A wire cutter suitable for creating a cavity in cancellous bone includes a restrainer and a cutting wire, wherein a portion of the cutting wire will protrude from a slot formed on the restrainer to the outside of the restrainer and inside a bone, when the cutting wire is advanced in a tunnel formed in the restrainer and toward a closed end of the tunnel.

The invention relates to a surgical tool and method for forming a pilot bore by inserting a guide wire into bone. The surgical tool is also constructed to insert a bone screw that is preloaded onto the surgical tool with a guide wire extending along the longitudinal axis of the bone screw. This construction allows the guide wire and the bone screw to be located and placed without removing the tool from the surgical site. More particularly, the device includes a cannulated hand grip and driving tool used for the rotation of a pedicle screw into bone. The rear portion of the hand grip includes a slide assembly that is suited to grip a guide wire. The slide assembly includes a T-handle to control the sliding movement of the guide wire. The rear surface of the slide is constructed to be impacted with a hammer or similar device.

Instruments and methods for surgical transosseous attachment to a bone include a guide able to guide the formation of intersecting bone tunnels and a passer able to pass a member through the bone tunnels.

A device for drilling into bone includes a luer portion having a luer thread. A bit portion is rigidly coupled to the luer portion, the bit portion configured to be detachably coupled to a bit driver. An adapter portion is rigidly coupled to the bit portion. A drilling portion is rigidly coupled to the adapter portion, the drilling portion comprising a flute configured to create a hole in the bone. A channel extends through the luer portion, the bit portion, the adapter portion, and the drilling portion.

A fracture treatment system can include a pair of implants cross-pinned into the medullary canal of a bone, guided by at least one guide wire with at least two diameters. The system allows for more accurate sizing of the length of implants needed to achieve bicortical purchase for enhanced stability, as well as anti-rotation of the fracture site. The more accurate sizing and placement of the cross-pinned implants additionally allow both ends of the implants to recess beneath or be flush with the outer surface of the bone, which can reduce the risk of infection. The guide wire can allow the implants to be inserted using a cannulated technique for easier surgical procedure and better outcome, with the implants having sufficient wall thickness for the desired length to achieve bicortical purchase while keeping the shaft outer diameter of the implant to be similar to a diameter of the guide wire.

The invention relates to a surgical tool and method for forming a pilot bore by inserting a guide wire into bone. The surgical tool is also constructed to insert a bone screw that is preloaded onto the surgical tool with a guide wire extending along the longitudinal axis of the bone screw. This construction allows the guide wire and the bone screw to be located and placed without removing the tool from the surgical site. More particularly, the device includes a cannulated hand grip and driving tool used for the rotation of a pedicle screw into bone. The rear portion of the hand grip includes a slide assembly that is suited to grip a guide wire. The slide assembly includes a T-handle to control the sliding movement of the guide wire. The rear surface of the slide is constructed to be impacted with a hammer or similar device.

Milling device for prosthetic surgery comprising a milling tool rotating about a milling axis, and a handling body. The handling body is provided with a drive rotating rod which develops along a longitudinal axis of linear rotation and is connected to the milling tool in order to make the milling tool rotate about the milling axis.

An orthopedic pin is for optically analyzing a bone region. An optical fiber arrangement extends within an elongate shaft from a distal end to a proximal end. There is a coupling at an intermediate position along the shaft, and the optical fiber arrangement comprises a first portion on one side of the coupling and a second portion on the other side of the coupling. The coupling allows relative rotation between portions of the shaft at opposite sides of the coupling, while maintaining optical coupling between the first and second portions of the optical fiber.

An engagement mechanism for a driver instrument (24) can comprise a mobile shaft (121, 221), a collet (122, 222) and an angled engagement interface (124; 136A-D). The mobile shaft comprises a first shaft portion (128, 228) located at a proximal end of ON the mobile shaft, a driver portion (126, 226) located at a distal end of the mobile shaft, and an internal passageway (180, 280) extending from the proximal end to the distal end. The collet comprises a second shaft portion (134, 234) disposed within the passageway at co the first shaft portion, and flexible arms (132A-D, 232A-D) extending from the second shaft portion within the driver portion. The angled engagement interface is positioned between the driver portion and the flexible arms, and is configured to permit the driver portion to push or deflect the flexible arms radially inward when the first shaft portion is slid along the second shaft portion. The angled engagement interface can include bearings (224A-D) and a frusto-conical contact surface (124; 282A-D).

Described herein are methods and devices useful for reaming and shaping the surfaces of a joint in a mammalian body. The reaming and shaping devices and methods are particularly useful in preparation of a joint for a minimally invasive joint replacement or resurfacing, though they may be used as part of any appropriate arthroplasty procedure.