A method of providing a modular prosthetic socket for a residual limb of a patient may involve receiving digital data defining a three-dimensional digital profile of the residual limb and selecting prosthetic socket components from component-specific inventories, based at least in part on the digital profile. The selected prosthetic socket components may include: multiple longitudinal struts; one or more proximal brim members for attachment to the longitudinal struts; and a distal socket base to which the longitudinal struts attach at or near their distal ends. The method may further involve providing the selected prosthetic components to an operator for assembling into the modular prosthetic socket. The prosthetic socket, when assembled, defines an internal space substantially complementary to the profile of the residual limb.

The present invention is directed to a prosthetic adapter that allows for rotation of a prosthetic about a central axis. In one embodiment, the invention is a prosthetic adapter comprising: a first component comprising: a first pyramid block receiver comprising a first pyramid block receiving cavity; a collar integrally formed as a single monolithic component with the first pyramid block receiver, the collar comprising an inner surface forming a central cavity formed about a first central axis; and a second component comprising: a second pyramid block receiver comprising a second pyramid block receiving cavity; and a hub integrally formed as a single monolithic component with the second pyramid block receiver, the hub extending along a second central axis, the hub positioned in the central cavity so that the first and second central axes are substantially coaxial.

A method of providing a modular prosthetic socket for a residual limb of a patient may involve receiving digital data defining a three-dimensional digital profile of the residual limb and selecting prosthetic socket components from component-specific inventories, based at least in part on the digital profile. The selected prosthetic socket components may include: multiple longitudinal struts; one or more proximal brim members for attachment to the longitudinal struts; and a distal socket base to which the longitudinal struts attach at or near their distal ends. The method may further involve providing the selected prosthetic components to an operator for assembling into the modular prosthetic socket. The prosthetic socket, when assembled, defines an internal space substantially complementary to the profile of the residual limb.

A method of engaging a limb with an interface using an external tool is described. The method includes the steps of: (i) removably attaching one or more actuators of the external tool to one or more paddles of the interface; (ii) operating the actuators to adjust a position of the paddles inward or outward relative to a longitudinal axis of the interface; and (iii) selecting a compression force for each of the paddles so as to compress target areas of soft tissue in the limb against skeletal structure to reduce motion of the skeletal structure towards an inner surface of the paddles.

A prosthetic knee can include a variable-torque magnetorheological (MR) actuator assembly or braking system, a frame and an electronics assembly or system that also serves as a mount for the knee actuator and facilitates in monitoring and controlling the operation of the knee actuator. The prosthetic knee system advantageously provides resistive forces to substantially simulate the position and motion of a natural knee joint during ambulation and/or other locomotory activities performed by the amputee. The prosthetic knee can be have a series of internal blades for providing resistive forces. A locking ratchet can be used to lock knee position. A dynamic seal with a protective shim can be disposed in the knee actuator. A coil with a non-circular cross-section can be used.

An improved structure of a connection and adjustment assembly of a support socket joint of a prosthesis includes a connector, in which a vertical through hole and a horizontal through hole are formed. A support socket is provided on the connector and receives therein an arrest axle extending through the vertical through hole. The horizontal through hole receives therein a shaft, which has an end having a toothed wheel engageable with the arrest axle and an opposite end to which a second one-way bearing, a sleeve, and a knob cap are mounted. The knob cap has an interior that is an elliptical configuration corresponding to and mating an outside elliptical configuration of the sleeve. Pressing a knob causes movement of the sleeve and thus components mounted to the shaft so as to have the toothed wheel disengage from the arrest axle, allowing the arrest axle to be withdrawn out.

The invention relates to a joint for an orthopedic device. The joint has a first joint part (38), a second joint part (34), which is pivotally arranged on the first joint part (38) about a pivot axis (36), and a hydraulic system witha first hydraulic chamber (8),a second hydraulic chamber (10), which is connected to the first hydraulic chamber (8) by means of at least one fluidic connection (12), andat least one valve (14), which is designed to open and close the fluidic connection (12) and which is arranged and designed such that hydraulic fluid flows from the first hydraulic chamber (8) into the second hydraulic chamber (10) or vice versa when the first joint part (38) is pivoted relative to the second joint part (34), wherein the hydraulic system has at least one volume (18), which has a first sub-volume and a second sub-volume, and at least one additional fluid line (16), which has a first sub-line (24) and a second sub-line (26). The first sub-volume is connected to the first hydraulic chamber (8) via the first sub-line (24), and the second sub-volume is connected to the second hydraulic chamber (10) via the second sub-line (26). The first sub-volume is separated from the second sub-volume by a movable separating device.

An adjustable prosthetic device and a fitting tool for positing the prosthetic device on a limb are described. The prosthetic device comprises two or more adjustable paddles that are movably coupled with an adapter via connectors. The connectors allow the paddles to be repositioned relative to a user's limb. The paddles are sized and dimensioned to capture lost motion between the limb and the prosthetic device through skeletal compression and tissue displacement. The fitting tool comprises two or more compression bars that removably couple with the two or more paddles of the prosthetic device. The fitting tool also comprises two or more linear actuators that control the positions of the compression bars and the paddles relative to the limb.

An improved structure of a connection and adjustment assembly of a support socket joint of a prosthesis includes a connector, in which a vertical through hole and a horizontal through hole are formed. A support socket is provided on the connector and receives therein an arrest axle extending through the vertical through hole. The horizontal through hole receives therein a shaft, which has an end having a toothed wheel engageable with the arrest axle and an opposite end to which a second one-way bearing, a sleeve, and a knob cap are mounted. The knob cap has an interior that is an elliptical configuration corresponding to and mating an outside elliptical configuration of the sleeve. Pressing a knob causes movement of the sleeve and thus components mounted to the shaft so as to have the toothed wheel disengage from the arrest axle, allowing the arrest axle to be withdrawn out.

An example system for tuning powered prosthesis impedance control parameters can include a powered prosthesis and intelligent tuner operably connected to the powered prosthesis. The powered prosthesis can include a joint, a motor that is mechanically coupled to the joint, a plurality of sensors configured to measure a plurality of gait parameters associated with a subject, and an impedance controller. The motor of the powered prosthesis can be configured to drive the joint, and the impedance controller of the powered prosthesis can be configured to output a control signal for adjusting a torque of the motor, where the torque is adjusted as a function of the measured gait parameters and a plurality of impedance control parameters. The intelligent tuner can be configured to adjust at least one of the impedance control parameters using a rule base.