An electromyography (EMG) sensor for a wearable device, such as a prosthetic device attachable to a residual limb, includes a flexible substrate comprising an elongated portion and an electrode portion. At least two electrodes are disposed at a surface of the electrode portion of the flexible substrate, and leads from the at least two electrodes extend through the elongated portion of the flexible substrate.

Systems and methods for a running controller for a lower limb device including at least a powered knee joint are provided. The method includes collecting real-time sensor information for the lower limb device and configuring the lower limb device to a first state in a finite state model for an activity mode including the running mode. The method further includes, based on the sensor information, transitioning the lower limb device from a current state to a subsequent state in the finite state model for the detected mode when a pre-defined criteria for transitioning to the subsequent state is met, and repeating the transitioning until the activity mode changes. In the system and method, the finite state model includes at least one stance state and at least one swing state, where the at least one stance state includes at least one absorption state and at least one propulsion state.

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.

The present invention is directed to an autonomous exoskeleton device that includes one or more actuators, one or more controllers, one or more sensors with one or more unidirectional transmissions. The present invention provides a mechanical joint in parallel with a biological joint. The exoskeleton device preferably includes and electric motor and winch, chain, belt, cam transmission or other mechanism for providing unidirectional force to assist rotation about the biologic joint. Moreover, a controller, a motor angle sensor, joint angle sensor and/or force sensor may be used for additional control and monitoring of the device. The motor may be any type of motor, but is preferably brushless in configuration where its diameter is larger than its length to provide a compact and lightweight exoskeleton device.

The invention relates to a prosthetic foot with a foot part 2 and a lower leg part 4 that is connected to the foot part 2 such that it can be pivoted about a pivot axis 6 and that can be locked in various pivot angles relative to the foot part 2,the connection between the lower leg part 4 and the foot part 2 having a clearance in the pivot direction when the foot part 2 is locked on the lower leg part 4, the prosthetic foot having at least one friction element 14 arranged between the foot part 2 and the lower leg part 4 and applying a frictional torque that counteracts a pivoting of the foot part 2 relative to the lower leg part 4 when the foot part 2 is locked relative to the lower leg part 4.

The present disclosure relates to an orthotic (or brace) and/or prosthetic ankle joint and associated methods adapted to enable adjustment of a talus section or ankle portion or brace with respect to a tibial section of the orthotic (or brace) and/or prosthetic ankle joint. The talus section or ankle portion of the orthotic (or brace) and/or prosthetic ankle joint is movably coupled to the tibial section with the alignment between the talus section and tibial section being adjustable between various positions by disengagement or engagement of a lock of an adjustment mechanism. As the lock is disengaged, the talus section is enabled to pivot with respect to the tibial section in at least one direction as the user moves along a slope.

A prosthetic foot comprising an internal keel (1) and an encapsulation material (2). The keel (1) is made of two parts (3,4), namely an elastic ankle (3) and an elastic blade (4), to ensure a behaviour of the prosthesis as close as possible to the biomechanics of a sound human foot (plantar flexion, dorsiflexion, inversion, eversion). The materials and design used for the keel (1) allow storing and releasing strain energy at the right phases of the gait cycle. Elastomeric foams act as safety features in specific areas to prevent keel overloading. The keel (1) is preferably encapsulated into two types of foam to fill internal space and as cosmetic feature as it has a human foot shape.

A leg orthosis including a securing device for securing the leg orthosis to the body of a orthosis user and at least one articulation device by means of which a first orthosis component, which can be fixed to an extremity of the user, is mounted such that it can pivot with respect to the securing device. The articulation device includes at least three joints, which respectively comprise at least one pivot axis, and each pivot axis intersects at a common point.

Systems and methods of operating a lower limb device having at least a powered joint are provided. A method includes configuring the device to a first state in a finite state model for a current activity mode including a stair ascent mode or a stair descent mode. The method also includes, based on real-time sensor information, transitioning the device between different states in the finite state model when pre-defined criteria for transitioning among the different states are met. In the method, the finite state model for stair ascent includes lifting and swing phases, where the lifting phase includes a powered knee extension and a powered ankle push-off. The finite state model for stair descent includes yielding and swing states, where the swing states include providing a powered plantarflexion of the powered ankle joint and the yielding states include providing a resistive and passive plantarflexion of the powered ankle joint.

An asymmetric linear actuator is provided which integrates a hydraulic dissipater and an electric motor and power screw which generates small forces. The actuator is configured so that an electric motor drives a power screw which drives a rod through a cylinder to provide linear actuation. The cylinder is fluid-filled and incorporates a piston that separates the cylinder into a first and second fluid chamber which are filled with a first and second volume of working fluid. Movement of the piston and rod assembly results in fluid movement between the first and second volumes of working fluid and through the fluidic restriction. The fluidic restriction can be proportionally controllable via an electric motor which enables controllable power dissipation via control of the fluidic restriction motor and controllable power generation via control of the power screw motor.