas loss and operational costs, making it suitable for treating anxiety and addiction disorders.
Implementation Method 1
The sensor assembly is configured to measure at least one of a concentration or a flow rate of gases inhaled out and exhaled into the breathing circuit
Implementation Method 2
The chamber is also in fluid communication with the breathing circuit, and is configured to hold a known volume of a pressurized therapeutic gas
Data Source
AI summary
Described here are closed-circuit breathing devices and methods for their use. In general, the closed-circuit breathing device is configured to achieve a steady-state equilibrium, whereby therapeutic gas is introduced into the breathing circuit in small, controlled volumes until a steady state concentration of the therapeutic gas is reached. During this time, the closed-circuit breathing device is operated in a true closed circuit, such that the therapeutic gas is not lost to the atmosphere. Safety measures are built into the closed-circuit breathing device so that a hypoxic mixture is not delivered to the subject. The therapeutic gas may be xenon.