An apparatus that allows a glove wearer or the wearer of a prosthetic limb to operate a device having a capacitive touchscreen is disclosed. There are three solutions provided in the disclosed invention. The first embodiment of the disclosed invention is directed to a conductive finger sock that can be applied to a digit of a non-conductive artificial limb. The finger sock may cover the whole digit of the artificial limb or may cover only the tip. The second embodiment is an adhesive element having a conductive material such as a conductive thread or a conductive sponge material. The adhesive element can be attached to a glove or to a prosthetic limb or may be used as an actual bandage. The third embodiment of the disclosed invention is directed to a factory integrated conductive tip that is part of a digit of a non-conductive artificial limb. Regardless of the embodiment, the conductive element may be attached to the wearer's skin by a conductive line or may be used without the conductive line and thus may function in isolation.

An outer frame for a prosthetic limb is provided. The outer frame is formed from one or more parts and has a plurality of air flow openings.

An inner liner for a prosthetic limb is provided. The liner comprises a plurality of airflow openings.

A securing arrangement of a prosthetic hand on a forearm socket with a receiving frame that can be fixed to the forearm socket, the prosthetic hand being fixed to said receiving frame, wherein the receiving frame is designed to feature radially-directed openings, through which the securing elements protrude. The securing elements positively engage with a proximal connection section of the prosthetic hand.

A grasp control system assists an operator with a grasping movement task. A movement intention signal is monitored for a grasping movement muscle of the operator. A volitional operator input for the grasping movement task is identified from the movement intention signal. One or more movement motors are operated based on the volitional operator input to perform the grasping movement task as a chain of motion primitives, wherein each motion primitive is a fundamental unit of grasping motion defined along a movement path with a single degree of freedom.

Generator systems and methods are provided for generating a neuromuscular-to-motion decoder from a healthy limb. The generator system is configured to receive neuromuscular signals from neuromuscular sensors associated to predefined muscle/nerve locations of at least one pair of agonist and antagonist muscles/nerves of the healthy limb, obtained during performance by the person of a predefined exercise (defined by predefined exercise data) with the healthy limb; to receive motion signals from motion sensors associated to predefined positions of the healthy limb, during performance by the person of the predefined exercise with the healthy limb; and to generate the neuromuscular-to-motion decoder by mapping the neuromuscular signals to the motion signals over time using a mapping method. Rehabilitation systems are also provided for rehabilitating a paretic limb by using a neuromuscular-to-motion decoder produced by a generator system.

A neurostimulator incorporating a novel chip design that uses the principle of redundant signal crossfiring to overcome electronic component mismatch error in general and transistor mismatch error in particular, to yield superior quality neurostimulation signal generation, useful in enhancing the bidirectional human-machine interface in prosthesis operation for the restoration of somatosensation for an amputee; and an improvement thereof additionally comprising a digital-to-analog converter device, that includes a number of unit cells, each unit cell being associated with a unit cell size indicating manufacturing specifications of the unit cell, and that further includes a plurality of switches, each being coupled to a component, and an output electrode coupled to the plurality of switches, and wherein the digital-to-analog converter device is configured to output an output signal at the output electrode.

A biometric sensor array system may include a skin contact layer, a flexible printed circuit board (PCB), and a plurality of force sensing resistors (FSRs). The flexible PCB may be positioned adjacent the skin contact layer and may have a connector tail. Each FSR may be positioned on the flexible PCB. The connector tail may be adapted to electrically connect the plurality of FSRs to a signal receiving component. The flexible PCB may be configured so that one or more of the plurality of FSRs may be trimmed away from the flexible PCB so that the connector tail is still adapted to electrically connect a remaining one or more of the plurality of FSRs to the signal receiving component.

Prosthetic devices and, more particularly, modular myoelectric prosthesis components and related methods, are described. In one embodiment, a hand for a prosthetic limb may comprise a rotor-motor; a transmission, comprising a differential roller screw; a linkage coupled to the transmission; and at least one finger coupled to the linkage. In one embodiment, a component part of a wrist of a prosthetic limb may comprise an exterior-rotor motor, a planetary gear transmission, a clutch, and a cycloid transmission. In one embodiment, an elbow for a prosthetic limb may comprise an exterior-rotor motor, and a transmission comprising a planetary gear transmission, a non-backdrivable clutch, and a screw.

A control system for control of a prosthetic device having a plurality of actuators receives an orientation signal indicative of a desired movement. The control system evaluates whether the prosthetic device may move as desired with a current angle of rotation and commands at least one actuator to move the prosthetic device as desired by maintaining the current angle of rotation or by adjusting the angle of rotation if the prosthetic device cannot move as desired with the current angle. The control system may alternate between commanding a first subset of actuators and a second subset of actuators each time the orientation signal is indicative of a neutral position. The control system may include a position sensor and a compliance sensor and may command at least one actuator based on a combination of positional control using the position sensor and force control using the compliance sensor.