Abstract: An implant system for treating fractures of a curved bone structure is proposed which comprises the following: an implant body which is provided to be arranged on the bone structure and to be in contact with the latter at least in some regions, wherein the implant body has a rod-like longitudinal extent, wherein the implant body has at least one middle piece which, at both ends, has at least one respective holding piece, wherein the holding pieces are each designed to be flexurally and/or torsionally resistant in such a way as to allow the respective holding piece to rest substantially flat along a particular region of the bone structure assigned to it, and wherein the at least one middle piece is designed to be elastic in such a way that the at least two holding pieces are bendable relative to each other about at least one flexion or torsion axis.

Abstract: A cranial bone fastening device for temporarily fastening multiple cranial bone portions to a main body of a positioning device in order to orient the cranial bone portions relative to one another, wherein a pin-like fixing element portion is provided, one side of which is designed to contact the multiple cranial bone portions in order to secure the cranial bone portions to the main body of the positioning device upon interaction with a counter portion on the other side of the cranial bone portions.

Abstract: The invention relates to a cranial bone fastening device (1) for temporarily fastening a cranial bone portion or multiple cranial bone portions to a main body of a positioning device in order to orient the cranial bone portions relative to one another, wherein a pin-like fixing element portion (2) is provided, one side of which is designed to contact the cranial bone portion or multiple cranial bone portions in order to secure the cranial bone portion or cranial bone portions to the main body of the positioning device upon interaction with a counter portion (3) on the other side of the cranial bone portion or cranial bone portions.

Abstract: The invention relates to a positioning device (1) for cranial bone portions, for relative positioning of the cranial bone portions relative to each other and for obtaining a predefined overall shape and overall contour in order to achieve a target cranial shape, having a primary body (2) designed to bear the cranial bone portions, wherein the primary body (2) is produced based on individual patient data, which are specific for the patient to be treated, and supplemented by modified, anatomical data. The invention furthermore relates to a production method for producing such a positioning device (1), which is prepared to have cranial bone portions temporarily fastened to it, wherein in one manufacturing step, a primary body (2) of the positioning device (1) is produced, based on geometric data representative of the cranial bone geometry of the particular patient to be treated.