An ankle module for a prosthetic foot can have an adapter portion pivotally coupled to a base portion. The base portion can be coupled to the prosthetic foot. The adapter portion can have a coupling member that removably couples the prosthetic foot to a prosthetic pylon or socket. The adapter portion can also have cylinders housing pistons slidably displaceable within the cylinders. An actuator is selectively actuatable to place the cylinders in fluid communication, allowing a fluid to flow between the cylinders as an angular position of the adapter portion is adjusted relative to the base portion, thereby adjusting the dorsi-plantar position between the adapter portion and the base portion of the ankle module. The actuator can be selectively actuatable to fluidly isolate the cylinders from each other so that the angular position of the adapter portion relative to the base portion remains substantially fixed.

A prosthetic foot comprises an attachment member and two or more flexible members. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The two or more flexible members can be rotatably attached to the attachment member by rotatable joints such that the flexible members can both rotate and flex relative to the attachment member when the prosthetic foot contacts the ground.

A prosthetic system includes a prosthetic foot having an upper foot element with a concave-forward facing portion and foot portion extending forwardly therefrom. An intermediate foot element is disposed below the upper foot element and has a front portion coupled to the foot portion of the upper foot element. A lower foot element is disposed below the intermediate foot element. A pump system is coupled to the prosthetic foot and comprises a pump mechanism including a housing defining a cavity, and a membrane situated in the cavity. The pump mechanism is movable between an original configuration and an expanded configuration. An arm member is connected to the pump mechanism and operatively coupled to the intermediate foot element. The arm member is arranged to move the pump mechanism toward at least the expanded configuration upon movement of the intermediate foot element relative to the upper foot element.

A prosthetic foot comprising a foot part, a proximal connecting member which is swiveled to the foot part and an adjustment device with which the foot part can be adjusted relative to the connecting member, and at least one position sensor associated with the adjustment device and being coupled to a signal generating element.

A prosthetic foot comprises an attachment member and two or more flexible members. The attachment member can include a connector configured to connect the attachment member to a user or another prosthetic device. The two or more flexible members can be rotatably attached to the attachment member by rotatable joints such that the flexible members can both rotate and flex relative to the attachment member when the prosthetic foot contacts the ground.

The invention relates to a method for producing an artificial foot, comprising a medial plane (M) in a longitudinal axis, in which a nominal foot length (1) is defined as a distance from a heel to a foot tip of a natural foot replaced by the artificial foot, and designed having a top side connecting piece (4) for torsionally rigidly connecting a foot insert (2) extending substantially over the length of the foot (1), and contacting two contact surfaces (6, 7) over the length (1), of which a first heel side contact surface (7) is located in the heel area and a second hall side contact surface (6) is located in the hall area, and designed so that the connecting part (4) is connected to the contact surfaces (6,7) of the foot part by means of spring connections.

A prosthetic device includes a first place including a first end portion arranged for attachment to a foot member of a prosthetic foot. A second end portion is arranged to extend freely over at least a portion of the top surface of the foot member. A second plate includes a first end extending over a heel member of the prosthetic foot and a second end extending over and attached to the second end portion of the first plate. The second end portion of the first plate situated between the foot member and the second plate. A pump mechanism includes a housing secured to the second plate and a membrane operatively connected to the first place and the housing. The pump mechanism defines a fluid chamber between a bottom surface of the housing and a top surface of the membrane.

A prosthetic system includes a prosthetic foot having an upper foot element with a concave-forward facing portion and foot portion extending forwardly therefrom. An intermediate foot element is disposed below the upper foot element and has a front portion coupled to the foot portion of the upper foot element. A lower foot element is disposed below the intermediate foot element. A pump system is coupled to the prosthetic foot and comprises a pump mechanism including a housing defining a cavity, and a membrane situated in the cavity. The pump mechanism is movable between an original configuration and an expanded configuration. An arm member is connected to the pump mechanism and operatively coupled to the intermediate foot element. The arm member is arranged to move the pump mechanism toward at least the expanded configuration upon movement of the intermediate foot element relative to the upper foot element.

A prosthetic foot can have an ankle unit with semi-active adjustable stiffness. In one example, the adjustable stiffness is in the sagittal plane. The ankle stiffness can be varied by the ankle unit in response a user input, which can be received via a wireless communication device. The ankle unit can include two load application locations for one or more cantilever springs so as to provide different stiffness in plantarflexion and dorsiflexion. The positions of the two load application locations can be varied in order to vary the stiffness.

A low profile prosthetic foot comprises a foot member extending at an incline from an anterior portion to a posterior portion thereof and configured to flex during motion, and an adapter mounted solely at a posterior section thereof to the posterior portion of the foot member so that the adapter's anterior section can move relative to the foot member and roll-up onto the foot member during motion.