Abstract: An ankle implant for use in ankle arthroplasty in total ankle replacement is provided. The implant includes an upper prosthesis anchored to the tibia and a lower prosthesis anchored to the talus. The lower prosthesis is operable associated with the upper prosthesis. The implant also includes a stem which is rigidly removably connected to the second member. The stem includes a portion for attachment to the calcaneous. The stem is be adapted to be in a first position in the calcaneous when the stem is in a first relative position with respect to the lower prosthesis, and to provide for a second position in the calcaneous when the stem is in a second relative position with respect to the lower prosthesis.

Abstract: A line of joint implant systems includes an implant including a cup to be affixed in one of the elements of the considered joint, defining a smooth inner cavity of substantially hemispherical shape. The implant also includes an insert, mobile within the inner cavity of the fixation cup and having its smooth outer surface intended to cooperate by ball-and-socket joint with the inner cavity, and defining in turn a smooth inner cavity of substantially hemispherical shape. The implant further includes a head or ball, solid with a second element of the joint, of spherical shape, intended to be received in the inner cavity of the mobile insert and to form a second ball-and-socket joint. The ratio of the inner diameter of the inner cavity of the fixation cup to the inner diameter of the inner cavity of the mobile insert is constant, whatever the diameter of the selected ball.

Abstract: An orthopaedic prosthetic system includes a plate having one or more flanges and an acetabular shell component. Each flange includes a surface configured to engage a patient's bone. The plate also includes a central ring that engages a lip extending from an outer surface of the shell component. The ring may be mechanically attached to the lip using multiple fasteners. The system may include multiple plates each having a different configuration from other plates, and may also include multiple shell components each having a different configuration from other shell components. Methods for assembling and using the prosthetic system are also disclosed.

Abstract: The present invention provides an active substance application insert (10, 110) for an implant (30), in particular a joint implant. The active substance application insert has a main body (11), an active substance chamber (12) formed in the main body, an application side (13, 113) which forms a front face of the active substance chamber, wherein the application side has a plurality of application openings (14, 114), and a securing means (15) with which the main body can be detachably secured in the implant. In a state in which the main body is inserted into the implant, the application side faces outwards relative to the implant, such that the application openings connect the active substance chamber to the environment of the implant. Furthermore, within the scope of the present invention an implant (30) with a recess (31) for receiving an active substance application insert (10, 110) is provided.

Abstract: The invention relates to biomimetic, biodegradable composites including a magnesium (Mg) alloy mesh and a polymer/extracellular matrix (ECM). These hybrid composites, more particularly, are useful for the fabrication of medical implant devices, e.g., scaffolds, and are effective for bone regeneration. The fabrication process includes creating the Mg alloy mesh, and concurrently electrospinning the polymer and electrospraying the ECM onto the mesh.

Abstract: A prosthetic system includes a prosthetic knee having a controller and a hydraulic unit pivotally connected to the controller. The hydraulic includes a reserve hydraulic cylinder, a brake hydraulic cylinder, and a hydraulic cylinder having a lower hydraulic compartment. A flow system fluidly connects the hydraulic cylinder, the reserve hydraulic cylinder, and the brake cylinder. The flow system has first and second flow paths in communication with the lower hydraulic compartment and the reserve hydraulic cylinder. The first flow path is in communication with lower hydraulic compartment and the reserve hydraulic cylinder via the brake cylinder. The second flow path bypasses the brake hydraulic cylinder.

Abstract: In one aspect, an orthopaedic prosthetic component is provided. The prosthetic component comprises a base, a porous three-dimensional structure and at least one surface feature extending past a surface boundary of the porous three-dimensional structure to engage a patient's bone.

Abstract: Systems and methods for tracking unintentional high amplitude muscle movements of a user and stabilizing a handheld tool are described. The method may include detecting motion of a housing of the handheld tool when manipulated by a user while the user is performing a task with a user-assistive device attached to an attachment arm of the handheld tool, and storing the detected motion in a memory of the handheld tool as motion data. Furthermore, the method may include controlling a first motion generating mechanism and a second motion generating mechanism by generating a first motion signal and a second motion signal that respectively drive the first motion generating mechanism in a first degree of freedom and the second motion generating mechanism in a second degree of freedom to stabilize motion of the user-assistive device attached to the attachment arm of the handheld tool.

Abstract: An acetabular spacer device, of a type that is temporary and disposable, adapted to be implanted in use in a bone cavity placed at a joint of the human body, such as a hip or shoulder joint, has a cup-like shape, substantially hemispherical, and includes a first convex surface, adapted to be positioned at the bone cavity, a second concave surface, which defines a cavity, further includes at least one pharmaceutical or medical substance, such as at least one antibiotic, adapted to treat during use an ongoing infection in the bone cavity.

Abstract: A medical product for use during the treatment of a bone defect, having a plurality of individual elements that are connected to one another such that individual elements adjacent to one another engage in one another/are chained to one another. The individual elements of the chain net are subdivided into main elements and connection elements that are designed differently from the main elements. The main elements and the connection elements form, when chained to one another, a grid structure that is flat in the x-y plane.

Abstract: Devices, method to produce devices and methods to perform bone augmentation using a bag having two membranes on one side and one membrane on the other side which is preferably perforated. The bag can be filled with bone augmenting material. The bag can be used in the jaws while placing the side with the one membrane towards the jaw bone and the side with the two membranes towards the gingiva.

Abstract: A prosthetic socket for a prosthetic limb is provided. The prosthetic socket comprises a socket body and a first and second structural members. The socket body comprises a distal end and a top edge opposite the distal end. The distal end comprises a prosthetic component attachment mechanism. The top edge comprises a medial fin, a lateral fin, a posterior edge and an anterior edge. The first and second structural members each include a first straight portion, a second straight portion, and a first arch portion. The first structural member is disposed on a medial exterior surface of the socket body and the second structural member is disposed on an lateral exterior surface of the socket body.

Abstract: A trial template for visualizing the placement of a bone screw includes a bone facing side, a visualization side opposite the bone facing side, a trial periphery defining an outer perimeter of the trial, and first and second support members positioned within the trial periphery and each having a length extending in a direction transverse to an axis that extends through the bone facing and visualization sides The first and second support members define a viewing window therebetween that extends through the second component from the visualization side to the bone facing side. The trial template also includes a visualization member extending between the first and second support members and across the viewing window. The visualization member includes a position within the second component periphery that corresponds with a desired bone screw location in a bone.

Abstract: Provided herein are biomimetic osteochondral implants that are generally useful for the at least partial resurfacing of damaged cartilage within a joint. The implants are constructed to have a modular, layered structure in which the physical properties (e.g., stiffness and lubricity) or dimensions of each layer can be adjusted (e.g., by using the appropriate material and controlling the thickness thereof) based on the anatomy to be replaced. For example, the material and or thicknesses of the layers can be selected to approximate the physical properties and/or dimensions of cartilage (and, optionally, chondral and subchondral bone). Also provided herein are methods of treatment involving the use of said biomimetic osteochondral implants to repair an osteochondral defect in a joint.

Abstract: In one embodiment of the disclosure, a prosthetic bone implant includes a prosthesis and a tissue attachment structure connected to the prosthesis. The tissue attachment structure includes a connective structure connected to the prosthesis and an interface structure connected to the connective structure. The interface structure is configured for attachment of tissue thereto. When the interface structure is subject to tension, the connective structure changes in shape.

Abstract: A time-dependent decay behavior is incorporated into one or more joint actuator control parameters during operation of a lower-extremity, prosthetic, orthotic or exoskeleton device. These parameters may include joint equilibrium, joint impedance (e.g., stiffness, damping) and/or joint torque components (e.g., gain, exponent). The decay behavior may be exponential, linear, piecewise, or may conform to any other suitable function. Embodiments presented herein are used in a control system that emulates biological muscle-tendon reflex response providing for Reflex Parameter Modulation a natural walking experience. Further, joint impedance may depend on an angular rate of the joint. Such a relationship between angular rate and joint impedance may assist a wearer in carrying out certain activities, such as standing up and ascending a ladder.

Abstract: Devices, systems and methods for fixating soft tissue to bone. In one embodiment, a repair device system for fixating soft tissue to bone includes a carrier member, multiple anchors, and a bone anchor. The carrier member includes multiple pad portions and a bone coupling portion. Each of the pad portions are aligned with an adjacent pad portion. The pad portions are configured to be positioned over a side of the soft tissue and the bone coupling portion is coupled to the multiple pad portions. Each anchor is sized and configured to extend through the at least one opening defined in one of the multiple pad portions and through the soft tissue. The bone anchor is configured to be coupled to the bone coupling portion and configured to be secured to the bone.

Abstract: The present invention discloses a metal-ceramic composite joint prosthesis and applications and a manufacturing method thereof. The joint prosthesis comprises a metal body and a ceramic body, wherein the metal body is integrally formed and comprises a porous structure layer, a boundary layer and a root-like layer, the boundary layer is located between the porous structure layer and the root-like layer, the root-like layer comprises a plurality of root-like filament clusters connected to the boundary layer but not in contact with one another, each root-like filament cluster comprises a main root perpendicularly connected to the boundary layer and a plurality of fibrous roots connected to the lateral side of the main root, the fibrous roots extend obliquely towards the side away from the boundary layer, and the ceramic body covers the root-like filament clusters and is formed on the boundary layer.

Abstract: An implant for repairing an articular cartilage defect site including an implant fixation portion with an upper segment and at least one bone interfacing segment and a top articulating portion with an articulating surface and an engagement surface. The upper segment includes a supporting plate with a first locking mechanism segment. The engagement surface includes a second locking mechanism segment. The first locking mechanism segment with at least two channels is structured to couple to the second locking mechanism segment with at least two protrusions. The at least one bone interfacing segment structured for insertion into the articular cartilage defect site. An implant including an implant fixation portion, a top articulating portion, and a locking mechanism with a first locking segment coupled to the upper segment and a second locking segment coupled to the at least one engagement surface and structured to couple to the first locking segment.

Abstract: A scaffold comprised of a plurality of PLLA layers, which may include stem cells, for regenerating bone or tissue. The PLLA layers are separated by a plurality of hydrogel layers. The PLLA layers comprise a nanofiber mesh having a piezoelectric constant to apply an electrical charge to the bone or tissue upon application of ultrasound energy.