Abstract: An artificial hip joint assembly including a ball mounted atop a supporting stem, the stem adapted to being mounted to a reconditioned end of a femur bone, with the ball adapted to seat within an acetabulum socket of a pelvic bone. An intermediate component is mounted between the ball and stem, the intermediate component incorporating force absorbing and redirecting properties at an engagement interface between the ball and stem in response to impact forces generated upon the ball by the pelvic bone. The intermediate component can be constructed of a softer material than either the ball or stem, the intermediate component can further include a sleeve exhibiting a plurality of interior threads and facilitating mounting of an exteriorly threaded end location of the stem.

Abstract: A tibial prosthesis has a bearing component configured for an anterior-medial insertion, which advantageously avoids the extensor mechanism of the knee. A tibial tray may include a banana-shaped boss that corresponds to a notch formed in the bearing component. After the bearing component is inserted along the anterior-medial path, the boss is received within the notch by rotating the bearing component with respect to the tibial tray. This rotation seats the bearing component upon the tibial tray in the manner of a fixed-bearing prosthesis. Alternatively, the boss and notch may define angled central axes which allow straight anterior-medial insertion of the bearing component and locking engagement to the tibial tray.

Abstract: A prosthetic foot includes a heel member having a heel member shaft extending upwardly from a heel end thereof and a forefoot member having a forefoot member shaft extending upwardly from a toe end thereof. An ankle member receives the heel member shaft and forefoot member shaft so as to allow the heel member shaft and forefoot member shaft to translate in a direction of a wearer's leg in response to an upward force thereon. At least one compressible member is coupled to the ankle member and is in compressible contact with the heel member shaft and/or forefoot member shaft so as to compress in response to the translation thereof.

Abstract: A prosthetic device and a method for making the same includes a mounting plate assembly. The mounting plate assembly includes an inner housing having a first center channel defined along a central axis, an outer housing having a second center channel defined along the central axis, and a fluid regulator arranged between the inner and outer housings, and defined along the central axis. The prosthetic device includes a socket having a cavity and a distal portion whereat the mounting plate assembly is located.

Abstract: An improved prosthetic device with a vacuum system for maintaining a negative pressure seal between the socket and the residual limb. The vacuum system includes a vacuum surge chamber which maintains seal vacuum and increases battery life. The system is small, lightweight, and concealable within the prosthetic device so that it neither impedes use of the device nor detracts from a cosmetically accurate limb.

Abstract: A system and method for joint arthroplasty may utilize one or more scaffolds to help support an arthroplasty prosthesis for the joint. A natural or prosthetic articulating surface may first be removed from one of the bones of the joint. This may expose a resection surface. A target portion of the resection surface may be identified based on, for example, fit and function testing of the joint with a trial arthroplasty prosthesis in place on the resection surface. One or more scaffolds may be placed on the target portion, and bone cement may be positioned adjacent to the scaffold(s) to define a raised surface that provides better fit and/or function than that which would be obtained with placement on the recessed surface. The arthroplasty prosthesis may be secured to the raised surface through the use of the bone cement.

Abstract: The invention relates to a connecting system for detachably connecting a prosthesis shaft to a liner that has been pulled over a residual limb, said system comprising a connecting pin and a receiving device with a receiving portion into which said connecting pin can be introduced, and being characterized in that the connecting pin comprises at least two rigid pin segments arranged one behind the other, in a longitudinal direction of said connecting pin, such that they can be displaced relative to one another.

Abstract: A cartilaginous tissue repair device with a biocompatible, bioresorbable three-dimensional silk or other fiber lay and a biocompatible, bioresorbable substantially porous silk-based or other hydrogel partially or substantially filling the interstices of the fiber lay; with or without an integral means of firmly anchoring the device to a patient's bone.

Abstract: A femoral head prosthesis (110) comprises an articulating surface (112) which is more than hemi-spherical; an internal recess (114) having a longitudinal axis defining a pole P of the articulating surface (112), the longitudinal axis passing through the center of curvature of the articulating surface (112); a first edge (116) which constitutes a posterior edge in use, and a second edge (118) which constitutes an anterior edge and/or an antero-inferior edge in use. The first edge (116) is further from the pole P than the second edge (118). Also provided is a femoral prosthesis comprising a femoral head, and a femoral implant comprising a femoral stem and a femoral head. The prostheses and implants of the invention find use in total hip replacements.

Abstract: An orthopaedic knee prosthesis includes a tibial bearing component with surface features which operate to protect adjacent soft tissues of the natural knee throughout a wide range of flexion. More particularly, the tibial bearing component provides an anterior relief space disposed between the dished lateral and medial articular compartments, in which the relief space is convex as viewed from a sagittal perspective across the medial/lateral extent of the relief space.

Abstract: A base component for a tibial implant has a lateral compartment and a medial compartment spaced from the lateral compartment defining an open central section therebetween. A connecting portion connects the medial and lateral compartments at an anterior end of the base component which anterior end is located adjacent the anterior tibia. The open central section of the base component intermediate the spaced medial and lateral compartments is open to a posterior end of the base component. The medial and lateral compartments have a bone contacting surface and a superiorly facing surface. The connecting portion has a curved anteriorly facing surface and has a first angled surface extending at an angle from adjacent the anterior end of the base component at a bone contacting surface of the connecting portion superiorly to a posterior end of the connecting portion. The first angled surface defining an anterior end of the open central section.

Abstract: The present invention is directed to a prosthetic adapter that allows for rotation of a prosthetic about central axis. In one embodiment, the invention is a prosthetic adapter comprising: a first component adapted to be coupled to a residual limb; a second component adapted to be coupled to a prosthesis; the first component or the second component comprising a collar forming a central cavity formed about a first central axis; the other one of the first component or the second component comprising a 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; wherein when the hub is positioned within the central cavity of the collar, the hub has only two degrees of freedom, rotation about the first central axis and translation along the first central axis.

Abstract: It concerns a prosthetic device for lower limb of a uses having a leg component, a foot component having a foot shell defining a first cavity within said foot shell and a coves component covering said leg component, said leg, foot and cover components being water compatible. The cover component is formed by an hollow flexible self-carrying sleeve defining a cavity within the sleeve around the leg component, the foot shell comprising a hole on its inner side, overlapping the sleeve on at least one centimeter and presenting an aperture below the sleeve to provide air communication between the cavity and the exterior. The cover component comprises in its upper part, a longitudinal slot, so that the water drains naturally from the first and second cavities.

Abstract: A ball and socket assembly including a ball component with a notch formed therein. The socket is a one-piece structure including an opening sized to receive the ball component.

Abstract: A ball and socket assembly including a ball component with a notch formed therein. The socket is a one-piece structure including an opening sized to receive the ball component. The ball is capable of being inserted into the socket when the notch, cavity or undercut is properly oriented relative to the opening of the one-piece socket.

Abstract: A prosthetic foot includes a foot member, a heel member operatively coupled to the foot member. At least one of the heel member and foot member define an arch portion that faces a support surface that the prosthetic foot contacts during use. An insole member contacts said arch portion, the insole member configured to facilitate a rollover of the prosthetic foot in at least one of a lateral-medial and a medial-lateral direction during ambulation.

Abstract: The application relates to an orthopedic device comprising a joint and to a method for controlling an orthopedic device, which has an upper part (1) and a lower part (2) supported pivotally thereon, wherein upper connecting means for fixation onto a limb are disposed on the upper part (1), and a locking device (3), which prevents a bending motion of the upper part (1) relative to the lower part (2), wherein the locking device (3) is configured such that it can be actively actuated by the user of the orthopedic device, wherein a control device (9) is associated with the locking device (3), the control device being attached to the device with at least one sensor (6, 7, 8) and automatically unlocking or locking the locking device (3) as a function of the sensor signal.

Abstract: A knee prosthesis comprises an agonist-antagonist arrangement of two series-elastic actuators in parallel, including a knee joint, flexion and extension actuators connected to the joint in parallel with a leg member, and a controller for independently energizing the actuators to control the movement of the knee joint and leg. The flexion actuator comprises the series combination of a flexion motor and a flexion elastic element and the extension actuator comprises the series combination of an extension motor and an extension elastic element. Sensors provide feedback to the controller. The flexion actuator and the extension actuator may be unidirectional, with the flexion and extension elastic elements being series springs. The extension actuator may alternatively be bidirectional, with the extension elastic element being a set of pre-compressed series springs. Alternatively, the flexion elastic element may be a non-linear softening spring and the extension elastic element may be a non-linear hardening spring.

Abstract: 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. The mechanism also provides for adjustment of a second piston element with respect to a shin component when a first valve is closed and a locking valve is open to adjust a reference angular position independently of the damping function that occurs during walking.

Abstract: The present disclosure provides knee prostheses that replicate at least a portion of the function of an individual patient's anterior cruciate ligament (ACL). An exemplary knee prosthesis includes a femoral component configured to be implanted on the distal end of the patient's femur and a tibial component configured to be implanted on the proximal end of the patient's tibia. In extension, the femoral component and the tibial component may cooperate to limit anterior movement of the tibial component relative to the femoral component. In flexion, the femoral component may be free to rotate relative to the tibial component.