Described herein are devices, systems and methods for treating disease and/or infection by the release of silver from an implant over an extended period of time. In particular, the devices described herein may be used to treat infections such as osteomyelitis by the controlled release of silver ions from multiple sites of an extended-use implant. This implant typically includes a plurality of arms that both anchor and help distribute the released ions within the tissue. Power may be applied to release the silver ions into the tissue.

A receiving part of a bone anchoring device includes a channel adjacent a first end for receiving a bone fixation element, the channel forming two free legs each having an engagement structure for engaging a locking element to lock the bone fixation element in the channel, an outer surface portion, and at least one projection for engaging an instrument to connect the instrument to the receiving part. The projection projects radially outwardly from the outer surface portion, is spaced apart axially from the first end of the receiving part, and has a circumferential width less than a circumferential width of the legs. The projection has a first side wall that faces the first end. At least part of the first side wall is inclined towards the first end as the first side wall extends circumferentially, to form a region of the projection that narrows towards the first end.

Systems, apparatuses and methods for bone fusion are disclosed. In particular, a fixation screw assembly is provided that comprises a bone engagement portion including a shaft and a head member. The assembly also includes a flexible washer member that can be operably attached and secured around the head member of the bone engagement portion. The washer member is polyaxial relative to the bone engagement portion, such that it can assume a variety of angles. The washer member can help prevent back out of the bone engagement portion when the bone engagement portion is implanted into a bone member. The design of the fixation screw assembly can be used in different fusion procedures, including fusion of the sacroiliac joint.

The invention relates to a biodegradable, magnesium-containing bone screw for implanting into a patient body for use in medical applications, such as, orthopedic and craniofacial surgery. The bone screw has a tapered head, a threaded shaft and pointed tip. The composition of the bone screws provide for improved biodegradability and biocompatibility, and the features of the structure of the bone screws facilitates guidance and placement during implantation as well as reduces the potential for mechanical failures. Moreover, the bone screws are effective to provide targeted release of magnesium ions resulting in enhanced new bone formation.

A threaded medical implant comprising a biocomposite, said biocomposite comprising a polymer and a plurality of reinforcement fibers, wherein a weight percentage of a mineral composition within the biocomposite medical implant is in the range of 30-60%, wherein an average diameter of said fibers is in a range of 1-100 microns, said medical implant being threaded with a plurality of threads; wherein said fibers comprise a plurality of helical fibers and a plurality of longitudinal fibers; wherein a weight to weight percent ratio of said helical to said longitudinal fibers is from 90:10 to 10:90.

The invention relates to a composite material comprising polyaryletherketone, reinforcement fibre, and contrast agent. The reinforcement fibre is present in an amount of 52 to 58 volume % based on the total volume of the composite material.

The device of the present disclosure is configured for laparoscopic use, particularly to insert a fastener into a plate at an angle of up to 180° from the plane of insertion. The device is further configured to carry a plurality of fasteners, a tightening tool, a cutting device, and tweezers simultaneously to facilitate a rapid procedure while lessening the chance of infection by limiting the amount of times the device must be removed and re-inserted.

A bone anchor includes a shank with a first end, an opposite second end, and a longitudinal axis. The shank includes a core, a thread that extends in a helix around the core and that has a lower flank directed towards the first end and an upper flank directed towards the second end, wherein the upper flank and the lower flank define a first cross-sectional thread shape, and an additional thread structure including a recess that extends together with part of the thread in the helix around the core. The thread and the additional thread structure together define a second cross-sectional thread shape different from the first cross-sectional thread shape. An axial length of the portion of the thread that has only the first cross-sectional thread shape is greater than an axial length of the entire portion of the thread that includes the second cross-sectional thread shape.

A bone screw may be insertable into a bone, and may have a proximal member, a distal member with bone-engaging threads, wherein the distal member is configured to slidably engage the proximal member such that a variable-length cavity is defined within the proximal member and the distal member, and a tension member residing at least partially within the variable-length cavity. The tension member may have a proximal end coupled to the proximal member and a distal end coupled to the distal member such that, in response to motion of the distal member away from the proximal member, the tension member elongates and urges the distal member to move toward the proximal member. The proximal member and the distal member may be interconnected to share bending loads at a bending transmission feature.

Intradiscal implants, systems, and methods thereof. The intradiscal system may include an expandable implant and one or more intradiscal implants. The intradiscal implants may be supplemental to or integrated with the expandable implant. The intradiscal implant may include one or more flexible anchors with a straight configuration and a curved configuration. The anchor may be bendable, for example, using a shape-memory material.