A cutting burr that includes a pair of axially spaced diamond-shaped portions designed to be keyed into a spindle of a locking mechanism of a high speed surgical drilling instrument and adapted to fit into a single pawl thereof to lock said cutting burr in place so as to prevent axial movement thereof and provide concentric rotation of said cutting burr without any wobbling. The orientation of both portions may be identical with respect to a center plan and diamond shape in the portion at the proximal end of the shank of the cutting tool may be larger than the intermediately located diamond shape of the other portion. The apexes of the facets of the six-sided diamond shape may be disposed below the surface of the shank of the cutting burr.

Disclosed is an apparatus for use with an instrument handle, the apparatus including a housing, a knob receivable in the housing, the knob having a key hole structure to receive an instrument bulb and neck, a slot in the housing to receive the knob, wherein the knob is pressed into the slot to facilitate installation and removal of the instrument bulb and neck.

A surgical grip for receiving a handpiece shaft for conjoint rotation therewith and/or for receiving a medical tool in such a way as to transmit torque, includes a carrier sleeve on which at least one coupling component provided for coupling the handpiece shaft is attached such that the at least one coupling component can be brought to a coupled position and to an uncoupled position in the operating state, wherein the at least one coupling component can be brought into contact with an activation unit which is arranged between the carrier sleeve and to an outer actuation sleeve, wherein a rotation securing unit present inside the actuation sleeve acts on the activation unit in a spring-biased manner in the operating state such that the activation unit is held secure against rotation relative to the carrier sleeve.

This disclosure relates to a drill assembly and method for preparing a surgical site. The drill assembly disclosed herein may be utilized for removing bone prior to positioning a graft and/or implant at a surgical site.

Tool assemblies, system, and methods for manipulating tissue and methods for performing a surgical procedure on a vertebral body adjacent soft tissue. A manipulator moves an end effector, and a screw is coupled to the end effector. A sleeve is disposed coaxially around the screw, and the screw and the sleeve are releasably engaged to one another. A navigation system is configured to track the vertebral body, and one or more controllers control the end effector to advance the screw relative to the sleeve along an insertion trajectory defined with respect to a surgical plan. The screw disengages the sleeve during advancement, and the screw is secured to the vertebral body. A distal working portion of the screw may be freely slidable through a distal end of the sleeve when disengaged. The screw may be a tap marker removably couplable with a tracking device of the navigation system.

Selectively lockable holding arrangements for a surgical access assembly are disclosed. One holding arrangement includes a body portion, an engagement barrel and a retaining member configured as a hook at a distal end of the body portion. The engagement barrel is position on a proximal end of the body portion and is configured to be selectively rotated about the body portion when operatively connected to a surgical holding arrangement. A rotation brake is mounted on the body section. The rotation brake is selectively operable to lock the engagement barrel against rotation.

An end effector is disclosed for use with a surgical robotic manipulator and a cutting accessory. The end effector comprises a nose tube for receiving the cutting accessory and an actuator for driving the cutting accessory. The end effector may also comprise a mounting fixture for coupling the end effector to the surgical robotic manipulator and a handle for gripping by the user. The handle may be coupled to the nose tube and configured to rotate about the axis of the nose tube. The end effector may also comprise a lever coupled to the handle and moveable between depressed and released positions. The end effector may further comprise an activator coupled to the lever and configured to interact with a sensor for sensing the position of the lever.

A removable intramedullary canal measurement instrument is discussed herein. The measurement instrument can include an elongate body connecting an adapter clip with a plurality of measurement clips. The elongate body can extend from a first end to a second end along a longitudinal axis. The adapter clip can extend perpendicular to the longitudinal axis from the first end and be configured to secure the measurement device to a portion of a reaming instrument. Finally, the plurality of measurement clips can be distributed along the elongate body at known distances from a cutting tip of the reaming instrument when the measurement device is secured to the portion of the reaming instrument, each measurement clip of the plurality of measurement clips can be configured to engage a shaft of the reaming instrument.

Disclosed is a system to engage one or more tools. In the system a drive shaft and collet may be assembled to engage and disengage, selectively, a plurality of tools. Further, a tracking device may be used to track a location of at least a portion of the tool.

A cutting accessory for use with a powered surgical handpiece includes an elongated shaft, a tissue working member, and a proximal section. The elongated shaft has proximal and distal ends, and a longitudinal axis. The working member is attached to the distal end of the shaft. The proximal section extends proximally from the distal end and includes a plurality of faces extending inwardly from an outer surface of the shaft. Each face has at least one shallow portion and is shaped to receive a clamping member. At least two of the faces are arranged linearly, extending along the shaft proximal section. A flat extends distally forward of the distalmost face, and is located a distance from the shaft longitudinal axis greater than the distance the shallow portions are located from the longitudinal axis and less than the distance the outer surface of the shaft is from the longitudinal axis.