A minimally invasive intervertebral implant includes a circuitous body defining a luminal axis extending longitudinally therethrough. The circuitous body includes proximal and distal ends oppositely disposed along a lateral axis of the circuitous body. Each of the proximal and distal ends includes an aperture disposed therethrough such that the circuitous body includes a first configuration wherein the proximal and distal ends are at a maximum separation and a second configuration wherein the proximal and distal ends are closer together than in the first configuration.

A joint replacement implant is disclosed. The implant includes a body having a bone contact surface and an articulation surface. An expandable stem extends longitudinally from the bone contact surface. The expandable stem includes a plurality of flanges. The plurality of flanges are expandable from a first diameter to a second diameter to anchor the implant to a bone.

Apparatus and associated methods relate to a laterally expandable spinal implant configured with pivoting wings adapted to secure the implant when inserted between vertebrae with stabilizing force applied to the vertebrae by shaft-driven wedges coupled with the wings. In an illustrative example, the wings may pivot along a hinge axis to swing outward from the implant central body until they press against vertebral endplates superior and inferior. The hinge may be, for example, disposed longitudinally to the implant central body. In some examples, four wings may be mounted axially in the implant central body. Some embodiments may include shaft-driven wedges coupled with the wings and adapted to force the wedges out laterally from the central body. Various examples may advantageously provide improved post-implant spinal stability, enhanced post-implant bone growth, and increased implant contact area with bone, based on the implant pressing the wings against the endplates as the shaft rotates.

A surgical instrument includes a housing, an outer shaft, an inner shaft, a trial sizer, a rod, and a head. The outer shaft is operatively coupled with the housing such that rotation of the housing causes axial displacement of the outer shaft. The outer shaft includes a keel cutter configured to form a channel in a vertebral body. The inner shaft disposed within the outer shaft. The trial sizer is configured to be received in intervertebral space. The trial sizer includes a pair of wings transitionable between a retracted position and an extended position in which the pair of wings extends transversely outward. The head is connected to the rod, wherein the head is operatively coupled with the pair of wings such that axial displacement of the rod causes transition of the pair of wings between the retracted and extended positions.

A tool for delivery and/or compaction of bone graft material includes a cannula with an inner lumen extending along a longitudinal axis from a hopper end of the cannula to a delivery tip of the cannula. A hopper with an internal volume for storing bone graft material is connected to the hopper end of the cannula with the internal volume of the hopper in communication with the inner lumen of the cannula for delivery of bone graft material from the hopper to the delivery tip of the cannula. An output shaft within the inner lumen extends along the longitudinal axis. The output shaft includes a helical screw thread extending radially outward from the output shaft toward an inner surface of the cannula. An actuator is connected to the hopper and to the output shaft to drive the output shaft rotationally relative to the hopper and to the cannula.

Apparatus and associated methods relate to a laterally expandable spinal implant configured with pivoting wings adapted to secure the implant when inserted between vertebrae with stabilizing force applied to the vertebrae by shaft-driven wedges coupled with the wings. In an illustrative example, the wings may pivot along a hinge axis to swing outward from the implant central body until they press against vertebral endplates superior and inferior. The hinge may be, for example, disposed longitudinally to the implant central body. In some examples, four wings may be mounted axially in the implant central body. Some embodiments may include shaft-driven wedges coupled with the wings and adapted to force the wedges out laterally from the central body. Various examples may advantageously provide improved post-implant spinal stability, enhanced post-implant bone growth, and increased implant contact area with bone, based on the implant pressing the wings against the endplates as the shaft rotates.

Disclosed are devices for the fixation and support of vertebrae, particularly spinal implant devices having adjustability in size, shape and/or configuration.

A system and methods for a safe and efficient distributing of bone graft material into an intervertebral disc space are provided. Systems are provided for receiving, removing, and replacing of preloaded load cartridges in a rapid and repeating manner. The systems can also be designed for rapidly delivering the biologics from a single load cartridge and, to even further facilitate a rapid and repeating delivery of biologics, the load cartridge and cartridge tamp can be adapted so that the cartridge tamp can capture and remove the load cartridge after delivery of fusion promoting material in the load cartridge.

In some aspects, a device comprising an implant configured for insertion into a portion of human anatomy, and at least one covering coupled to the implant is provided. According to some aspects, the implant comprises one or more protrusions configured to prevent leakage of material and/or to resist displacement of the implant. According to some aspects, the covering is configured to facilitate improved leakage and/or implant displacement prevention.

Provided is a four-directional extended intervertebral fusion cage device including a front support, a rear support, and four plates having front ends engaged with the front support and rear ends engaged with the rear support, and configured to slide up in four different directions on inclined surfaces of the front support and the rear support and increase a height and a width of the cage device simultaneously, when the front support and the rear support move toward each other, facing each other.