University of Pittsburgh researchers have developed an innovative active permeable pressure relieving cushion designed to prevent pressure injuries for individuals with high risk, such as those with spinal cord injuries. This novel cushion utilizes air fluidization when small particles like beads are circulated using flowing air which creates properties similar to liquid to provide effective pressure distribution, blood flow stimulation, and temperature regulation, all while requiring a reduced volume of air.
Description
The active hybrid cushion represents a significant advancement in the prevention and management of pressure injuries. It offers a fail-safe mechanism and is designed to coordinate the load distribution across both the backrest and seat cushion, unlike traditional seat cushions which focus solely on the seating surface.
Applications
- Spinal Cord Injury Management
- Long-term Wheelchair Use
Advantages
The active permeable pressure-relieving cushion offers several key advantages over existing products. It utilizes air fluidization when small particles, like beads, are circulated using flowing air within a semi-permeable cover, which not only reduces the air volume needed but also provides blood flow stimulation and temperature regulation. This design ensures that the cushion remains effective even if part of the system fails, making it a safer and more reliable option for users. Additionally, the coordinated design of the backrest and seat cushion helps distribute the load over a greater surface area, which is particularly important for individuals with severe mobility impairments. These features make the cushion an ideal solution for preventing pressure injuries and enhancing overall comfort.
Invention Readiness
The development of this cushion is supported by extensive design and testing phases. The innovative design incorporates air fluidization when small particles, like beads, are circulated within a semi-permeable enclosure, which have been shown to provide effective pressure distribution and stimulate blood flow, critical factors in preventing pressure injuries. The cushion's fail-safe mechanism has been tested to ensure it continues to provide support even under adverse conditions. Additionally, the design's adaptability was demonstrated through various testing scenarios, including simulations of long-term use by individuals with high risk of pressure ulcers. The prototype has undergone rigorous evaluation to optimize its performance, and the results indicate that this cushion significantly reduces the risk of pressure injuries compared to traditional cushions.
IP Status
https://patents.google.com/patent/WO2023069698A1
