A prosthetic foot including a continuous body extending from a proximal end to a distal end. The body includes an anterior surface, a posterior surface opposite the anterior surface, and a fin on the posterior surface. A prosthetic foot can include a first footplate and a second footplate. The first footplate extends between a proximal portion and a distal portion. The proximal and distal portions of the first footplate are configured to operatively engage a support surface during ambulation. The second footplate extends between a proximal portion and a distal portion. The distal portion of the second footplate is coupled to the first footplate at an intermediate location between the proximal and distal portions of the first footplate. The second footplate incudes an anterior surface, a posterior surface opposite the anterior surface, and a fin on the posterior surface.

A prosthetic system includes a prosthetic foot with a foot member defining a first end portion, a second end portion, and an intermediate portion defining a curvature and extending between the first and second end portions. A pump mechanism is coupled to the foot member. The pump mechanism includes 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. A movable member includes a first portion coupled to the membrane and a second portion arranged to slidably engage the foot member. Relative movement between the first and second end portions moves the first portion of the movable member relative to the housing and slides the second portion along a length of the foot member to shift the pump mechanism between the original and expanded configurations.

The invention relates to a method for controlling a prosthesis or orthesis of the lower extremity, which prosthesis or orthesis comprises an upper part (10) and a lower part (20) that is connected to the upper part (20) via a knee joint (1) and is mounted so as to be pivotable relative to the upper part (10) about a joint pin (15); wherein an adjustable resistance device (40) is situated between the upper part (10) and the lower part (20), by means of which resistance device a flexion resistance (Rf) in an early and middle standing phase is modified, during walking, on the basis of sensor data, following initial heel contact up to the middle standing phase; wherein, following the initial heel contact, the flexion resistance (Rf) is increased to a value at which further flexion is blocked or at least slowed; wherein the progression over time of the flexion resistance increase and/or the maximum achievable flexion angle (Af) is modified on the basis of the inclination of the ground or a height difference (ΔH) to be overcome.

Prosthetic coupling interfaces and methods of use are disclosed herein. An example system can include an external fixator apparatus, a prosthetic appendage assembly, and a prosthetic coupling interface for connecting the external fixator apparatus with the prosthetic appendage assembly.

Techniques are provided for using machine learning methods to predict user preferences with respect to robotic assistive prostheses and/or custom tune the robotic assistive prostheses for individual users based on the predicted user preferences. A training biomechanical dataset, including historical biomechanical sensor data for a robotic assistive prosthetic device operating using a plurality of tuning settings at a plurality of speeds, and a training user preference dataset including historical user tuning preference data for the robotic assistive prosthetic device for each respective tuning setting and speed, are generated. A machine learning model is trained using the training biomechanical dataset and the training user preference dataset. The trained machine learning model is applied to new biomechanical sensor data associated with a particular user to predict the user's tuning preferences for the robotic assistive prosthetic device, and the settings of the device are automatically modified based on the predicted tuning preferences.

The present disclosure includes prosthetic devices, including implants for joints and external prosthetics. The prosthetic devices allow for full articulation of the joint, while absorbing impact of the components during normal use that will reduce wear on the device components and prolong life. The device may include a bone implantable component and a bearing component having an articulation surface that is sized and shaped to substantially mate with at least a portion of the bone implantable component and a damping mechanism that includes a contact member disposed at least primarily inside a cavity; a biasing member biasing the contact member toward an upper aperture of the cavity and means for capturing the contact member within the cavity.

A knee prosthesis system including a knee prosthesis, an actuator and a controlling unit. The knee prosthesis includes a thigh segment and a shank segment. The actuator rotatably connects the shank segment and the thigh segment. The actuator is configured to controllably assume a powered knee behavior to generate knee motion or a passive knee behavior to resist knee motion. The controlling unit includes a finite-state control structure. The controlling unit electrically communicates with the actuator. The control structure includes at least three passive states and at least one powered state. The passive states include a passive stance-resistance state, a swing-flexion state, and a swing-extension state and the at least one powered state includes at least one of a swing-assistance state, a stance-assistance state, and a powered-swing state.

Gearwheel transmission comprising a first stage and a second stage, the second stage being a differential gearing comprising a planetary gear train system which is executed in a quasi duplicated form, wherein a first component is forming a torque resisting means, wherein a second component is interconnected or interacting with an output shaft, the overall transmission efficiency in the first stage being higher than in the second stage and/or the overall capacity for transmitting torque in the second stage being higher than in the first stage.

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

A prosthetic socket system having an interchangeable distal end, includes a prosthetic socket defining a substantially rigid base, and a funnel formed from a polymeric material and removably attached to the base of a prosthetic socket. The funnel is arranged to be positioned in the base, and is configured and dimensioned to accommodate a distal end of a residual limb.