Ambient Air Drive Pump for Mobile Medical Ventilator
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Solution Overview
Problem
Current mechanical ventilators for respiratory support are limited by their dependence on external medical gas supplies, which restricts their mobility and increases costs, especially in remote or emergency settings, due to the need for pressurized gas tanks and fixed gas connections, and high-pressure pumps are cumbersome and power-intensive.
Innovation Solution
A patient respiratory support system utilizing a drive pump to pressurize ambient air, providing a high flow rate and energy-efficient medical gas supply, which eliminates the need for external gas sources and incorporates an oscillating pump for fast pressure control and positive end-expiratory pressure support, while also incorporating sound dampening to reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external medical gas supply tanks or fixed gas connections are used, then reliable medical gas supply is ensured, but mobility of the ventilator is severely restricted
Solution Approach 1:
The patent extracts the medical gas supply function from external sources (gas tanks or wall connections) and integrates it into the ventilator itself through an onboard compressor that draws ambient air, eliminating the need for external gas infrastructure and enabling unrestricted mobility
Solution Approach 2:
The ventilator becomes self-sufficient by incorporating a compressor that autonomously draws ambient air and pressurizes it for respiratory delivery, allowing the system to service itself without external medical gas infrastructure
2Ease of operation
If high-pressure pumps are used to pressurize ambient air, then mobility is improved by eliminating gas tanks, but device size and power consumption increase
Solution Approach 1:
The patent employs periodic action by using the patient's own respiratory effort to trigger breath delivery, allowing the compressor to operate intermittently rather than continuously, thereby reducing power consumption while maintaining mobility
Solution Approach 2:
The system uses partial action by providing ventilatory support only when the patient initiates a breath attempt, rather than continuous mandatory ventilation, reducing energy consumption while preserving the mobility advantage
3Use of energy by moving object
If non-high pressure pump systems (blower or turbine) are used, then power consumption is reduced, but response time becomes too slow for timely breath delivery
Solution Approach 1:
The patent applies dynamics by making the compressor operation responsive to real-time patient respiratory effort detection, adjusting the timing and delivery of breaths to match patient needs, achieving both energy efficiency and appropriate response timing
Solution Approach 2:
The system uses feedback from pressure sensors that detect patient breath attempts to trigger compressor operation, ensuring breath delivery occurs at the appropriate moment while minimizing unnecessary energy consumption
4Quantity of substance
If fixed-location gas connections are required, then centralized medical gas supply is utilized, but adaptability to different locations is severely limited
Solution Approach 1:
The patent achieves universality by designing a ventilator that can operate in any location with ambient air, eliminating dependence on fixed gas infrastructure, thereby enabling deployment in diverse settings including remote areas, emergency situations, and mobile healthcare applications
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 enhances mobility, reduces power consumption, and provides efficient respiratory support with fast response times, making it suitable for diverse healthcare settings, including remote locations, by using a drive pump to deliver pressurized medical gas and oscillating pump for precise pressure control.
Implementation Method 1
a drive pump to pressurize ambient air, providing a high flow rate and energy-efficient medical gas supply
Implementation Method 2
incorporates an oscillating pump for fast pressure control and positive end-expiratory pressure support
Data Source
AI summary
A ventilatory system for providing ventilatory support to a patient without the need for an external source of pressurized drive gas. The ventilatory system comprises a drive pump and a controller such that the drive pump collects ambient air and may pressurize it to a pressure determined by the controller. The controller may signal to the drive pump to pressurize the collected ambient air to a first pressure for delivering ventilatory support to a patient and a second pressure for providing PEEP support to a patient. The controller may signal to the drive pump to deliver a targeted flow and/or volume of collected ambient air to the bellows to provide volumetric ventilatory support during inhalation and a PEEP support during exhalation.