Patient Ventilation System Using Controllable Pressure Change Element
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Solution Overview
Problem
Conventional patient ventilation systems are cumbersome, expensive, and lack the ability to provide assisted or mandatory ventilation modes, especially for patients requiring high support, and are not suitable for mobile use due to their size and power requirements.
Innovation Solution
A system comprising a gas passage unit with controllable pressure change elements that connect to a patient interface unit via a gas line element, allowing for adjustable pressure to ensure effective ventilation using any pressurized gas source, including wall-mounted units, and featuring a precision control valve or quick-acting pressure reducer to manage pressure fluctuations, enabling assisted or mandatory ventilation and reducing hardware expenditure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stationary ventilators are used to provide high-performance ventilation, then ventilation performance is adequate, but the device becomes complex, heavy, and unsuitable for mobile use
Solution Approach 1:
The invention extracts the essential ventilation function from complex stationary ventilators by using a simple pressure-reducing valve connected to a wall-mounted gas supply. This removes unnecessary components (gas mixers, humidifiers, complex controls) while retaining the core life-support function, achieving high-performance ventilation with minimal hardware
Solution Approach 2:
The wall-mounted gas supply unit serves multiple functions: it provides pressurized gas, the pressure-reducing valve automatically regulates pressure, and the system can serve both stationary and mobile ventilation needs. This universal approach eliminates the need for separate complex ventilator systems
2Ease of manufacture
If wall-mounted gas supply units are used directly, then hardware expenditure is reduced, but pressure fluctuations make direct connection unsuitable for patient ventilation
Solution Approach 1:
A pressure-reducing valve is introduced as an intermediary component between the wall-mounted gas supply and the patient interface. This mediator automatically stabilizes pressure fluctuations by reducing high wall pressure to a safe, stable level suitable for patient ventilation, ensuring reliable operation without complex pressure control systems
Solution Approach 2:
The pressure-reducing valve is designed to automatically regulate pressure without external control. It self-adjusts to maintain stable output pressure regardless of input pressure variations, eliminating the need for external pressure monitoring and control systems while ensuring safe operation
3Adaptability or versatility
If high-pressure gas is used from wall-mounted units, then gas source versatility is improved, but the pressure must be reduced for patient safety and comfort
Solution Approach 1:
The system changes the pressure parameter of the gas supply by using a pressure-reducing valve that automatically transforms high wall-mounted pressure into a safe, comfortable level for patient ventilation. This parameter transformation enables the use of any pressurized gas source while ensuring patient safety
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 system provides high-performance ventilation with minimal hardware, allowing for mobile use and supporting patients with varying ventilation needs, while being smaller, lighter, and more cost-effective than conventional systems, with the ability to use conventional gas sources independently of ventilators.
Implementation Method 1
A pressure difference can be established between the gas passage unit and the patient interface unit by means of the controllable pressure change element. A high pressure can be applied in this manner at the gas passage unit, and a low pressure is applied at the patient interface unit.
Implementation Method 2
Pressure fluctuations on the side of the gas passage unit are compensated by means of the controllable pressure change element, so that a physiologically useful pressure will always prevail at the patient interface unit.
Data Source
AI summary
A system (1) for ventilating patients includes a gas passage unit (2), which has a first inlet opening (6) with a fluid-communicating connection to a pressurized gas source (12, 13) and an outlet opening (9) connected to the first inlet opening (6) in a manner. A patient interface (3), for ventilation, includes an interface inlet opening (10). A gas line element (4) has a fluid-communicating connection to the outlet opening (9) and to the interface inlet opening (10). A controllable pressure change element (5) is provided between the first inlet opening (6) and the interface inlet opening (10). A second inlet opening (8) has a fluid-communicating connection to the gas line element (4). A control unit (7) controls the controllable pressure change element (5). A device or a system (1), which provides fully adequate ventilation with high performance with minimal expenditure for hardware, is provided.