Portable Ventilator with Adaptive Leak Compensation
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Solution Overview
Problem
Current ventilation devices for sedated or anesthetized patients are bulky, expensive, and require compressed gases, making them unsuitable for portable, noninvasive, and leak-adaptable respiratory support.
Innovation Solution
A portable ventilation system comprising a mask with integrated pressure and flow sensors, a blowing assembly, and a processor that controls the ventilation based on real-time pressure and flow measurements, allowing for adaptive support and monitoring even with varying leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current critical care ventilators are used to provide advanced respiratory support and monitoring, then ventilation effectiveness and monitoring capability are improved, but device size and cost increase
Solution Approach 1:
The ventilator system is divided into separate functional modules: a blowing assembly for ventilation, sensors for monitoring, and a processor for control. This segmentation allows each component to be optimized independently and enables a more compact overall design while maintaining critical ventilation functions.
Solution Approach 2:
The patent combines multiple functions into a single integrated portable device: ventilation delivery, pressure monitoring, flow monitoring, and data processing are merged into one unit. This consolidation eliminates the need for separate bulky critical care ventilators while maintaining comprehensive respiratory support capabilities.
2Ease of operation
If manual ventilation using face mask and bag is used, then respiratory support can be provided, but operator skill requirement and complexity increase
Solution Approach 1:
The ventilator automatically monitors its own performance through integrated sensors and adjusts ventilation parameters without requiring skilled manual manipulation. The device self-regulates based on real-time pressure and flow data, eliminating the need for operator expertise in manual ventilation techniques.
Solution Approach 2:
The system continuously monitors pressure and flow through sensors and uses this feedback to automatically adjust ventilation delivery. The processor receives real-time data from sensors and modifies blowing assembly operation accordingly, creating a closed-loop control system that eliminates manual skill requirements.
3Ease of operation
If portable ventilation device is designed without compressed gases, then portability and ease of operation are improved, but power source requirements and duration of action become critical
Solution Approach 1:
The patent replaces compressed gas storage and delivery systems with an electric blowing assembly powered by a battery. This substitution eliminates the bulk and complexity of gas cylinders while providing portable operation. The electric motor-driven blowing assembly can be controlled precisely through the processor based on sensor feedback.
4Device complexity
If ventilation device does not compensate for mask leaks, then device simplicity is maintained, but ventilation reliability deteriorates
Solution Approach 1:
The system uses pressure sensors to continuously monitor mask pressure and detects leaks through changes in pressure patterns. The processor receives this feedback and automatically adjusts blowing assembly operation to compensate for leaks, maintaining reliable ventilation even with imperfect mask seals.
Solution Approach 2:
The ventilator dynamically changes blowing parameters (pressure, flow rate) based on real-time sensor feedback. When leaks are detected through pressure monitoring, the system adjusts these parameters to maintain adequate ventilation, allowing the same simple device structure to adapt to varying leak conditions.
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 effective, portable, and reliable respiratory support and monitoring, reducing the risk of respiratory complications and allowing for single-handed operation, while operating without compressed gases and providing extended battery life.
Implementation Method 1
a pressure sensor operatively associated with the mask body and configured to measure pressure within the mask
Implementation Method 2
a blowing assembly positioned in fluid communication with the inlet opening of the mask body and configured to direct air to the inlet opening of the mask
Data Source
AI summary
A ventilation system having a mask, a blowing assembly, and a processor. The mask has a mask body and a pressure sensor operatively associated with the mask body and configured to measure pressure within the mask. The mask body defines an inlet opening and a plurality of leak openings. The blowing assembly is positioned in fluid communication with the inlet opening of the mask body and configured to direct air to the inlet opening of the mask body. The processor is positioned in operative communication with the blowing assembly and the pressure sensor of the mask. The processor is configured to selectively control the blowing assembly based upon at least the measured pressure within the mask.