Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Ralf Kloos

Urs Schneider

Kai Von Lübtow

Armin Grab

Julia Grunwald

The invention relates to a prosthetic device (), in particular a foot prosthesis, for fitting leg amputees, with a universal joint mechanism (), which couples a shaft () with a treading attachment () through an articulation, wherein the universal joint mechanism () comprises a joint element () supported such that it is rotatable about a first rotational axis (C) and a second rotational axis (D) differing therefrom. For more accurate modeling of the natural gait of a healthy human foot, the invention provides that the universal joint mechanism () comprises a shaft-side joint fork () coupleable with the shaft () and a treading-side joint fork () coupled via the joint element () through an articulation with the shaft-side joint fork (), wherein the shaft-side joint fork () is swivellable about the first rotational axis (C) and the treading-side joint fork () about the second rotational axis (D) relative to the joint element (), and wherein the swivel movements of shaft-side and treading-side joint fork () relative to the joint element () are carried out against the resistance of at least one damping element () proximal to the joint element.

Growing community of inventors

Heroldstatt, Germany

Ralf Kloos