The Ethnocare Overlay is a prosthetic device that allows users to instantly adjust the fit of their prosthetic socket to accommodate for limb volume fluctuation, and activity level changes throughout the day thus maintaining appropriate socket fit without having to doff the prosthesis.
The Overlay is compatible with most liners and sockets and can be used with different suspension methods, such as distal fixation (pin), sleeve, and both active and passive vacuum systems.
Personalized fit
The Overlay is a stretchy and breathable textile sleeve featuring a unique air expansion system for a customized, comfortable and uniform fit in the socket.
Retrofit sizing
The Overlay incorporates advanced fabric technology with a total thickness of just under one millimeter. It's designed to be compatible with most liners and sockets, allowing you to continue using your existing equipment without disruption.
Air expansion system
The Overlay incorporates an air expansion system as a replacement for prosthetic stockings, enabling more effective residual limb volume management.
The fit can be adjusted without removing the prosthesis, as air is evenly distributed within the socket to adapt to various residual limb morphologies.
The Overlay is intended to be worn over the liner and slid inside the existing socket. It features a breathable circumferential textile structure with an integrated air expansion system, located on the product's posterior, medial and lateral aspects, ensuring proper surrounding and alignment of the limb inside the socket. A proximally positioned built-in pump and release valve enable the patient to effortlessly self-manage the fit quality and comfort of their socket by inflating or deflating the air expansion system. An external air pump is also provided for faster inflation.
The air expansion system consists of a series of interconnected cells that allow air to flow evenly within the socket, filling spaces only where necessary. Since certain regions of the
limb experience greater variability in volume, the use of air, a compressible and easily moveable fluid, effectively compensates for these fluctuations and creates a uniform fit inside the socket.
The Overlay helps clinicians and patients efficiently address fitting issues caused by daily volume fluctuations and/or transitions and variations in the size and shape of the patient’s residual limb. It serves as an effective alternative to prosthetic socks, adjustable sockets, and internal socket padding by filling voids*, improving fit*, enhancing suspension*, relieving pressure points (especially at the distal end), and reducing potential skin irritations and friction. This reduces socket issues that can disrupt ADLs.
*Badaire, P., Robert, M. T., & Turcot, K. (n.d.). The
Overlay: A solution for volume variations in transtibial amputation. (Cirris), Université Laval. https://hubs.ly/Q02BZC570
*Ethnocare. (2023). Clinical Evaluation Report Overlay. https://hubs.ly/Q02BVPxF0
Patient Populations - The Overlay is suitable for patients at all functional levels K1 to K4 (K-levels).
- Mature Amputees: Patients often have atrophied limbs with sensitive areas, making socket fit challenging. The Overlay
provides targeted cushioning and expansion to offload pressure from sensitive areas and apply it to pressure-tolerant ones. - Newly Amputees: Commonly, newly amputated limbs undergo a reduction in size, shape, and volume at an accelerated rate. The Overlay can be used to help manage these more consistent and rapid volume changes as opposed to having
to make up for this loss with numerous sock layers. - Diabetes or Vascular Disease Patients: Patients with these conditions can experience challenges with the management of prosthetics socks and socket fit. The ease of use of the Overlay can benefit those patients.
- Traumatic Amputees: Traumatic amputations often result in more scar tissue and irregularly shaped residual limbs, making optimal socket fitting more challenging.
- Dialysis Patients: Dialysis patients experience important limb volume fluctuations between and after dialysis treatments.
- Cancer Patients: Patients with amputation due to cancer often return to their pre-diagnosis activity level. However, cancer
medications often cause fluctuations in limb volume. - Patient that experiences “Bell clapping” (Distal portion of the socket is loose and the proximal portion fits snugly). The Overlay provides targeted cushioning to reposition bony anatomy and accommodate distal limb volume.