Adjustable Resuscitation Device Tidal Volume Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current resuscitation devices lack the ability to consistently deliver a tidal volume of air/oxygen tailored to a patient's specific lung size, often leading to over-inflation and potential lung injury due to the reliance on manual compression, which can vary significantly.
Innovation Solution
A resuscitation device with a stationary and moving frame, a bellows, and an adjustable slide mechanism that allows for precise adjustment of tidal volume based on patient weight, ensuring consistent delivery of 6-8 ml/kg of air/oxygen through a mechanism that prevents over-ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a resuscitation bag is used with manual compression, then the device is simple and easy to operate, but the tidal volume delivered varies significantly and cannot be consistently tailored to patient size
Solution Approach 1:
The device incorporates an adjustable bellows mechanism that can be dynamically configured to different sizes (e.g., adult, pediatric, infant) to match patient lung capacity. The bellows is adjustable via a mechanism that allows the healthcare provider to select the appropriate size, enabling consistent tidal volume delivery tailored to each patient while maintaining ease of operation.
2Measurement precision
If multiple resuscitation bags of different sizes are used to match patient weight, then tidal volume precision is improved, but device complexity and storage requirements increase
Solution Approach 1:
The device uses a single resuscitation bag that can be adjusted to function as multiple sizes through an adjustable bellows mechanism. The bellows can be configured to deliver different tidal volumes appropriate for various patient weights (adults, children, infants), eliminating the need for multiple separate bags while maintaining precision in tidal volume delivery.
Solution Approach 2:
The adjustable bellows mechanism allows the same physical device to dynamically adapt its capacity to match different patient requirements. The bellows can be adjusted during or before use to the appropriate size, providing multi-functionality without requiring multiple discrete devices, thus reducing complexity and storage needs.
3Productivity
If the medical professional compresses the bag harder to deliver more air, then ventilation effectiveness is improved, but the risk of over-inflation and lung injury increases
Solution Approach 1:
The adjustable bellows is configured to deliver a predetermined, safe tidal volume that is optimized for each patient size category. By matching the bellows capacity to the patient's lung size, the device ensures adequate ventilation without the risk of over-inflation, even when the professional applies force during compression.
Solution Approach 2:
The device incorporates visual indicators or measurement markings on the bellows that allow the healthcare provider to monitor the intended tidal volume delivery. This feedback mechanism ensures that the compression applied results in the correct volume delivery, preventing both under-ventilation and over-inflation while maintaining effectiveness.
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 ensures accurate and consistent tidal volume delivery, minimizing the risk of lung injury by allowing for precise adjustment and preventing over-ventilation, while also reducing the need for multiple device sizes, thus optimizing storage and ease of use in emergency settings.
Implementation Method 1
a bellows with two opposing ends, one opposing end coupled to the stationary frame and the remaining opposing end coupled to the moving frame
Implementation Method 2
A means for adjusting the tidal volume is coupled to the moving frame
Data Source
AI summary
A device and method for adjusting a tidal breath delivered to a patient. The device includes a moving frame which is configured to move over a stationary frame that is nested within the moving frame itself. Disposed between the moving frame and the stationary frame is a compressible bellows which delivers a tidal breath to the patient each time the moving frame is passed over the stationary frame. The specific volume of the tidal breath that is delivered may adjusted according to the estimated weight of the patient, thereby preventing over inflation of the patient's lungs while undergoing treatment. To adjust the tidal breath volume, the user quickly changes the relative position of a slide adjuster which dictates the range of possible movement between the moving frame and the stationary frame, thereby limiting the volume of air/oxygen which may be drawn into the bellows.