Ventilation Device Patient-Specific Pressure Profile
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Solution Overview
Problem
Current ventilation technologies are rigid and can only respond to a patient's breathing pattern and respiratory disease with limited degrees of freedom, failing to provide individualized adaptation to patient needs.
Innovation Solution
A ventilation device with a sensor unit and control unit that continuously records and analyzes a patient's breathing pattern to create a personalized pressure profile with multiple predetermined levels, allowing for real-time adjustment and optimization of pressure application based on breathing characteristics, using a history analyzer, contour analyzer, and transformation function to convert breathing patterns into optimized pressure profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional ventilation methods (CPAP, Bilevel, TRILevel) with fixed pressure levels are used, then device complexity is reduced and ease of operation is improved, but adaptability to individual patient breathing patterns deteriorates
Solution Approach 1:
The patent implements dynamic pressure adjustment by continuously adapting the pressure profile to the patient's breathing pattern in real-time. The control unit modifies pressure levels dynamically based on detected breathing characteristics, transforming the static pressure delivery of conventional ventilators into a dynamic system that responds to patient needs moment-to-moment.
Solution Approach 2:
The system employs feedback mechanisms where the control unit continuously monitors the patient's breathing pattern and uses this information to adjust the pressure profile. The pressure application is continuously optimized based on feedback from breath detection, creating a closed-loop control system that adapts to individual patient characteristics while maintaining manageable device complexity through algorithmic processing.
2Adaptability or versatility
If fixed pressure levels with limited switching points are applied, then device complexity is reduced, but the ability to respond to individual breathing characteristics deteriorates
Solution Approach 1:
The invention transitions from static pressure levels to a dynamic pressure profile that continuously adapts to the patient's breathing pattern. The control unit implements real-time adjustments based on detected breathing characteristics, enabling the system to respond flexibly to individual patient needs without requiring complex mechanical switching mechanisms.
Solution Approach 2:
The system changes the pressure parameter dynamically by generating a patient-specific pressure profile with multiple predetermined pressure levels. The control unit selectively applies different pressure levels based on the detected breathing phase and characteristics, transforming the fixed pressure parameter into a variable one that adapts to patient needs while using algorithmic control rather than complex mechanical systems.
3Measurement precision
If continuous high sampling rate measurement (>60 Hz) is implemented, then measurement precision of breathing pattern is improved, but use of energy and device complexity increase
Solution Approach 1:
The system applies partial measurement by sampling at high rates only during critical detection periods and using lower sampling rates during stable phases. The control unit processes breathing pattern data at sufficient precision to generate accurate pressure profiles while avoiding continuous maximum-rate sampling, thereby reducing energy consumption while maintaining adequate measurement precision for effective ventilation control.
Data Source
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AI summary
The invention relates to a device (13) for ventilation with at least one pressurized gas source (14) for breathing gas and a sensor unit (15) for determining breathing gas pressure and/or flow/volume and a control unit (16). The control unit records an individual breathing pattern of a patient and generates from this an individual pressure profile (29) for the patient, which is specified by the pressurized gas source.