Abstract: A medical decoupling instrument for decoupling a medical insertion instrument from a pedicle screw includes a shaft and a sleeve arranged around a portion of the shaft. The sleeve is configured for defined coupling to the medical insertion instrument. The shaft is rotatable relative to the sleeve, and the medical decoupling instrument is configured to bring the shaft and the sleeve autonomously and automatically into a defined starting position. A medical arrangement includes at least the medical decoupling instrument and a medical insertion instrument.

Abstract: A medical decoupling instrument for decoupling a medical insertion instrument from a pedicle screw includes a shaft and a sleeve arranged around a portion of the shaft. The sleeve is configured for defined coupling to the medical insertion instrument. The shaft is rotatable relative to the sleeve, and the medical decoupling instrument is configured to bring the shaft and the sleeve autonomously and automatically into a defined starting position. A medical arrangement includes at least the medical decoupling instrument and a medical insertion instrument.

Abstract: A bone implant includes a shank for arrangement in a bone and a head arranged proximally on the shank and having a tool receiver for an implantation tool. The shank has a longitudinal axis. A continuous injection channel for injection of bone connection material is formed in the shank and has a proximal inlet opening for bone connection material on the side of the tool receiver. The wall of the shank surrounding the injection channel has a radial offset with respect to the longitudinal axis on the side of the proximal inlet opening. An implantation instrument for a bone implant includes an injection cannula having an inner channel having a longitudinal axis for injection of bone connection material. The inner channel has a distal outlet opening for bone connection material. A wall of the injection cannula surrounding the inner channel has a radial offset with respect to the longitudinal axis.

Abstract: A locking sleeve for receiving and locking the legs of a pedicle screw includes a stop ring provided on an inner side of a locking sleeve and resting on an upper edge of the legs, limiting the accommodation depth of the legs in the locking sleeve, and a plurality of groove blocks on the inner side of the locking sleeve which can be inserted between the legs of the pedicle screw for defining a fixed distance between the legs.

Abstract: A locking sleeve for receiving and locking the legs of a pedicle screw includes a stop ring provided on an inner side of a locking sleeve and resting on an upper edge of the legs, limiting the accommodation depth of the legs in the locking sleeve, and a plurality of groove blocks on the inner side of the locking sleeve which can be inserted between the legs of the pedicle screw for defining a fixed distance between the legs.