Abstract: A bone graft system for providing bone graft material to a site of interest includes a multiple unit bone graft material loading device and a conduit. The multiple unit bone graft material loading device may be configured to accept a plurality of pre-formed bone graft material units and includes a plurality chambers configured to accept a pre-formed bone graft unit. The conduit may include a first opening and second opening. The first opening may be operably connected with the multiple unit bone graft material loading device to accept bone graft material from the multiple unit bone graft material loading device. The second opening may be configured to deliver bone graft material to a site of interest.

Abstract: A minimally invasive surgical access device that allows access to a pathology being treated while significantly reducing the risk of damaging anatomical structures proximate the pathology. The access device includes a base portion having a central bore extending therethrough, and retractor blades pivotably mounted to the base portion. An insertion handle is coupled to the base portion to thread the retractor blades into the patient. The insertion handle is removed from the base portion, and a core hollow screw is threaded into the base portion to separate the retractor blades to gain access to the pathology through the hollow screw.

Abstract: A bone collection system includes a plunger, a tube, and a manifold. The plunger has a bore therethrough, an insertion portion, and an inlet that accepts material being harvested from a patient. The insertion portion includes a filter to prevent passage of bone fragments. The tube accepts the insertion portion, defining a first and a second chamber of the tube. The filter separates the first and second chambers of the tube. The manifold is accepted by the tube, and has an outlet accepted by a suction source. The inlet of the plunger is in fluid communication with the first chamber, the first and second chambers are in fluid communication through the filter, and the second chamber is in fluid communication with the outlet. Material being harvested is drawn through the bone collection system, and bone fragments of the desired size collected in the first chamber.

Abstract: A minimally invasive surgical access device that allows access to a pathology being treated while significantly reducing the risk of damaging anatomical structures proximate the pathology. The access device includes a base portion having a central bore extending therethrough, and retractor blades pivotably mounted to the base portion. An insertion handle is coupled to the base portion to thread the retractor blades into the patient. The insertion handle is removed from the base portion, and a core hollow screw is threaded into the base portion to separate the retractor blades to gain access to the pathology through the hollow screw.

Abstract: An expandable cage for maintain the position of adjacent vertebrae includes a cage top, a cage bottom, and a plurality of shims. The cage top is adapted for contacting a bottom surface of the upper of the adjacent vertebrae, and the cage bottom is adapted for contacting an upper surface of the lower of the adjacent vertebrae. The plurality of shims are adapted for insertion between the cage top and cage bottom to expand the cage. The shims include a proximal end having a bone graft distribution feature configured such that when bone graft material is introduced to the site of the expandable cage, the bone graft material is separated at the bone graft distribution feature and distributed to either side of the cage.

Abstract: A minimally invasive interbody device assembly that includes an interbody device that restores the disc space height between two vertebrae and an instrument detachably coupled to the interbody device for positioning the device in the disc space and delivering bone material to the disc space that is distributed on both sides of the interbody device. The device is inserted into the disc space using the instrument in a direction so that the wide dimension of the device is substantially parallel to the body of the vertebrae. The device is then rotated by the instrument so that the wide dimension of the device becomes perpendicular to the vertebral body so as to cause the disc space height to be restored. Bone graft material is then forced down the instrument so that the bone graft material is distributed on both sides of the device. The instrument is then detached from the device.

Abstract: A surgical access device assembly that allows access to a pathology being treated while significantly reducing the risk of damaging anatomical structures proximate the pathology. The access device assembly includes a base portion having a central bore extending therethrough, and retractor blades pivotably mounted to the base portion. An insertion handle is coupled to the base portion to thread the retractor blades into the patient. The insertion handle is removed from the base portion, and a core hollow screw is threaded into the base portion to separate the retractor blades to gain access to the pathology through the hollow screw.