Non-invasive pressure-mitigation apparatuses for improving blood flow and associated systems and methods
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Solution Overview
Problem
Conventional support surfaces fail to effectively control the spatial relationship between patients and the therapeutic surface, leading to the formation of pressure injuries in mobility-impaired individuals due to inadequate pressure distribution, which can result in ischemia, tissue damage, and systemic inflammatory responses.
Innovation Solution
A non-invasive pressure-mitigation apparatus with independently pressurized chambers configured in a specific geometric pattern to actively orient patients over an anatomy-specific contact surface, controlling pressure by inflating or deflating chambers to avoid prolonged vascular compression and promote blood flow, thereby reducing the risk of pressure injuries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional support surfaces are used, then patients can be supported during prolonged periods, but pressure injuries occur due to inadequate pressure mitigation
Solution Approach 1:
The support surface is divided into multiple independently controllable chambers or zones that can be pressurized or deflated separately. This segmentation allows targeted pressure application to specific anatomical regions, preventing pressure injuries while maintaining overall support. The modular chamber structure enables dynamic redistribution of pressure without requiring complete surface replacement.
Solution Approach 2:
The support surface transitions from a static conventional design to a dynamic system that actively adjusts pressure distribution in real-time. Controllers modulate chamber pressures based on patient position, weight distribution, and risk factors, creating a living support system that adapts to changing conditions and prevents pressure injury formation through continuous pressure mitigation optimization.
2Duration of action of stationary object
If steady pressure is applied in one location, then patients can be immobilized for prolonged periods, but ischemia occurs due to inadequate blood flow
Solution Approach 1:
The support system implements periodic pressure cycles where chambers are alternately pressurized and deflated in a rhythmic pattern. This periodic action creates controlled pressure variations that prevent sustained vascular compression, allowing patients to remain immobilized for extended periods while maintaining adequate blood flow through the cyclic pressure relief mechanism that mimics natural movement patterns.
Solution Approach 2:
The system dynamically changes pressure parameters (magnitude, duration, frequency, and distribution) based on patient needs and physiological responses. By modulating these parameters, the system prevents ischemia during prolonged immobilization while maintaining sufficient support, adapting pressure profiles to individual patient characteristics and real-time physiological conditions.
3Ease of operation
If patients are unable to reposition themselves, then prolonged pressure in one location occurs, but pressure injuries result from the inability to alleviate pressure
Solution Approach 1:
The support surface provides self-service pressure mitigation by automatically detecting and responding to pressure distribution patterns without requiring patient intervention. The system monitors contact pressure, identifies high-risk areas, and autonomously adjusts chamber pressures to redistribute load, effectively performing the repositioning function that would otherwise require patient movement or caregiver assistance.
Solution Approach 2:
The system incorporates feedback mechanisms through pressure sensors and controllers that continuously monitor patient-position-surface interactions. This feedback loop enables real-time detection of developing pressure points and triggers automatic pressure redistribution responses, creating a closed-loop control system that prevents pressure injury formation through continuous monitoring and adaptive adjustment without patient involvement.
4Adaptability or versatility
If conventional support surfaces lack spatial relationship control, then patients may migrate on the surface, but pressure injury prevention effectiveness is reduced
Solution Approach 1:
The support surface integrates multiple functions including pressure mitigation, spatial positioning control, and patient orientation into a single unified system. The chamber network serves both therapeutic pressure relief and mechanical positioning purposes, allowing the surface to actively guide patient placement while simultaneously providing pressure injury prevention, thereby enhancing overall reliability through multi-functional integration.
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 apparatus effectively reduces the incidence of pressure injuries by redistributing pressure, enhancing blood flow, and minimizing systemic inflammation, thereby accelerating healing and reducing the need for extensive medical equipment and prolonged hospital stays.
Implementation Method 1
A non-invasive pressure-mitigation apparatus with independently pressurized chambers configured in an anatomy-specific geometric pattern that actively orients patients over a therapeutic surface, controlling pressure distribution by inflating or deflating chambers
Data Source
AI summary
Introduced here are apparatuses and systems for mitigating contact pressures applied to a human body by the surface of an object, such as a chair, bed, or table. A pressure-mitigation apparatus can include a series of chambers whose pressure can be individually varied. When placed between a patient and a contact surface, the pressure-mitigation apparatus can vary the contact pressure on a specific anatomical region of the patient by controllably inflating and/or deflating one or more cell. Moreover, a pressure-mitigation system can be readily integrated into a conventional treatment regimen for a variety of different conditions.