With the Harmony® system, increased negative pressure between the prosthesis socket and liner creates an optimum connection between the prosthesis and residual limb.

The improved Harmony® e-pulse was released in September 2009 with three main performance and functional improvements – durable filtration, airtight performance and ability to flush with distilled water.
The new inline filter is more durable and easier to position. The new filter is easy to install and can replace the old filter at the customer’s convenience (please contact your local Customer Service). Significant airtight performance was achieved with internal changes. Furthermore the new Harmony® e-pulse received a flushing function to internally clean the system with distilled water in the field (just in case that some debris finds its way into the system).
In order to implement the New Flushing Mode the massage mode had to be eliminated from the Harmony e-pulse.
With the Harmony® system, increased negative pressure between the prosthesis socket and liner creates an optimum connection between the prosthesis and residual limb. Proprioception is enhanced and strain on the residual limb is reduced. In addition, increasing the vacuum reduces the daily volume fluctuations of the residual limb. This effective system to connect a prosthesis has been available to transtibial amputees since 2001 in the form of the mechanical Harmony® pumps (e.g. P2 or HD). Their effectiveness has already been proven by several studies.
Since some basic requirements must be met for fittings with mechanical pumps, Otto Bock has developed a new pump: The Harmony® e-pulse. It features:
The non-weight-bearing component can be positioned in various locations on the prosthesis (e.g. on the socket or tube adapter). It offers four preset negative pressure levels up to a maximum of approximately 600mbar (18inHg).The system is also small and lightweight, and features a low noise level as well as intuitive operation. This allows your customers to benefit from the advantages of the system without bothersome side effects.
