A prosthetic device. The prosthetic device may include a flexure cut and/or a sensor to detect movement in accordance with a degree of movement. In an embodiment, the sensor may be disposed within the flexure cut. Other embodiments include at least one wire configured to connect a sensor located in a distal portion to a proximal portion, while annularly traversing a joint.

Devices and methods for obtaining external shapes and internal tissue geometries, as well as tissue behaviors, of a biological body segment are provided. A device for three-dimensional imaging of a biological body segment includes a structure configured to receive the biological body segment, the structure including a first array of imaging devices disposed about a perimeter of the device to capture side images of the biological body segment and a second array of imaging devices disposed at an end of the device to capture images of a distal portion of the biological body segment. The second array has a generally axial viewing angle relative to the perimeter. A controller is configured to generate a three-dimensional reconstruction of the biological body segment based on cross-correlation of captured images from the first and second arrays.

An actuator includes a plurality of power transmitters configured to transmit power sequentially, and an elastic element configured to connect a first power transmitter and a second power transmitter that are adjacent to each other and perform a coaxial rotation motion, among the plurality of power transmitters.

Described here are prosthetic systems, devices, and methods of use therefor. Generally, a prosthesis may be configured to set a resistance to rotation of a prosthetic joint based on a phase of gait. The prosthesis may include a first cylinder, a first piston slidable within the first cylinder, a fluid sump, and a fluid circuit. The fluid circuit may include a plurality of interconnected fluid channels having a unidirectional variable-resistance valve and a set of check valves that are configured to provide unidirectional flow through the valve during piston compression and extension.

A prosthetic foot has a frame, a forefoot keel, a heel keel, and an adjustable spring member. The frame couples to a prosthetic leg. The forefoot keel includes a first resilient substrate extending from the frame to the anterior end of the foot. The heel keel member includes a second resilient substrate extending from the frame to the posterior end. The first and second resilient substrates are load bearing substrates for a walking human. The adjustable spring member includes a third resilient substrate and a brake. The third resilient substrate has a first end directly or indirectly coupled to the brake, and a second end coupled to the forefoot keel proximate to the anterior end. The third resilient substrate extends through or around the first resilient member and the second resilient member. The brake provides resistance to the travel of the first end of the third resilient substrate in the superior direction.

An orthopedic technical device having a top part and a bottom part, which are connected to each other by at least one joint device so as to be pivotable about a joint axis, and at least one attachment device with which the orthopedic technical device can be fixed to a limb. The orthopedic technical device also has an actuator, which is fixed to attachment points on the top part and the bottom part and influences a pivoting of the top part relative to the bottom part, wherein the orientation of the bottom part can be adjusted relative to the limb which is fixable to the upper part.

An upper extremity prosthesis may include a prosthetic hand including a prosthetic thumb having a base and a tip, and a prosthetic index finger having a base and a tip. Actuators may be coupled to the upper extremity prosthesis. Prosthetic flexion tendons may have first ends operably coupled to the actuators and second ends coupled to the tips of the thumb and the index finger. Biasing systems may be operably coupled to the prosthetic thumb and the index finger. Upon actuation of the actuators in a first direction, the prosthetic flexion tendons cause the thumb and index finger to flex. Upon actuation of the linear actuators in a second direction opposite the first direction, the biasing systems cause the thumb and index finger to extend.

The invention provides for an improved disarticulated compression socket configured to secure a residual limb. The disarticulated compression socket may include a rigid socket frame, and preferably a 3-D printed socket having one or more surface channels that may secure a compression cord optionally positioned within a cord cylinder. Such compression cord may be responsive to a compression actuator and one or more disarticulated compression inserts such that activation of the compression actuator causes the retraction of the compression cord initiating the coordinated inward compression of each of said disarticulated compression inserts securing the residual limb within said socket frame.

Features for a powered prosthetic thumb are described. The thumb provides for rotation of a digit that mimics the natural movement possible with a sound thumb. The thumb may attach to a full or partial prosthetic hand or socket on a residual limb. The thumb may include an upper assembly, including a prosthetic thumb digit, rotatably attached to a mount about a pinch axis and a lateral axis. The digit may rotate about only the pinch axis, only the lateral axis, or both the pinch and lateral axes simultaneously. A first actuator may actuate to cause rotation of the digit about the pinch axis. A second actuator may actuate to cause rotation of the digit about the lateral axis. The first and second actuators may be actuated together at appropriate speeds to cause rotation about both the pinch and lateral axes simultaneously. A swaying chassis may be rotatably connected with the upper assembly and a lower assembly about various offset axes to provide for rotation about the lateral axis.

A testing apparatus is disclosed herein for testing properties of a prosthetic device. The testing apparatus may comprise a dual-drive pulsatile flow tester with the ability to determine coaptation of valve leaflets of a prosthetic device. The testing apparatus may be able to test prosthetic heart valves and reproduce physiological conditions of a prosthetic heart valve.