A prosthetic appendage for attachment to an outer extremity of an amputated limb that is composed of modular elements fabricated by three-dimensional printing. In one embodiment the prosthetic appendage is a leg. The prosthetic leg includes a foot portion and a plurality of modular and three-dimensionally printed limb elements. One of the plurality of limb elements is pivotally coupled to the foot portion and another of the limb elements is configured at one end to receive the outer extremity of the amputated leg. In another embodiment of the present invention the prosthetic appendage is a hand. The prosthetic hand includes a wrist element with one end configured to receive the outer extremity of an amputated hand, a base portion attached to the wrist element and a plurality of modular and three-dimensionally printed finger elements selectively coupled to adjacent finger elements or the base to form prosthetic fingers.

Systems and methods for creating custom-fit prosthetic devices, orthotic devices, and related medical devices via three-dimensional printing (3D printing) or additive manufacturing techniques are described. Through the described systems and methods, a residual limb or other body part of a patient is scanned and analyzed to determine measurements and characteristics of the residual limb. The measurements and characteristics of the residual limb are used to design a customized device for the residual limb. The customized device uses multiple different materials. For example, the customized device may use a first material for a frame and a second material for a liner, wherein the first material is more rigid than the second material. The customized device is fabricated using a three-dimensional printer that is capable of printing and bonding multiple different materials at the same time.

A hydraulic pump assembly (72) comprises: a low-pressure hydraulic pump (74), a high-pressure hydraulic pump (76), and a drive shaft assembly (78) that passes along an axis of the pump assembly (72); wherein both hydraulic pumps (74, 76) are arranged to be rotated simultaneously by the drive shaft assembly (78); and wherein the pump assembly (72) is formed a single unit arranged to fit into a pump chamber (80).

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.

The present invention relates to an electronic artificial hand including a power section, a tendon section, and a restoring line section for joint movement of a finger group which is capable of preventing unnecessary driving of the power section using tension of the tendon section caused by the joint movement of the finger group and implementing a gripping force similar to a gripping force of a person through a physical configuration using the tension of a spring section and the tendon section and which is easily implemented due to a simplified configuration and has low manufacturing costs.

This system for identifying information represented by biological signals is configured so as to detect biological signals (S501), analyze the detected biological signals and then output feature data (S502), determine the respective similarities between the feature data and a plurality of teaching data (S503), store the similarities per time in a time series (S504), and determine information represented by the biological signals on the basis of the plurality of similarities within a prescribed period among the stored similarities in the time series (S505).

Systems and methods for manual gesture recognition to control prosthetic devices. Low encumbrance systems utilizing glove-based recognition to control prosthetic devices. Prosthetic control systems and methods are also provided utilizing elements for application on the user's fingernails.

In one embodiment, an orthotic gripper includes a flex sensor configured to detect flexion and extension of a wrist of a user of the gripper, and a gripping mechanism comprising a thumb link configured to attach to a thumb of the user and a finger link pivotally connected to the thumb link and configured to attach to one or more fingers of the user, the gripping mechanism being configured to move the finger link toward the thumb link when the flex sensor detects flexion of the wrist and to move the finger link away from the thumb link when the flex sensor detects extension of the wrist.

A jointed mechanical device is provided. The device includes at least one element having a fixed end and a deflectable end. The device also includes at least one actuating structure having a first end coupled to at least the deflectable end of the element, where the actuating structure includes at least one elastic element in series with at least one non-elastic element. The device further includes at least one force actuator configured to apply an actuator force to a second end of the actuating structure. Additionally, the device includes a control system for adjusting an operation of the force actuator based at least one actuation input, an amount of the actuator force, and an amount of displacement generated by the force actuator.

Energy supply system 3 for a prostheses 1, comprising at least a first 12 and a second 16 energy storage means, wherein in a charging mode for charging at least the first energy storage means 12, the first energy storage means 12 is electrically connected to the second energy storage means 16 in a first manner and in a working mode for delivering electrical energy to a consumer the first energy storage means 12 is electrically connected to the second energy storage means 16 in a second manner, such that the first connecting manner is different from the second connecting manner.