An implantable human-machine interfacing system is disclosed that includes an implantable muscle interface device including a substrate including a first plurality of sensors and a second plurality of amplifiers that capture and amplify, respectively, electromyographic (EMG) signals arising from motor units under control of neural signals representative of volitional limb movements; and a transceiver device connected to the first plurality of sensors that wirelessly transmits signals to an external decoder that produces decoded signals that discriminate motor signals representative of movements of the motor units, wherein the substrate at least partially surrounds a muscle from which the EMG signals arise; and a receiver device that uses the decoded signals for interaction with an external system. The system includes a first plurality of electrodes and a second implantable power source that imparts electrical stimulation to the underlying tissues and sensory axons within for the purposes of sensory feedback and neuromodulation.

A system for control of a prosthetic device includes at least one Inertial Measurement Unit detecting orientation of a user's foot. The at least one Inertial Measurement Unit is in communication with a device module configured to command at least one actuator of a prosthetic device. The at least one Inertial Measurement unit sends output signals related to orientation of the user's foot to the device module and the device module controls the at least one actuator of the prosthetic device based on the signals from the at least one Inertial Measurement Unit.

Systems and methods for controlling a weight bearing member having at least one powered joint are provided. A system includes a velocity reference module for receiving myoelectric control signals from a user during a non-weight bearing mode for the powered joint and generating a velocity reference for the powered joint based on the myoelectric control signals. The system further includes a volitional impedance module for generating a torque control signal for actuating the powered joint based at least on the velocity reference.

Systems and methods for controlling a weight bearing member having at least one powered joint are provided. A system includes a velocity reference module for receiving myoelectric control signals from a user during a non-weight bearing mode for the powered joint and generating a velocity reference for the powered joint based on the myoelectric control signals. The system further includes a volitional impedance module for generating a torque control signal for actuating the powered joint based at least on the velocity reference.

A limb prosthesis includes a liner, a shell, and at least one sealing member. The at least one sealing member is secured to and circumferentially surrounds the liner. The at least one sealing member is disposed between the liner and the shell and enhances security of the attachment of the shell to the liner.

Valve for a prosthesis socket, the socket delineating an open cavity to receive a stump of an amputated limb and delineating a pass-through hole opening into the cavity and designed to receive the valve, the valve including a support in which a pass-through channel is formed and an element movable between an outlet position in which the element allow an air flow out of the channel in an outlet direction and a sealing position in which the element prevent any air flow inside the channel in an opposite direction to the outlet direction, the support including a thread configured to mount the support in removable manner inside the pass-through hole, and to enable disassembly of the support in an opposite direction to the outlet direction.

The present disclosure relates, according to some embodiments, to a device and/or system (e.g., redistributing weight away from a subject's foot), which may comprise (a) a platform, (b) at least one vertical support fixed to the platform and extending upwardly from the platform, and (c) at least one cuff (i) configured to surround and releasably grip at least a portion of a subject's leg other than the foot and (ii) mounted (e.g., adjustably) to the at least one vertical support at a vertical position along the at least one vertical support sufficient to suspend a subject's foot in a non-weight-bearing position above the platform during ambulation, wherein the platform, the at least one vertical support, and the at least one cuff together are configured to bear at least the subject's full weight.

Various examples are provided for modular prosthetic devices and their use. In one example, a device includes a chassis assembly including a joint portion; and an interchangeable module that can be removably attached to the chassis assembly. The interchangeable modules can be configured for use in a wide variety of applications. The interchangeable modules can be quickly exchanged for different activities.

Various examples are provided for modular prosthetic devices and their use. In one example, a device includes a chassis assembly including a joint portion; and an interchangeable module that can be removably attached to the chassis assembly. The interchangeable modules can be configured for use in a wide variety of applications. The interchangeable modules can be quickly exchanged for different activities.

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.