A medical device for implantation in a hip joint of a human patient, the natural hip joint having a ball shaped caput femur as the proximal part of the femoral bone with a convex hip joint surface towards the center of the hip joint and a bowl shaped acetabulum as part of the pelvic bone with a concave hip joint surface towards the center of the hip joint. The medical device comprising; an artificial caput femur, comprising a convex surface towards the center of the hip joint. The artificial convex caput femur is adapted to, when implanted: be fixated to the pelvic bone of the human patient, and be in movable connection with an artificial acetabulum surface fixated to the femoral bone of the patient, thereby forming a ball and socket joint. The medical device further comprises a fixation element comprising a fixation surface adapted to be in contact with the surface of the acetabulum and adapted to fixate the artificial convex caput femur to at least the acetabulum of the pelvic bone.

An orthopedic drill bit that is configurable to form a first bone tunnel having a first bore when inserted through a bone and a second, larger bore as the drill is partially withdrawn from bone to produce a reverse counterbore for accepting an anchor. The drill bit has a shaft with a pivotal cutting tip that is movable from a narrow boring configuration into a wider boring configuration. The drill bit has a body enclosing the shaft that is biased into engagement with the cutting tip. Rotation of the body allow a user to move the cutting tip from the narrower bore configuration used to drill a pilot hole into a wider bore configuration used to drill a reverse counterbore for accepting the anchor.

A bone removal device, including: an elongated shaft having a longitudinal axis, a distal end and a proximal end; a bone borer having a distal drilling tip configured to drill into a bone tissue and at least one proximal reamer, wherein the bone borer is movably coupled to a distal end of the elongated shaft, wherein the bone borer is configured to move between a drilling state in which the drilling tip is placed in contact with bone tissue, and reaming states in which the at least one proximal reamer is placed in contact with the bone tissue.

A milling head for a milling tool for prosthetic surgery operations and a milling tool comprising said milling head.

A flip cutter and drill instrument and method of antegrade drilling and retrograde cutting using such an instrument. The flip cutter and drill instrument is provided with a drill which has a multi-blade configuration and which engages an inner tube or inner member of the instrument to articulate between at least a first “straight” position (for example, about parallel to the longitudinal axis of the instrument) when the instrument is in the drilling mode, and at least a second “flip” position (for example, a non-parallel position relative to the longitudinal axis of the instrument) when the instrument is in the cutting mode.

The disclosure provides example methods, systems and apparatus for stabilization of a rib. An example method includes: (a) accessing a medullary canal of a rib having a fracture, (b) advancing a guidewire into the medullary canal across the fracture, (c) advancing a delivery catheter containing a stent over the guidewire into the medullary canal and across the fracture, (d) retracting the delivery catheter relative to the stent, and (e) expanding the stent in the medullary canal.

Various torque-limiting screwdriver devices, systems, and methods are disclosed. The screwdriver can include a body, a motor that is configured to rotate a screw engaged with the screwdriver, and a processor configured to control operation of the screwdriver. The screwdriver can have torque-limiting functionality, such as by monitoring the amount of torque applied to the screw and reducing or stopping rotation of the screw when certain torque-limiting criteria are met. In some embodiments, the screwdriver can be switched between manual operation by a user, and automated operation by a motor within the screwdriver. In some embodiments, the screwdriver can be attached to a robotic arm.

A surgical tool for use in a system for removing bone from vertebrae to relieve stenosis is provided. In one embodiment, the surgical tool includes a drill bit having a proximal end and a distal end, a drive shaft having a proximal rod portion and a distal tubular portion, the drill bit and the drive shaft configured to rotate about a horizontal axis in a clockwise direction; and an engagement system disposed between the drill bit and the drive shaft; wherein the engagement system is configured to selectively engage the drill bit to the drive shaft for powered rotation when the drill bit contacts a first material at a first predetermined resistance and to disengage the drill bit from the drive shaft when the drill bit engages a second material at a second predetermined resistance; and wherein the first predetermined resistance is greater than the second predetermined resistance.

Milling device for prosthetic surgery comprising a milling tool and a handler body. The handler body is provided with a rotating drive shaft which develops along a longitudinal axis of rotation and is connected to the milling tool to rotate the milling tool around the longitudinal axis.

An orthopedic burring tool includes a burring tip configured for removal of bone to form a bore in the bone, an elongated intermediate segment having a smooth outer surface along a length of the segment, a conical widening segment at the proximal end of the intermediate segment that widens from the diameter of the burring tip to a diameter that is about twice the burring tip diameter. The widening segment includes an outer surface configured for removal of bone upon rotation of the burring tool. The tool includes an upper segment configured for engagement to a rotary driving tool and having a cylindrical outer surface configured for removal of bone upon rotation of the burring tool for removal of material from bony structure adjacent the bone bore formed by the burring tip.