The invention relates to prosthetic foot assembly comprising a prosthetic foot and a series elastic pneumatic actuator connected to the prosthetic foot, the series elastic pneumatic actuator being configurable between a first configuration in which the prosthetic foot is displaced to a first, rest position and a second configuration in which the prosthetic foot is displaced to a second position.

The invention relates to prosthetic foot assembly comprising a prosthetic foot and a series elastic pneumatic actuator connected to the prosthetic foot, the series elastic pneumatic actuator being configurable between a first configuration in which the prosthetic foot is displaced to a first, rest position and a second configuration in which the prosthetic foot is displaced to a second position.

Systems, methods and apparatuses including an insert having a body with a plurality of bladders therein, a proximal surface and a distal surface. Two or more of the plurality of bladders are in fluid communication with one another. The plurality of bladders are expandable and contractible in volume. The proximal surface shapable by a change in the volume of one or more of the plurality of bladders. The proximal surface is configured to interface with a first arthroplasty implant of the patient. The distal surface is spaced from the proximal surface by the body and is configured to interface with a second arthroplasty implant of the patient.

A prosthesis socket having a proximal insertion opening and an inner circumference which at least partially surrounds a limb stump, at least one connection device for a prosthesis component, which is connectable to the prosthesis socket, at least one actuator operable to change the inner circumference of the prosthesis socket, and at least one sensor coupled to a control device, wherein the control device is connected to the actuator and activates or deactivates same, depending on the received sensor signals, and to a method for adjusting the inner circumference.

The conformable convection liner is for use with a prosthetic system and configured to be donned over a residual limb of an amputee. The conformable convection liner includes a tubular body formed from an elastomeric limb-conforming material and including an outer surface and inner surface extending between a proximal end and a distal end thereof. A seal area is defined at the proximal end of the tubular body on the inner surface thereof. An outlet port is positioned at the distal end of the tubular body between the inner and outer surfaces thereof. An inner regulated environment is defined between the inner surface of the tubular body and the residual limb, the inner regulated environment extending between the proximal end of the tubular body with the seal area and the distal end of the tubular body with the outlet port. One or more internal convection guides are formed in the elastomeric limb-conforming material on the internal surface of the tubular body below the seal area and configured to promote the flow of fluid within the inner regulated environment towards the outlet port at the distal end of the tubular body.

A prosthetic joint and a method of controlling dorsiflexion and plantarflexion of the hydraulic prosthetic ankle joint. The method includes generating ground reaction forces with a hydraulic prosthetic ankle, wherein the prosthetic hydraulic ankle comprises a first chamber and a second chamber, and the ankle is connected to a prosthetic foot; rotating the prosthetic foot in response to the ground reaction force; transferring fluid between the forward and rear chambers in response to rotation of the foot; providing a feature to occlude or partially occlude the fluid transfer between chambers; providing a non-electronic mechanism for controlling the flow responsive to both a position of the joint and a rate of change of position of the joint, and wherein the mechanism is arranged such that a dwell at a particular joint location or locations will occlude the flow path.

A robotic joint comprises a first link, a middle link, a torque generator, a second link, and a locking mechanism. Different ends of the middle link are rotatably coupled to the first link and the second link. The torque generator is coupled to the first link and the middle link and is configured to produce a torque between these links. The locking mechanism is switchable between a locking state and an unlocking state. In the unlocking state, the locking mechanism allows free rotation of the second link relative to the middle link in the first and second rotation directions. In the locking state, the locking mechanism is configured to impede rotation of the second link relative to the middle link in the first rotation direction and to allow rotation of the second link relative to the middle link in the second rotation direction opposite of the first rotation direction.

A prosthetic or orthotic device has an elongate frame that houses electronics and an actuator rotatably mounted to the frame. The actuator can rotate in an anterior-posterior direction about a medial-lateral axis and includes magnetorheological (MR) fluid and a coil operable to selectively apply a magnetic field to the MR fluid to vary its viscosity and thereby vary a torsional resistance of the actuator about the medial-lateral axis. The device contains a layered control system that makes use of data collected by the embedded sensors in a prosthetic device for intent recognition, management, and actuator control. The layered control system uses a Luenberger observer for estimating joint velocity and a heuristic torque-setpoint component to control the function of a MR actuated knee prosthesis.

A prosthetic or orthotic device has an elongate frame that houses electronics and an actuator rotatably mounted to the frame. The actuator can rotate in an anterior-posterior direction about a medial-lateral axis and includes magnetorheological (MR) fluid and a coil operable to selectively apply a magnetic field to the MR fluid to vary its viscosity and thereby vary a torsional resistance of the actuator about the medial-lateral axis. The device contains a layered control system that makes use of data collected by the embedded sensors in a prosthetic device for intent recognition, management, and actuator control. The layered control system uses a Luenberger observer for estimating joint velocity and a heuristic torque-setpoint component to control the function of a MR actuated knee prosthesis.

An orthopedic knee joint having an upper part with upper connecting features, a lower part which is mounted pivotably on the upper part and has connecting features for prosthetic components, and a stop for limiting an extension movement. The stop is coupled to an adjusting device, which is coupled to a control device that actuates the adjusting device as a function of sensor data and changes the position of the stop. If the knee joint is provided with an adjustable extension stop position, the extension stop can be shifted forward for walking which results in a greater inclination at heel strike in order to flex the knee joint and, therefore, increased damping upon initiation of the stance phase. For standing, the adjusting device can be activated so that the extension stop is reversed, such that a statically more secure orthosis or prosthesis set-up can be obtained.