Description
The Ethnocare Overlay TT is an innovative transtibial prosthetic volume-management system designed to help compensate for changes in residual-limb volume throughout the day.
Unlike traditional volume-management methods that rely on adding or removing prosthetic socks, the Overlay uses air-based adjustment to help improve socket fit, stability and comfort. The system is worn over the residual limb and allows the user to adjust fit as limb volume changes, helping maintain more consistent contact between the limb and socket.
Designed for below-knee amputees, the Overlay TT can be used with a range of suspension systems including distal fixation, suspension sleeves, passive vacuum and active vacuum. It is suitable for users across K1 to K4 activity levels, making it a versatile option for both low-activity and highly active prosthetic users.
Key Features
- Air-based residual-limb volume management
- Helps accommodate daily changes in limb volume
- Supports improved socket fit and stability
- May reduce the need to repeatedly add or remove prosthetic socks
- Allows users to adjust fit during the day
- Compatible with multiple prosthetic suspension systems
- Suitable for low, moderate and high activity levels
- Designed specifically for transtibial amputees
- Can be incorporated into existing prosthetic socket systems
Compatible Suspension Methods
- Distal fixation
- Suspension sleeve
- Passive vacuum
- Active/elevated vacuum
Activity Level
Suitable for K1, K2, K3 and K4 prosthetic users.
Materials
Constructed from a combination of:
- Nylon
- Elastane
- TPU
- Spring steel
- Silicone
Available Circumference Sizes
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OV23: 23.5–28.5 cm
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OV28: 28.5–35.5 cm
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OV35: 35.5–43.5 cm
Available Lengths
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Short (SH): 14–20 cm
-
Long (LG): 20+ cm
Clinical Application
The Ethnocare Overlay TT is particularly useful for transtibial users who experience residual-limb volume fluctuations, inconsistent socket fit, pistoning or changes in comfort during the day. By giving the user a practical way to manage socket volume, it can help maintain a more stable and comfortable prosthetic interface without requiring immediate socket modification or replacement.
