A system, method and/or reamer driver device provides a fully closed tube which prevents the invasion of debris and minimizes abrasion of soft tissue during use. The reamer device includes a minimum number of component assemblies, so as to permit easy replacement and minimize wear.

An instrument for transmitting torque is described. The instrument comprises a torque receiving portion at a proximal end of the instrument, a torque delivering portion at a distal end of the instrument, and a flexible shaft extending between the torque receiving portion and the torque delivering portion. The flexible shaft comprises torque transmitting elements coupled in series along a longitudinal direction of the shaft. A female coupling feature of a torque transmitting element comprises a notch and a male coupling of an adjacent torque transmitting element comprises a protrusion sized to fit into the notch. The notch has a constant width or a narrowing width starting from an outer surface of the torque transmitting element comprising the notch.

A surgical instrument for transmitting torque is described. The surgical instrument comprises a torque receiving portion at a proximal end of the surgical instrument, a torque delivering portion at a distal end of the surgical instrument, and a flexible shaft extending between the torque receiving portion and the torque delivering portion. The flexible shaft comprises torque transmitting elements coupled in series along a longitudinal direction of the shaft such that one of the torque transmitting elements is rotationally fixed and tiltable relative to an adjacent one of the torque transmitting elements, wherein each of the torque transmitting elements comprises a through-hole. The surgical instrument also comprises an elongate alignment member extending through the through-holes of the torque transmitting elements, wherein the alignment member is made from a spring-elastic material. The present disclosure further provides a system comprising the surgical instrument and a method of using the surgical instrument.

A rasp for use with a powered surgical handpiece comprises opposed proximal and distal ends and a rasp region. The proximal end includes a mount portion. The mount portion defines a pivot axis. The rasp region extends between the mount portion and the distal end and includes the distal end. The rasp region has opposed first and second surfaces connecting at a common edge. The first surface is convex and the second surface is concave. The rasp region has a plurality of cutting projections disposed on at least one of the first surface and the second surface. The rasp region has a center axis substantially parallel to the pivot axis.

A surgical tool-piece and a coupling mechanism for a surgical tool-piece are provided. The surgical tool-piece is configured to be driving by a driving mechanism. The surgical tool-piece comprises a shaft having a longitudinal axis running from a distal end of the shaft to a coupling portion at a proximal end of the shaft. The coupling portion comprises a driving section comprising at least three indentations located around the circumference of the coupling portion, each indentation being configured to receive a corresponding driving element of the driving mechanism to secure the tool-piece both longitudinally and rotationally.

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.

Disclosed herein are rasp adapters, rasp systems, and method of use thereof. The rasp adapter can include a body and a retention element. The body can define a body cavity, a handle opening, and a trunnion bore. The retention element can be located within the body cavity and can include a knuckle and a heal. The knuckle can be located proximate to and movable into and out of the trunnion bore. The heal can be located proximate the handle opening. Movement of the retention element due to a force applied to the heal can cause movement of the retention element and movement of the knuckle into the trunnion bore.

A milling device for surgery, in particular prosthetic surgery, comprising a handling body containing a transmission unit terminating in attachment portions and with which there is rotatably associated a cutter, said device comprising hooking means of the releasable type associated with a distal attachment portion of said attachment portions.

Various surgical tools having a movable handle mechanism including a positioning handle are disclosed. The movable handle mechanism may be configured to move forward and backward in a longitudinal direction along the housing and rotate clockwise and counterclockwise around the housing. In various embodiments, the housing may include a plurality of channels and each channel may have at least one detent. The movable handle mechanism may be configured to securely couple to the housing via one channel of the plurality of channels and one detent of the plurality of detents. At least one surgical tool may include a drill having an angled tip portion and a sleeve configured to protect adjacent structures from lateral edges of the drill bit when the drill bit is rotating. Another surgical tool may include a screwdriver having an elastic retaining clip configured to progressively release a bone screw therein at an extraction force.

A surgical drill bit for bone drilling and for determining a characteristic of a drilling medium from a characteristic of fluid flow. The surgical drill bit includes a shank portion for coupling to a drill chuck. The shank portion defines a proximal opening. The surgical drill bit also includes a drilling portion for drilling through bone. A distal cutting region (62) of the drilling portion includes a rake surface (66), a clearance surface (68), and a flank surface (70). The flank surface (70) defines a distal opening (72) and is configured to abut the bone such that the distal opening is occluded by the bone while the rake surface is cutting into the bone. The shank and drilling portions collectively define an inner channel in fluid communication with the proximal and distal openings. The distal opening is occluded by the bone during drilling to establish fluid pressure within the inner channel.