A compression screw for applying compression at a bone joint. The compression screw includes an axial screw body extending from a distal end to a proximal end with the distal end including a series of bone engaging threads configured to be self-drilling and self-tapping and the proximal end including a head which defines a radially extending shoulder. At least one proximal rotary cutting structure is defined proximally of the bone engaging threads. The at least one proximal rotary cutting structure is configured to be self-drilling such that a proximal portion of the axial screw body cuts into and advances within a bone of the bone joint as the axial screw body is advanced. A method of inserting the compression screw is also provided.

A tissue fixation implant that includes leading fixation and trailing fixation members, each fixation member having a proximal head and an elongate shank with a distal tip, and each fixation member adapted to at least partially contact the other fixation member at one or more points along their respective lengths. The tissue fixation implant includes a proximal inter-engagement feature for fixedly engaging each of the two fixation members relative to one another when engaged within tissue, including bone tissue, soft tissue, and combinations of these, and has an interior chamber suitable for receiving osteogenic material to enhance new bone growth and fusion of the fixation implant within bone.

A bone anchoring device includes a shank to be anchored in a bone or vertebra, a head, and a receiving part receiving the head for connecting the shank to a rod. The shank and the head are separate parts. The head has a bore with a cylindrical inner surface, a ring-shaped groove provided on the inner surface, and at least one slit extending from the inner surface to the outer surface of the head. The shank has a first portion for anchoring in the bone or vertebra and a second portion with a cylindrical outer surface adjoining a free end. A projection is provided on the cylindrical outer surface which engages with the ring-shaped groove of the head, when the cylindrical second portion of the shank is inserted in the bore of the head.

A device for treating fractures, comprises a plate receiving structure including on a bone facing side thereof a recess sized and shaped to receive a fixation plate anchored in a desired position on a bone and a mating structure sized and located to engage a corresponding structure of the fixation plate to prevent relative movement between the fixation plate and the device in combination with at least one leg projecting laterally away from the recess, a first one of the at least one legs including a first fixation element receiving hole extending therethrough, the first leg being positioned and oriented so that, when the device is received on a fixation plate anchored to the bone in the desired position, the first fixation element receiving hole is aligned to pass a fixation element inserted therethrough into the bone without passing through a longitudinal axis of the medullary canal.

Assemblies for securing fractured bone are provided. The assembly includes a first fixation element, a second fixation element, and an adjustable flexible member construct. The first fixation element having a male or a female sleeve is secured within a first portion of the fractured bone. The second fixation element having the other of the male or female sleeve telescopically received within the one of the male or female sleeve is secured within a second portion of the fractured bone. The adjustable flexible member construct extends between the first and second fixation elements and has at least one adjustable loop coupled to the first fixation element and the second fixation element and a pair of adjusting ends extending through an opening in the first fixation element. The pair of adjusting ends can be pulled to reduce a diameter of the adjustable loop and to compress fragments of the fractured bone.

The present invention relates to stable fixation of spine segments, allowing for fusion in, e.g., skeletally mature patients. More particularly, the invention relates to a bone fixation device that can be affixed to vertebrae of a spine to provide reduction (or enlargement) capabilities and allow for fixation in the treatment of various conditions, including, e.g., spondyloslisthesis, degenerative disc disease, fracture, dislocation, spinal tumor, failed previous fusion, and the like, in the spine. The invention also relates to a method for delivering and implanting the bone fixation device.

The disclosure relates to medical devices and methods of manufacturing medical devices. An orthopedic screw includes an inner core member having a head having a first outer diameter, a tip having a second outer diameter, and a body extending between the head and the tip and having a third outer diameter that is less than the first outer diameter and the second outer diameter. An outer body member is disposed circumferentially around the body of the inner core member and defines an outer body member external thread. The tip of the inner core member can define an inner core member external thread that forms an interrupted thread with the outer body member external thread.

A spinal implant assembly comprising an intervertebral device configured to be installed in a spinal disc space, the intervertebral device having a head component and a body component, the spinal implant assembly further comprising a coupling body for coupling the head component of the intervertebral device and an elongate member, the coupling body and head component each having a longitudinal axis, wherein the head component can be received by the coupling body with its longitudinal axis at a selected angle within a predetermined range of angles relative to the longitudinal axis of the coupling body.

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 is 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.

An anchor to be screwed into a hole with high primary stability and eventually even higher secondary stability. A right hand thread form winds with continuous turns along the body of the anchor. A trailing flank of the thread form is back-angled. The central region includes an array of flutes having left-hand helical twist. Each flute is composed of distinct flute segments. A condensing ramp is formed along the crest of the thread form between two circumferentially—adjacent flute segments. Each condensing ramp is pitched about 20° so as to apply a localized compressive strain to the interior surface of the host bone with a densifying action when the anchor is screwed into the prepared hole. The condensing ramps create induced stress and super-activated zones in the bone directly adjacent to healing chambers formed by the flute segments. The healing chambers draw bone to naturally encourage and promote healing.