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.

A stylet feeder for connection to a surgical tool includes a base for attaching to a surgical tool, the base having a platform and a skirt extending distally from the platform. The stylet feeder also includes an extension protruding proximally from the platform of the base, the extension having a proximal end housing a pawl, the pawl having a distal end with a threaded portion. The base and the extension define a passage extending in a proximal-distal direction such that the stylet feeder is cannulated for accepting a stylet therethrough.

Modular orthopedic implants, associated instruments, and navigation methods. The modular orthopedic fixation assembly may include a modular bone fastener and a modular tulip head configured to be installed separately. The modular bone fastener may be installed and tracked with a screw extender instrument having an outer sleeve and an inner shaft coupled to the bone fastener. The screw extender instrument may continue to track the location and orientation of the bone throughout the surgical procedure for navigational integrity. The modular tulip head may be assembled to the bone fastener with a head inserter instrument, which ensures the modular head is properly seated on the installed bone fastener.

A surgical apparatus includes an instrument portal including a first proximal end, a first distal end, and a first elongated member, the first elongated member defining a first bore having a first dimension, wherein the first bore extends from the first distal end to the first proximal end, wherein the maximum clearance of the instrument portal is the first dimension and a drill guide reducer configured to be inserted into the instrument portal, the drill guide reducer including an elongated cylindrical member defining an enclosed body surrounding an opening, the enclosed body having an outside dimension that is smaller than the first dimension, such that the drill guide reducer is sized to fit within the instrument portal and defining an inner dimension configured to receive a drill guide, wherein the inner dimension of the drill guide reducer is smaller than the first dimension of the instrument portal.

Embodiments are directed to spinal treatments and, more particularly, to a fenestrated pedicle nail, wherein the pedicle nail performs as an anchored system for pedicle instrument constructs that prevents fracturing from over-compressing of bone of poor quality. Embodiments include a pedicle nail comprising a shank and a nail head. The shank may comprise a proximal end and a distal bone engagement end. The nail head may be disposable on the proximal end of the shank, wherein the nail head may threadably engage the proximal end thereof. The nail head may have external bone threads.

An orthopaedic driving instrument including a first end portion, a second end portion opposite the first end portion, and a central portion, intermediate the first and second end portions, comprising a central section having an outer diameter representing a maximum outer diameter of the driving instrument. The first end comprises a first driving interface sized and shaped to, in operation of the instrument, engage a screw interface of a screw for applying torque to the screw. The second end comprises a second driving interface sized and shaped as the size and shape of the first driving interface.

Embodiments are directed to a medical robot system including a robot coupled to an end-effectuator element with the robot configured to control movement and positioning of the end-effectuator in relation to the patient. One embodiment is a method for removing bone with a robot system comprising: taking a two-dimensional slice through a computed tomography scan volume of target anatomy; placing a perimeter on a pathway to the target anatomy; and controlling a drill assembly with the robot system to remove bone along the pathway in the intersection of the perimeter and the two-dimensional slice.

An assembly comprising a drive gear coupled to a shaft and a dial. The drive gear is configured to rotate along a first axis based on movement of the dial. The assembly includes a first linking member located along a second axis and configured to rotate about the second axis based on contact with the drive gear as the drive gear is rotated. The assembly includes a second linking member located along the second axis and configured to rotate about the second axis based on rotation of the drive gear and a coupling between the first linking member and the second linking member. The assembly includes a linking member selector configured to rotate about the first axis and for selecting at least a position corresponding to the first linking member that causes the coupling between the first linking member and the second linking member.

Orthopedic fixation devices and methods of installing the same. The orthopedic fixation device may include a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element and a retention member is configured to allow polyaxial rotation of the bone fastener and also to lock the bone fastener in place upon application of a force on a saddle and clamp in the coupling element.

Disclosed is a universal pedicle screw removal tool comprising a tapered shaft having an “L” shaped tip on one end and a generally square head on an opposite end. A lower section leads to a tapered section which is connected to a handle. The handle may include a set of serrations to provide increased grip. The handle is connected to the head. The tip is sized to engage the channel of a tuliped pedicle screw while the head is sized to engage a ratchet or other torque producing tool. In an alternate embodiment, the tip is “T” shaped. In another alternate embodiment, the handle section includes opposing members extending from the shaft to form a “T” shaped handle. In use, the tip is inserted into the channel of a tuliped pedicle screw while the shaft is rotated to unscrew the pedicle screw from a patient's bone.