There are a wide range of knee joints available on-demand.
The joint that is used to a certain prosthesis depends on the activity level and the weight of the user.
In case of a simple modell the user can "open and close" the knee with a locking mechanism to sitting or standing position.
The next category is the so-called joint with brake-effect, which makes the movements (back and forward) slower and more natural-looking with the help of the brake-effect.
The simple joint generally has one axle, which makes the movement of the joint look a bit unnatural.
To avoid this we use joint with more axles, which imitates the special "rolling" movement of the knee, making the walk look more life-like.
The high tech joints meet all requirements listed above.
Joints can not only fit to short or long stump, but to an exarticulated stump as well. |