Described is an acetabular assembly comprising: an acetabular cup component (100) having an outer convex surface (104), an inner concave surface (106) defining a cup cavity, and a plurality of openings (116) that extend between the inner concave surface and the outer convex surface and that are configured to accommodate a fastener for attaching the acetabular cup component to an acetabulum of a patient; an insert bearing liner (200) defined by an inner concave surface (202) and an outer convex surface (206), and configured to be located at least partially within die cup cavity of the acetabular cup component; and a plurality of spacers (300) that are configured to be inserted into the plurality of openings in the acetabular cup component from the inner concave surface.

The present invention provides a method for stabilizing a fractured bone. The method includes positioning an elongate rod in the medullary canal of the fractured bone and forming a passageway through the cortex of the bone. The passageway extends from the exterior surface of the bone to the medullary canal of the bone. The method also includes creating a bonding region on the elongate rod. The bonding region generally aligned with the passageway of the cortex. Furthermore, the method includes positioning a fastener in the passageway of the cortex and on the bonding region of the elongate rod and thermally bonding the fastener to the bonding region of the elongate rod while the fastener is positioned in the passageway of the cortex.

The disclosure provides an articular fossa prosthesis and an articular prosthesis with the articular fossa prosthesis. An outer cup of the articular fossa prosthesis is disposed in a target skeleton, a lining is disposed in the outer cup, an articular head structure may be movably disposed in the lining, a first communicating passage communicated with an articular capsule is disposed on the outer cup, a second communicating passage communicated with the articular capsule is disposed on the lining, and the first communicating passage is communicated with the second communicating passage to guide a synovial fluid to a contact surface between the lining and the articular head structure.

An acetabular cage or device (100) is disclosed. In one embodiment, the acetabular cage includes a cup portion (110) configured for implantation in an acetabulum and a flange (120) extending from the cup portion. The flange including a first, bone contacting surface (126) configured to face bony tissue surrounding the acetabulum when the cup portion is implanted into the acetabulum and a second, top surface (127) opposite the first surface. The flange includes a flexible portion (130) and a fixation portion (122), the fixation portion including one or more fixation features (124) configured to facilitate fixation of the flange to the bony tissue surrounding the acetabulum. The flexible portion is arranged and configured to enable the flange, and hence the fixation portion, to move relative to the cup portion to facilitate placement of the flange relative to the bony tissue.

An artificial hip joint stem is used to replace the damaged femoral head or acetabulum and includes a stem body having a head fixing part, which fixes a head, and an operating space horizontally opened at the upper side thereof. A head insertion hole connects to the operating space. A screw part is inserted into the head insertion hole. An operation converting part is inserted into the operating space to vertically move by the screw part when the operation converting part is connected to the screw part. A fixing bracket is inserted into the operating space such that the screw part is fixed to rotate without changing the depth thereof. A variable operating part is inserted into a supporting surface of the stem body to adjust a horizontal width by means of the operation converting part. A movable pin fixes the variable operating part to the operation converting part.

An injection device for delivering equal doses of a fluid contained in a reservoir, the device having a housing, and an arming mechanism and a dose delivery mechanism arranged therein, the housing coupled to an enclosure for the reservoir. The arming mechanism includes an axially non-displaceable and rotatable setting sleeve. The setting sleeve is coupled with a spring strained by the rotation of the setting sleeve during arming of the device. The dose delivery mechanism includes a screw ring and a nonrotatable and axially displaceable piston rod within the setting sleeve. The piston rod cooperates with the screw ring so that during arming, the screw ring and the piston rod are immobilized, and during delivery of each dose the piston rod is displaced along the housing due to unwinding of the spring and rotation of the screw ring, the displacement of the piston rod causing the fluid to be discharged from the reservoir.

An implant system includes an acetabular implant and a bone screw having an articulated screw head which allows an unchanged contact position of the screw head on the acetabular implant when the bone screw is aligned relative to the acetabular implant. For this purpose, a slotted hole is made in the acetabular implant in which slotted hole the bone screw can be pivoted in longitudinal direction of the slotted hole.

A modular acetabular cup assembly for use with multiple bearing liners is disclosed. The acetabular cup assembly includes a shell having a tapered inner wall and two circumferential grooves. The shell may be used with polyethylene, ceramic, metal, and other types of liners.

A method of implanting a medical device including forming a tunnel at least partially through a patient's bone, placing the medical device on the bone so that a stress-diffusion element (i.e., a stem) extending from the medical device at least partially extends into the tunnel, and securing the medical device to the bone. The medical device includes a hemispherical cup having a bone-abutment exterior surface, an interior surface defining a cavity, a circumferential rim extending between the exterior surface and the interior surface, and at least one aperture extending between the exterior surface and the interior surface. The stress-diffusion element is formed to extend from and be oriented with respect to the cup based on whether the surgical implant is to be used on a left side or right side of the patient for reconstruction of the segmental acetabular defect.

An implant system includes an acetabular implant and a bone screw having an articulated screw head which allows an unchanged contact position of the screw head on the acetabular implant when the bone screw is aligned relative to the acetabular implant. For this purpose, a slotted hole is made in the acetabular implant in which slotted hole the bone screw can be pivoted in longitudinal direction of the slotted hole.