A minimally invasive intervertebral implant includes a circuitous body defining a luminal axis extending longitudinally therethrough. The circuitous body includes proximal and distal ends oppositely disposed along a lateral axis of the circuitous body. Each of the proximal and distal ends includes an aperture disposed therethrough such that the circuitous body includes a first configuration wherein the proximal and distal ends are at a maximum separation and a second configuration wherein the proximal and distal ends are closer together than in the first configuration.

A minimally invasive intervertebral implant includes a circuitous body defining a luminal axis extending longitudinally therethrough. The circuitous body includes proximal and distal ends oppositely disposed along a lateral axis of the circuitous body. Each of the proximal and distal ends includes an aperture disposed therethrough such that the circuitous body includes a first configuration wherein the proximal and distal ends are at a maximum separation and a second configuration wherein the proximal and distal ends are closer together than in the first configuration.

An intervertebral cage and intervertebral cage apparatus and a method for using the intervertebral cage and/or the intervertebral cage apparatus. The intervertebral cage can be any desired material including a memory material. The intervertebral cage apparatus can include the intervertebral cage and one or both of a variable volume pouch and a deployment cable. The variable volume pouch can be inserted into an internal volume of the intervertebral cage and affixed to the intervertebral cage. The variable volume pouch can be filled with material to achieve an expanded state. The variable volume pouch can assist in the deployment of the intervertebral cage. The deployment cable can be attached to the intervertebral cage and can include features to facilitate that attachment. The deployment cable can apply a force to the intervertebral cage to deploy the intervertebral cage, and can include features to lock the intervertebral cage in the deployed configuration. An implantation tool can be used to apply force to the intervertebral cage to deploy the intervertebral cage.

A powered leg prosthesis including a powered knee joint with a knee joint and a knee motor unit for delivering power to the knee joint, a powered ankle joint coupled to the knee joint including an ankle joint and an ankle motor unit to deliver power to the ankle joint, a prosthetic foot coupled to the ankle joint, a plurality of sensors for measuring a real-time input, and controller for controlling movement of the prosthesis based on the real-time input. In the powered leg prosthesis, at least one of the knee motor unit or the ankle motor unit includes at least one drive stage, where the drive stage includes a rotary element for generating torque and at least one looped element affixed around the rotary element and configured for transmitting the torque to another rotary element coupled to a joint to be actuated.

An intervertebral cage and intervertebral cage apparatus and a method for using the intervertebral cage and/or the intervertebral cage apparatus. The intervertebral cage can be any desired material including a memory material. The intervertebral cage apparatus can include the intervertebral cage and one or both of a variable volume pouch and a deployment cable. The variable volume pouch can be inserted into an internal volume of the intervertebral cage and affixed to the intervertebral cage. The variable volume pouch can be filled with material to achieve an expanded state. The variable volume pouch can assist in the deployment of the intervertebral cage. The deployment cable can be attached to the intervertebral cage and can include features to facilitate that attachment. The deployment cable can apply a force to the intervertebral cage to deploy the intervertebral cage, and can include features to lock the intervertebral cage in the deployed configuration. An implantation tool can be used to apply force to the intervertebral cage to deploy the intervertebral cage.

An intervertebral cage and intervertebral cage apparatus and a method for using the intervertebral cage and/or the intervertebral cage apparatus. The intervertebral cage can be any desired material including a memory material. The intervertebral cage apparatus can include the intervertebral cage and a deployment system having one or both of a variable volume pouch and a deployment cable. The variable volume pouch can be inserted into an internal volume of the intervertebral cage and affixed to the intervertebral cage. The variable volume pouch can be filed with material to achieve an expanded state. The variable volume pouch can assist in the deployment of the intervertebral cage. The deployment cable can be attached to the intervertebral cage and can include features to facilitate that attachment. The deployment cable can apply a force to the intervertebral cage to deploy the intervertebral cage, and can include features to lock the intervertebral cage in the deployed configuration. An implantation tool can be used to apply force to the intervertebral cage to deploy the intervertebral cage.

Intervertebral implants for implanting into an intervertebral space are provided. The implants can comprise one or more layers that are operably attached to one another. An implant can comprise a first layer having a first mating surface that mates with a second mating surface of a second layer. The first mating surface and the second mating surface can have features that allow them to complement each other. The implants can include one or more bore holes for receiving a fixation member. The bore holes can be horizontal, vertical or diagonal. In some cases, the bore holes will be blind bore holes.

Provided is a structurally stable interbody cage. An interbody cage 1 includes a main body 2 distally including two branches 20,21 that are spaced apart from each other upward and downward, a rod 3 provided in the main body 2 so as to extend between the two branches 20,21, and a slider 4 configured to separate the two branches 20,21 upward and downward, the slider 4 being supported by the rod 3 so as to be movable in an axis direction of the rod, wherein the two branches 20,21 each distally have an inclined surface 26A, the inclined surfaces 26A facing each other, the distance between the inclined surfaces 26A gradually increasing toward distal ends thereof; the slider 4 slides on the inclined surfaces 26A of the two branches 20,21 when the slider 4 moves in the axis direction of the rod 3, and the two branches 20,21 each proximally have a constricted part 27 with a narrow thickness and an opening 5 is present between the upper constricted part 27 and the lower constricted part 27, the opening 5 being formed by a plurality of holes 50 to 52 continuous in the axis direction of the rod 3 and having an upper edge and lower edge that form protruding curves in a lateral view.

A prosthetic ankle and foot combination has an ankle joint mechanism constructed to allow damped rotational movement of a foot component relative to a shin component. The mechanism provides a continuous hydraulically damped range of ankle motion during walking with dynamically variable damping resistances, and with independent variation of damping resistances in the plantar-flexion and dorsi-flexion directions. An electronic control system coupled to the ankle joint mechanism includes at least one sensor for generating signals indicative of a kinetic or kinematic parameter of locomotion, the mechanism and the control system being arranged such that the damping resistances effective over the range of motion of the ankle are adapted automatically in response to such signals. Single and dual piston hydraulic damping arrangements are disclosed, including arrangements allowing independent heel-height adjustment.

Prosthesis for a shoulder joint including a humeral component equipped with a stem, a head component and connection or articulation means of the humeral component with the head component, wherein the prosthesis according to the invention can be used both as a conventional prosthesis and as a reverse-type prosthesis.