An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical/mini open approaches and the percutaneous, “ultra-MIS” techniques.

A power tool for removing an intervertebral disc and preparing vertebral endplates is described. The power tool may include a cutting element, and the height of the cutting element may be adjustable. The cutting element may be a braided cable and may include one or more beads to enhance the effectiveness of the cable. The cutting element may have a minimum height requirement, which may not be satisfied in patients with a collapsed disc due to degenerative disc disorder. For these patients, also described are bone tamps for increasing the intervertebral distance and providing access to tissues distal to the tamp. One type of bone tamp features an inflatable balloon with an inner lumen. Another type of bone tamp includes an expanding distal end and an inner cannula. Also described is a manual expander scraper tool that is compatible with both types of bone tamp.

Robotic systems and methods include a robotic manipulator and a skin incision tool to be coupled to the robotic manipulator and being configured to create an incision in skin of a patient. A skin tracker is attached to the skin of the patient to track the skin of the patient. A robotic controller controls the robotic manipulator to move the skin incision tool relative to a determined location on the skin of the patient. The robotic controller controls the robotic manipulator to constrain movement of the skin incision tool with a haptic object defined relative to the determined location to guide the skin incision tool to the determined location for making the incision in the skin.

A bone screw for sacroiliac joint fusion is characterized by a longitudinal bone screw and a cylindrical sleeve received on a proximal end of the bone screw. The sleeve has axially extending fins or flutes on its outer surface that extend generally from one end of the sleeve to the other end of the sleeve. This feature allows the sleeve to resist reverse rotation which, in turn, aids in preventing back-out of the bone screw once installed. The bone screw has a self-tapping tip that allows the bone screw to be installed without need for a pilot hole, and self-harvesting geometry that gathers and retains bone shavings in and along the bone screw that are produced by bone screw installation for use as graft for bone fusion.

Systems, instruments, and methods for surgical navigation with verification feedback are provided. The systems, instruments, and methods may be used to verify a trajectory of a surgical tool during a procedure. The systems, instruments, and methods may receive one or more captured images of an anatomical portion of a patient; execute a surgical plan to insert the surgical tool into the anatomical portion; receive sensor data collected from one or more sensors being inserted into the anatomical portion; determine whether the sensor data corresponds to the surgical plan; and send, in response to determining that the sensor data does not correspond to the surgical plan, an alert indicating that the surgical tool is not being inserted according to the surgical plan. The one or more sensors may be attached to the surgical tool.

A surgical tool for use with a drill bit to prevent skiving at an implant insertion site on a bone includes a cannulated sleeve having a distal end defining a burr surface. The distal end may be detachable from a body of the cannulated sleeve. The tool may be used with more than one distal end, each of the distal ends defining a burr surface having a different cutting surface from the others. The tool may form a system that includes the drill bit.

An orthopedic implantation operation system includes a power drill mechanism and a linear advancing mechanism. The linear advancing mechanism includes a linear motor; the linear motor is connected with the power drill mechanism to drive the power drill mechanism to make a linear reciprocating motion to realize the advancement motion of the surgical tool. The present invention provides the driving force of the linear reciprocating motion of the power drill mechanism through a linear advancing mechanism, and combines with a power drill mechanism to clamp surgical tools such as a guide pin, reamer, tap and a vertebral pedicle screw, etc. so as to realize the operation of orthopedic implantation. Compared with artificial orthopedic implantation operations, the operation is stable, the impact on the human body is small, and the operation efficiency and accuracy of orthopedic implantation operations are higher, avoiding accidental injuries that may be caused by manual orthopedic implantation.

Systems, methods, and devices are disclosed for surgical instruments, systems, and methods for preventing skiving of a drilling instrument during a robotic or robot-assisted surgery are disclosed. In one embodiment, a scan of a patient's anatomy can be performed to produce a model of the bone to be drilled into and analysis of the surface can determine if the curvature is such that, if a target trajectory for a bore were followed, skiving of the drilling instrument is likely. If so, an alternate anti-skiving trajectory can be determined. The anti-skiving trajectory of a bore differs from the target trajectory by at least one of entry point, diameter, axis, or depth.

An articulating surgical implement (1) comprising: an elongate body (2) having a proximal end (4) and a distal end (5) and a longitudinal axis (6); a grip (7) on the proximal end for holding the surgical implement; a surgical implement head (8) formed on the distal end of the elongate body, and having surgical implement jaws (10, 11), the surgical implement head having a first joint (13) It that allows the surgical implement jaws to move relative to each other to open and close for gripping or cutting; a second joint (12) on the distal end of the elongate body for changing the angle of the surgical implement head relative to the longitudinal axis of the elongate body; a mechanism comprising a control lever (35), a control rod (39) and a linkage arm (40) for changing the angle of the surgical implement head relative to the longitudinal axis of the elongate body through an angular range of movement by pivoting about an axis of rotation of the second joint; and a mechanism comprising a pulley wheel (50) and a push/pull wire (51) for opening and closing the surgical implement jaws. The surgical implement head may be a rongeur and is operable at 90 degrees to the elongate body in either an upbite or downbite position. It has an angular range of movement of 180 degrees. A desired angle of the surgical implement head is selected by a user, for example for tissue removal from a target site.

A method of fusing a first bone and a second bone. An abrading and harvesting device is provided that includes a needle portion having a sharpened tip. The needle portion has a central bore extending therethrough. The needle portion has a proximal end and a distal end. The sharpened tip is attached to the distal end of the needle portion. A probe is provided having an unsharpened tip portion. The probe is extended between the first bone and the second bone. The needle portion is extended over the probe by passing the proximal end of the probe through the central bore. The first bone and the second bone are abraded with the sharpened tip to cause bleeding bone to be exposed on the first bone and the second bone. A device is placed along a path formed by the needle portion between the first bone and the second bone.