AvalonK2 VAC Foot

Comfortable and Controlled Mobility

AvalonK2 VAC is designed specifically for the complex needs of limited community ambulators. Through a combination of award winning hydraulic ankle technology, a unique optimized keel and an elevated vacuum system, AvalonK2VAC is a prosthesis that works with the user to enhance comfort, security and stability.

Limited community ambulators are more susceptible to falls, so an important factor in their prosthesis is to increase security and stability right from the socket connection through to the ankle and foot. By harnessing natural ankle motion, AvalonK2VAC quietly creates elevated vacuum. For the user this reduces relative movement and the risk of skin breakdown, while improving proprioception, and providing greater control of the prosthesis.

With every step, the wearer presses their weight into the prosthesis, initially expelling air through a one-way valve. Simultaneously the ankle plantarflexes, actively drawing air out of the socket. This air is held in the vacuum chamber and expelled through a secondary one way valve as the tibia progresses and the ankle dorsiflexes. The result is greater residual limb volume control and an improved connection between the residual limb and socket.

Hydraulic ankles can help align the body interface with the ground, allowing for more natural movement and posture. By continuously adjusting to absorb energy, AvalonK2VAC allows for an efficient roll-over, remaining in a dorsiflexed position through swing, increasing ground clearance to help reduce the risk of falls.

Activity level 2 walkers tend to move more slowly, with a shorter stride length. It is important the foot is designed to accommodate these changes in gait and provide a smooth rollover. The optimised keel shape of AvalonK2VAC considers such requirements and encourages a consistent, stable, and comfortable rollover so this group of users can walk more easily and move around confidently.

AvalonK2VAC has an innovative, lightweight design including a low build height as no external power source is required. With no batteries or pump to worry about, it is quiet and easy to fit.