Features for a prosthetic wrist and associated methods are described. The wrist couples with a prosthetic socket and a prosthetic hand. The wrist may rotate the hand. The wrist includes features to prevent or mitigate undesirable separation of the wrist from the socket. The wrist may have an expanding coupling, such as an expanding ring, to better secure the wrist with the socket. An actuator may cause the coupling to expand outward to prevent or mitigate undesirable separation of the wrist from the socket. Alternatively or in addition, the wrist may include torque control features to prevent undesirable or premature separation of the hand from the wrist, for example when using a quick wrist disconnect (QWD) apparatus. A torque control method may tailor or limit multiple torques to be applied by the wrist to the hand based on operational requirements and phases, such as anticipated torque loads and operational timing.

A prosthetic hand device mountable on a residual limb of an amputee is provided. The prosthetic hand device includes a myoelectric hand having five mechanical fingers actuatable to provide multiple degrees of freedom of movement, a control assembly including an ultrasound module as a human-machine interface, wherein the ultrasound module is configured to acquire ultrasound images of a region of the residual limb, a transfer learning model having a convolutional neural network architecture for obtaining extracted features from the ultrasound images, and an artificial intelligence model executed by one or more processors and configured to classify the extracted features from the ultrasound images for determining a volitional movement of the amputee in real-time. The volitional movement is transmitted to the myoelectric hand to dynamically and proportionally control the five mechanical fingers based on at least the volitional movement.

The present invention provides a prosthetic hand capable of multiple grasp types. The prosthetic finger units are underactuated both within and between the finger units using a differential mechanism arrangement. The locking movement of the prosthetic thumb unit is coupled to the differential mechanism. As the user repositions the prosthetic thumb unit, the differential mechanism is effected as to alter both the initial positions and force distribution of the prosthetic finger units. The present invention further provides an additive manufacturing molding method for making the same.

A prosthesis system can have an advantageous use over conventional prostheses in certain activities, including, but not limited to certain sports activities: The system includes, elastic member(s) that can store and release energy. The storing and releasing of energy in the elastic members happens during the movements made by the user and with the application of the user's own body weight while performing an activity. Implementations can also include a variety of routing configurations for the elastic member(s), as well as a variety of mounting points to integrate the elastic member(s) into the system, and/or a variety of adjustable anti-hyperextension members, and/or a variety of interchangeable shoes used for applicable activities.

A harness for an upper extremity below-elbow prosthesis. The harness includes a humeral cuff having medial and lateral pivot arms configured to removably attach to the socket of a below-elbow prosthesis. The humeral cuff enables a user to suspend the prosthesis without the need of a shoulder strap/harness or body harness. A cable system is affixed to the pivot arms and includes a wheel coupling the pivot arms to the control arm of a hook of the below-elbow prosthesis, thereby enabling users to operate the hook by simple flexion and extension of their arm.

Features for a prosthetic wrist and associated methods are described. The wrist couples with a prosthetic socket and a prosthetic hand. The wrist may rotate the hand. The wrist includes features to prevent or mitigate undesirable separation of the wrist from the socket. The wrist may have an expanding coupling, such as an expanding ring, to better secure the wrist with the socket. An actuator may cause the coupling to expand outward to prevent or mitigate undesirable separation of the wrist from the socket. Alternatively or in addition, the wrist may include torque control features to prevent undesirable or premature separation of the hand from the wrist, for example when using a quick wrist disconnect (QWD) apparatus. A torque control method may tailor or limit multiple torques to be applied by the wrist to the hand based on operational requirements and phases, such as anticipated torque loads and operational timing.

The present disclosure relates to an orthosis device for providing motor movement to a body part. The device comprises a plurality of sensors to sense a first set of motion signals, a control unit, at least one actuator, and a support structure. The support structure comprises a guide structure comprising a plurality of wires. The control unit generates a second set of motion signals and provides the same to the at least one actuator. The at least one actuator generates a force for movement of the plurality of wires of the guide structure of the support structure. The movement of the plurality of wires help in motor movement of the body part.

A prosthesis or orthosis has a first body and a second body rotatable relative to one another, a passive mechanical converting mechanism with a third body arranged movably with respect to the first body, and an elastic element arranged between the third and the second body. The mechanical converting mechanism is configured for converting an angular change between the first body and the second body into a change of load on the elastic element. There is further provided a ratio adapting device interacting with the converting mechanism and configured for modifying the conversion ratio by which the change of load on the elastic element is performed.

An orthopedic device for the orthotic or prosthetic provision of a patient. The orthopedic device includes a knee joint, which has a proximal upper part and a distal lower part arranged pivotably thereon, an ankle joint, a pivoted foot part which can be fastened distally to the ankle joint, and a shin part arranged between the ankle joint and the knee joint. The upper part of the knee joint or a thigh part fastened thereto that can be attached to the patient's body and is coupled with the foot part by means of a force transfer device, which causes a plantar flexion of the foot part when a knee is flexed.

A mechanical grasping device where each of the segments of the finger assemblies, are individually sizeable. This allows for both a proportionately scalable grasping device as well as individual customization of geometric configurations tailored to specific use patterns. The mechanical grasping device is crushable since it has flexible and pivotable connections between digits along its length and width. It has a hollow member construction that imparts a strong lightweight design. It is modular so individual parts can be replaced for quick repair. From an aesthetics point, it is visually pleasing and can be offered in different colors, and with custom digit sleeves for specific applications. Finger assemblies can be operated individually or in groups via pairs of cables which allow operation in either voluntary open or voluntary closed modes of control. The flexible construction allows gripping of irregularly shaped objects and deforms before failing giving indication of overload prior to failure.