A system and method for tracking position and orientation of a surgical tool during a surgical procedure and providing feedback to a user are described. For example the system includes a surgical tool configured to perform at least a portion of the surgical procedure, a tracking system configured to monitor and record position information related to the surgical tool, a processing system, and a display. The processing system can be configured to receive the position information, determine optimal position information for the surgical tool during the surgical procedure, compare the received position information against the optimal position information to determine a conformance level for the user, and generate a user performance record. The display can be configured to receive and display the user performance record.

Disclosed is a surgical burr. The surgical burr includes prevention means, attachment means and a working part including at least one working means for processing of a material selected from a bone, a cartilage, a calcified tissue, a tooth and a foreign object within a patient body, wherein the working means is selected from a grinding surface and flutes defining cutting edges. The prevention means is configured to have a first position and a second position. In the first position, it at least partially prevents the working means from processing the material, when a force applied to the prevention means is less than a predetermined amount of force. In the second position, it allows the working means to process the material, when the force applied to the prevention means is equal or higher than the predetermined amount of force.

This invention relates generally to power tools, and more particularly to a portable, multifunction saw and uses thereof (e.g., for household, commercial (e.g., for use in window removal and replacement) and medical (e.g. for bone cutting) applications).

The invention relates to a method for the removal of a bone insert, for example a bone insert for a shoulder prosthesis, comprising: forming a hole of predefined diameter inside a proximal bone portion from which said bone insert is to be removed; inserting inside said hole an operating end of an instrument provided with a cutting element, wherein said cutting element is moveable to project through a side opening in said operating end, transversely with respect to a longitudinal axis of the instrument; deep-cutting by the cutting element a distal base of said bone insert, wherein said instrument is pushed and is rotated through 360 degrees around its longitudinal axis; removing the instrument from said hole; inserting and fixing a pin element inside said hole; perimetrally milling the bone insert at a predefined second diameter, by centering a milling cutter on said pin element; removing the bone insert and the pin element attached thereto.

The invention relates to an instrument and a corresponding surgical method for the removal of a bone insert, for example for a shoulder prosthesis. The instrument is of the type comprising: a stem-like body (40) extending along a longitudinal axis (x-x) and provided with a proximal grip and a distal operating head (15) slidably associated with the stem-like body (40) for movement towards and away from each other; a cutting element (30) inside said operating head; and an end tip (16) protruding coaxially from said operating head. The following is also provided: a pushing mechanism (8), inserted inside said operating head and acting on said cutting element so as to displace it angularly from a rest position, where it is concealingly housed inside said end tip, to an operative position where it projects through a side opening in the end tip; said cutting element having an end extending substantially in a direction transverse to said longitudinal axis when in the operative position.

A surgical saw assembly that is adapted for cutting an anatomy. The surgical saw assembly includes a blade guard that supports a saw blade prevent deflection or skiving of the saw blade. The blade guard is rotatably moveable and has a front edge profile that interacts with a surface of the anatomy. The front edge profile has a geometry that is at least partially curved and/or follows a non-linear path of movement to provide a smooth interaction between the blade guard and the surface of the anatomy during rotational cuts that are not directly normal to the anatomical surface.

There are disclosed systems and methods for safely and effectively removing the articular cartilage and cortical bone layers from an articular surface of a human cadaveric femoral head. One embodiment includes an osseous-sanding accessory system installed upon a conventional band saw having a motor and a cabinet that houses a pulley coupled with a primary drive shaft rotated by the motor. The accessory system may include a threaded drive shaft coupled with the primary drive shaft, a grinding disk having an abrasive surface and affixed about a distal end of the threaded drive shaft, and a removable accessory table mounted to the band saw below the grinding disk. When the motor rotates the primary drive shaft, and thus the threaded drive shaft, the grinding disk rotates relative to the accessory table and abrades osseous tissues introduced to the abrasive surface of the grinding disk. Other embodiments are also disclosed.

A passive end effector of a surgical system includes a base connected to a rotational disk, and a saw attachment connected to the rotational disk. The base is attached to an end effector coupler of a robot arm positioned by a surgical robot, and includes a base arm extending away from the end effector coupler. The rotational disk is rotatably connected to the base arm and rotates about a first location on the rotational disk relative to the base arm. The saw attachment is rotatably connected to the rotational disk and rotates about a second location on the rotational disk. The first location on the rotational disk is spaced apart from the second location on the rotational disk. The saw attachment is configured to connect to a surgical saw including a saw blade configured to oscillate for cutting. The saw attachment rotates about the rotational disk and the rotational disk rotates about the base arm to constrain cutting of the saw blade to a range of movement along arcuate paths within a cutting plane.

Methods, systems and tools are provided for controllable adjustment of a removal rate of cutting edges of rapidly rotating effectors of manually-guided material- and tissue-separating tools without significantly changing the rotation speed of the effectors or the position, orientation or the geometry of the effectors, and in particular, for precisely maintaining work space boundaries during material and tissue removal with effectors in rapidly rotating machine tools in surgery and freehand manufacturing to produce free-form surfaces. The manually-guided material-separating and tissue-separating tools and effectors allow controllable adjustment of the removal rate of the material-separating cutting edges of the effector by mechanically adjusting a position or orientation of at least one cutting edge cover at a constant rotation speed of the effector without appreciable change of the removal movement.

A saw blade includes a main body having a first surface, a second surface on an opposite side of the main body from the first surface, a proximal edge portion, a distal edge portion, and first and second side portions extending between the proximal and distal edge portions. The proximal edge portion is configured to be coupled to a rotatable hub such that the saw blade is held in a curved shape with the first surface defining an outer radius when the saw blade is coupled to the rotatable hub. The distal edge portion includes a plurality of cutting teeth, and the second surface includes a cutting structure configured such that a radius of an arc swept by the cutting structure when the saw blade is rotated is substantially equal to the outer radius of the first surface.