Inflatable Chamber Surface Layout for Pressure Ulcer Relief
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Solution Overview
Problem
Current support surfaces for preventing pressure ulcers lack the ability to control the spatial relationship between the patient and the therapeutic surface, leading to ineffective pressure distribution and increased risk of decubitus ulcers in bed-bound or wheelchair-bound individuals.
Innovation Solution
A system with a pressure-mitigating contact surface featuring independently pressurized relief chambers in a geometric pattern, combined with elevated side support portions and a wedge portion, actively orients the patient's anatomy to reduce contact pressure by alternating pressure in the chambers and separating lower extremities from the support surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If current support surfaces are used, then basic pressure relief is provided, but the spatial relationship between the patient and the therapeutic surface cannot be controlled
Solution Approach 1:
The support surface is divided into multiple independently pressurized chambers arranged in a geometric pattern, allowing different regions to be controlled independently. This segmentation enables precise spatial control over pressure distribution while maintaining overall pressure relief functionality.
Solution Approach 2:
The support surface incorporates dynamically adjustable pressure chambers that can change their pressure states in response to patient position and therapeutic needs. This dynamic control allows the system to adapt the spatial relationship between patient and therapeutic surface, resolving the contradiction between ease of operation and adaptability.
2Strength
If steady pressure is applied to one location, then support is provided, but ischemia and skin breakdown occur
Solution Approach 1:
The independently pressurized chambers are activated in alternating sequences, creating periodic pressure cycles. This periodic action ensures that no single location experiences continuous steady pressure, thereby preventing ischemia and skin breakdown while maintaining adequate support through the alternating pressure application to different chambers.
Solution Approach 2:
Different chambers in the geometric pattern provide localized pressure relief tailored to specific anatomical regions. By applying pressure relief locally to different areas in an alternating sequence, the system maintains overall support capability while preventing harmful localized ischemia and skin breakdown.
3Ease of operation
If patients remain in the same position, then positioning simplicity is maintained, but pressure ulcers develop
Solution Approach 1:
The system automatically alternates pressure between chambers without requiring patient repositioning. This self-service mechanism maintains positioning simplicity for the patient while reliably preventing pressure ulcers through automated pressure redistribution, resolving the contradiction between ease of operation and reliability of ulcer prevention.
Solution Approach 2:
The automated alternating pressure cycles provide periodic pressure relief to different anatomical regions, enabling reliable pressure ulcer prevention while the patient remains in a simple, unchanged position. This periodic action eliminates the need for manual repositioning while maintaining high reliability in ulcer prevention.
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
Effectively reduces pressure on specific anatomic regions, enhancing blood flow and preventing pressure ulcers by ensuring no area is subjected to constant pressure, thereby minimizing the risk of tissue damage and infection.
Implementation Method 1
independently pressurized relief chambers configured in a geometric pattern that redistributes contact pressure away from a specific anatomic region of a patient's body when pressure in the independently pressurized relief chambers is alternated
Implementation Method 2
a wedge portion interconnected on the base material and configured to elevate the patient's lower extremities to prevent deep venous thrombosis
Data Source
AI summary
Described herein are systems and apparatuses for enhanced comfort through contact pressure reduction. In particular, the systems and apparatuses disclosed herein prevent or otherwise mitigate pressure by actively orienting a patient over an anatomy-specific pressure-mitigating contact surface on which the patient rests. A pressure-mitigating contact portion of the contact surface includes a plurality of independently pressurized chambers configured in a specific geometric pattern that is designed to mitigate contact pressure between a support surface (e.g., bed or chair) and a specific anatomic region of a patient's body when the specific anatomic region of the patient's body is oriented over an epicenter of the geometric pattern. Additionally, a plurality of elevated side support portions and a wedge interconnected on the base material are configured to actively orient the specific anatomic region of the patient's body over the epicenter of the geometric pattern.