In one exemplary embodiment of the present invention, a gearbox assembly for a medical assist device having a motor assembly and a leg support is provided. The gearbox assembly includes a worm configured to be operably coupled to the motor assembly, and a worm gear meshingly engaged with the worm. The worm gear is configured to be operably coupled to the leg support, and the worm and the worm gear are configured to transfer rotary motion from the motor assembly to the leg support upon initiation of a force applied to the leg support.

A finger actuator, includes a plurality of fluidically interconnected inflatable chambers, wherein each chamber comprises outer walls having an embedded extensible layer selected to constrain radial expansion and freestanding inner walls; and an inextensible layer connected to the chambers at a base of the chambers, the inextensible layer comprising a flexible polymer and having an embedded inextensible layer that extends along the length of the finger actuator.

The present invention is an articulated orthopaedic foot (100) with shock absorption, which prevents the impact produced in each foot-loading cycle when walking or running, providing natural movement and stability for the user, the foot being adaptable to irregular surfaces and comprising: a central pin (1) pivotably joined to a pair of metatarsal plates (2); an instep subsystem (101) solidly joined to the pair of metatarsal plates (2) by securing means; an ankle subsystem (102) pivotably joined to the central pin (1), metatarsal shock-absorbing means (40) being positioned between the ankle subsystem (102) and the instep subsystem (101); a calcaneus support (13) pivotably joined to the central pin (1), calcaneus shock-absorbing means (41) being positioned between the calcaneus support (13) and the ankle subsystem (102), to absorb impact when the user uses the articulated orthopaedic foot (100); and coupling means (20) positioned in the upper part of the ankle subsystem (102), for joining a tibia prosthesis to the articulated orthopaedic foot (100).

An adjustable socket system includes a socket frame having a proximal area, a distal area opposite the proximal area, a first component arranged along a first side of the socket system, and a second component arranged along a second side of the socket system. The first component is connected to the second component. A tubular insert is arranged on an interior of at least the proximal area of the socket frame. The tubular insert forms an interior surface of the socket system. At least one tensioning element operatively connects the tubular insert to the first and/or second components. At least one tensioner is attached to the at least one tensioning element that selectively tensions the tensioning element to adjust a circumference of at least one area of the socket system.

An adjustable socket system includes a socket frame having a proximal area, a distal area opposite the proximal area, a first component arranged along a first side of the socket system, and a second component arranged along a second side of the socket system. The first component is connected to the second component. A tubular insert is arranged on an interior of at least the proximal area of the socket frame. The tubular insert forms an interior surface of the socket system. At least one tensioning element operatively connects the tubular insert to the first and/or second components. At least one tensioner is attached to the at least one tensioning element that selectively tensions the tensioning element to adjust a circumference of at least one area of the socket system.

The present invention provides a prosthetic socket (10) having a longitudinal axis X for attachment to a limb of a patient having first and second sides (A, B) which comprises a first portion (20) having a first edge (22), a second edge (24) a first end (26) and a second end (28) and second portion (30) having a first edge (32) a second edge (34) a first end (36) and a second edge (38). A hinge (40) is connecting the first edge (22) of the first portion (20) to the first edge (32) of the second portion (30) and a clasp (50) is provided between the second edge (24) of the first portion (20) and the second edge (34) of the second portion (30). Such an arrangement allows for a prosthetic socket (10) to be more easily attached and removed to a patients limb.

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 enclosed in a waterproof compartment. An outer cover can be configured to fit around the waterproof cover of the prosthetic knee.

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 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 osseointegrated abutment support socket for a residual limb in which an osseointegrated abutment has been implanted is described. The osseointegrated abutment support socket may include a distal socket base assembly, multiple longitudinal struts and a percutaneous site protector. The distal socket base assembly may include a base plate, a collar extending proximally from the base plate and forming a receptacle for receiving a distal end of the osseointegrated abutment, and a strut support ring disposed around the collar. The struts are connected at their distal ends to the strut support ring and extend proximally upward. The percutaneous site protector contacts a distal surface of the residual limb near a percutaneous site where the distal end of the osseointegrated abutment exits the residual limb.

The current document is directed to a two-way, by-passable, overrunning clutch incorporated within a mechanical prosthetic knee that provides functionality similar to a biological knee or incorporated in another articulated device, such as a robotic or orthotic articulated device or member. The currently disclosed two-way, by-passable, overrunning clutch allows for two-way free rotation when disabled, but, when enabled, prevents rotation in one direction while allowing free rotation in the other direction. In the mechanical prosthetic knee, the two-way, by-passable, overrunning clutch is enabled by application of a mechanical force and disabled by removal of the mechanical force.