The Active Vacuum Socket System

A comfortable socket is critical for an amputee to lead a full and active lifestyle. If the socket doesn’t fit comfortably, it can affect the health and wellbeing of the residual limb. Active vacuum solutions for transtibial (and transfemoral) amputees provide the ultimate socket comfort. By means of a pump unit, a vacuum is created between the suspension sleeve and the liner by the air being actively pumped out of the socket during an amputees' natural walking pattern. This vacuum makes for an unprecedented socket fit.

Studies have shown that active vacuum socket solutions prevent volume loss and minimise volume fluctuations in the residual limb throughout the day. The excellent connection between the prosthesis and the residual limb reduces tissue elongation and displacement, and thereby prevents limb/socket movements and improves proprioception. Furthermore, Studies carried out at St. Cloud State University in Minnesota (USA) have shown that a prosthetic fitting using this active vacuum solution promotes blood circulation in the residual limb.

The benefits of Active Vacuum

The benefits of Active Vacuum

Skin Protection

Movement within the socket can lead to sores and abrasions. With active vacuum solutions, the residual limb is secured comfortably and intimately within the socket.

This ultimate socket fit reduces sheer forces, meaning the skin is protected, minimising the risk of skin damage.

Related Systems

Related Systems


Harmony P4 Vacuum System

The Harmony system provides an active vacuum to ensure a firm connection between the prosthesis and residual limb. The Harmony P4 pump is especially suitable for active users.


Harmony P3 Vacuum System

The vacuum system with the mechanical Harmony P3 pump provides good adhesion in the prosthetic socket that minimises impacts and tensile forces.


Harmony E2: Electronic Vacuum Pump System

The Harmony E2 is an electric pump option for the Harmony System, a proven and established active volume management system for amputees.


Dynamic Vacuum System

The Dynamic vacuum system represents a new generation of active vacuum systems. It keeps your prosthesis securely in place, yet it is small and easy to handle. The vacuum also dynamically adapts to your walking speed.




Active Vacuum Solutions

Download (PDF 13.27 MB)

How can we help you?