Abstract: An assembly may include a medical device, an introducer sheath connected to the medical device, and a surgical instrument. The medical device may include a cage, a screw, a bone screw, a pedicle screw, and/or an implant. The introducer sheath may be connected to the medical device at a pre-determined breaking point. The introducer sheath may be hollow. The surgical instrument may comprise an extension. The extension may be configured to be inserted into the introducer sheath. The surgical instrument may comprise a pin. The surgical instrument may comprise a separator. The separator may be configured for breaking off the introducer sheath from the medical device at the pre-determined breaking point by rotating the extension about a longitudinal axis of the extension. A part of the medical device may be configured serve as a counter bearing to the rotation by accommodating the pin during rotation.

Abstract: A surgical instrument for separating an introducer sheath from a device connected to the introducer sheath is disclosed. In embodiments, the surgical instrument includes an extension extending in a longitudinal direction; a pin; and a separator connecting the extension and the pin.

Abstract: A surgical instrument includes an implant, a grip, and a pre-set breaking point connecting the implant and the grip. The implant has a joining profile.

Abstract: An intervertebral implant (1, 30, 45, 52) with a non-movable bottom plate, a movable bottom plate (2, 31, 46, 54) and a movable top plate (3, 32, 47, 55).

Abstract: A surgical instrument includes an implant, a grip, and a pre-set breaking point connecting the implant and the grip. The implant has a joining profile.

Abstract: The invention relates to a surgical instrument comprising a bone screw (1) having a screw head (5), and a shaft (2) for rotating the bone screw in a bone, the shaft and/or head forming a single element with the bone screw and having a predetermined breaking point (4). A driving element is inserted into the bone screw by the shaft, said driving element screwing the screw further in or out once the shaft has broken off from the screw.