Disclosed are devices and methods for creating a bore in bone. The devices and methods described involve driving a rotating bit in an axial direction such that both rotation and linear movement are controlled and measurable. The instrument is useful for a surgeon to control and simultaneously measure the travel of the tool into the bone and prevent injury to surrounding structures.

A device for sterile coupling of a percutaneous surgical instrument to a rotary drive tool (5). The device has a flexible envelope (1) intended to confine the drive tool (5), a connector piece (3) for coupling to the percutaneous surgical instrument via one end and to the drive tool (5) via its other end by passing through the envelope via an opening (12), and also a tubular ring (2) positioned on the inner surface of the envelope (1) in the area of the opening (12) and configured to rigidly connect the envelope (1) to the body of the drive tool (5). The connector piece (3) is configured to be able to pass through the ring and turn freely inside the ring when driven by the rotary drive tool (5). The connector piece (3), the ring and the envelope have means (22, 34, 14) which interact in order to form a leaktight barrier between the inside and the outside of the envelope (1) in the area of the opening (12).

Methods for creating a void within a bone. An elongate member is directed into a tube of an access cannula, and a handle is positioned adjacent the access cannula. A working tip and pre-bent elbow are disposed within the tube such that the pre-bent elbow is straightened. The device remains slidable relative to the access cannula. A control assembly is actuated to distally move the shaft relative to the handle. Bone adjacent the tube of the access cannula may resist the working tip from protruding from the access cannula so as to displace the handle of the device proximally, or the handle may be manually maintained adjacent the access cannula. The pre-bent elbow and the working tip are moved beyond the distal end of the tube to be freed from the constraint of the tube of the access cannula to assume a curve within the bone.

An oscillating decorticating burr assembly for decortication of the articular surfaces of joints of the human body is disclosed. The oscillating decorticating burr assembly comprises a burr, a burr-support post, and a handle. Power is imparted to the assembly by way of a user input on the handle causing oscillation of the burr.

A keyless coupling for a tool shaft and a handpiece of a surgical instrument having a first coupling section, which is provided on a proximal section of the tool shaft, a second coupling section, which is provided on a distal section of a shaft holder of the handpiece, and a locking/unlocking element. The locking/unlocking element is arranged on the tool shaft and forms a latching section, and the shaft holder has an undercut for receiving the latching section in a locking position of the two coupling sections such that the latching section and the undercut are in latching engagement with one another and secure the two coupling sections against a relative axial movement with respect to one another at least in the pulling direction.

An orthopaedic reamer connector includes a holder section shaped to allow for connection of an orthopaedic reamer, the holder section including a connection surface and two pairs of holders associated with the connection surface, each of the two pairs of holders having a first holder and a second holder that forms an acute angle relative to the first holder, the first holders being opposed to each other by about 180 degrees and the second holders being opposed to each other by about 180 degrees; and a stop section mechanically interlocked with the holder section so as to prevent relative rotation therebetween and including a pair of stops associated with each of the two pairs of holders, each of the pair of stops having a first stop associated with the first holder and a second stop associated with the second holder.

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.

A tool for use with a surgical robotic manipulator that comprises an energy applicator including a shaft extending along an axis between a proximal end and a distal end. The shaft has a retention surface and an ejection surface. A tool assembly comprises a support structure to support the energy applicator and an axial connector assembly arranged to engage and releasably lock the energy applicator to the support structure in a locked state via the retention surface. The tool assembly is also configured to apply an ejection force to the energy applicator to provide a tactile indication to the user that the energy applicator is not fully engaged by the axial connector assembly if a suitable force is not provided by the user to overcome the ejection force and place the energy applicator in the locked state.

An aiming device system that is configured to align at least one bone anchor guide to a first distal hole of an intramedullary nail can include an aiming arm that is configured to be operatively coupled to the intramedullary nail and an aiming guide. The aiming arm can define a sliding support that is elongate along a first direction. The aiming guide can include a guide body that defines at least a first bone anchor guide. The aiming guide is attached to the aiming arm such that the aiming guide is selectably movable along the sliding support, and selectably rotatable relative to the aiming arm. When the first bone anchor guide is retaining the guide sleeve, at least one of the selectable movement and selectable rotation of the guide body at least partially aligns the first bone anchor guide with the first distal hole of the intramedullary nail.

The present disclosure provides medical instruments and medical instrument components having targeted torsional failure. Such targeted torsional failure helps prevent a surgeon from applying excessive torque that may damage an implant or bone, and also helps avoid the problems and complications that arise when medical instruments break within patients during surgical procedures. To provide such targeted torsional failure, the disclosed medical instrument components include a breakaway section designed so that the component breaks at a desired amount of torque, at a desired location, and in a desired way. The provided medical instrument components may also include a sleeve to increase side-loading strength that may otherwise be reduced due to the breakaway section. The increased side-loading strength may help prevent accidental bending-type failures. The presently disclosed medical instrument component therefore provides targeted torsional failure without sacrificing side-loading strength.