Abstract: A rod-shaped implant for stabilizing bone structures, in particular the spinal column includes a rod-shaped implant having a rod-shaped member with a first end and a second and a longitudinal axis. The rod-shaped member is at least partly made from a plastic material exhibiting flexibility and includes a longitudinal bore. A reinforcing rod is accommodated in the bore and is made from a material which is more rigid than the material of the rod-shaped member itself. The reinforcing rod is slidable in the bore.

Abstract: A rod-shaped element for use in spinal or trauma surgery, having a first section for connecting to a first bone anchoring element and a second section for connecting to a second bone anchoring element is described. The rod-shaped element also includes a first elastic flexible element that is capable of elastic deformation when a force acts on it transverse to the rod axis. The first section and the second section are capable of shifting relative to each other in the direction of the rod axis. In a stabilization device for use in spinal or trauma surgery, the rod-shaped element allows for a controlled motion of the parts to be stabilized relative to each other so flexural motion is adjusted separately from the adjustment of the mobility in axial direction.

Abstract: A rod-shaped element for use in spinal or trauma surgery, having a first section for connecting to a first bone anchoring element and a second section for connecting to a second bone anchoring element is described. The rod-shaped element also includes a first elastic flexible element that is capable of elastic deformation when a force acts on it transverse to the rod axis. The first section and the second section are capable of shifting relative to each other in the direction of the rod axis. In a stabilization device for use in spinal or trauma surgery, the rod-shaped element allows for a controlled motion of the parts to be stabilized relative to each other so flexural motion is adjusted separately from the adjustment of the mobility in axial direction.

Abstract: A flexible stabilization device for dynamic stabilization of bones or vertebrae is provided comprising a rod construct including a rod made of an elastomeric material the rod having a first connection section, a second connection section and a third section therebetween, the first and second connection sections being connectable with a bone anchoring device, respectively, and a sleeve provided on at least a portion of the third section of the rod such that at least the first and second connection sections are exposed.

Abstract: A bone anchoring assembly for use in spinal surgery or trauma surgery includes an anchoring element having a shaft and a receiving part having a substantially U-shaped cross-section with a base connected to said shaft and two free legs forming a channel for receiving a rod having an at least partially structured surface. The bone anchoring assembly further includes a locking member cooperating with the receiving part for locking said rod in the channel. At least on the locking member or in the receiving part an engagement portion for engaging said structured surface of the rod is provided. The locking member, the rod and the receiving part cooperate in such a manner that as soon as the engagement portion comes into engagement with the structured surface the rod is held in the receiving part in a form-locking manner preventing movement of the rod.

Abstract: A dynamic stabilization device for bones or vertebrae is provided which includes at least two bone anchoring elements, at least one connection element, connecting the bone anchoring elements. Each bone anchoring element includes a shank portion to be anchored in the bone or in the vertebra and a head portion to be connected with the connection element. The connection element is at least partly elastic and has at least one loop section. The head portion includes a recess with an opening for inserting the loop section. A securing element is provided for securing the loop section in the recess. The connection element is preferably in the form of an endless loop made of an elastomeric material.

Abstract: A placeholder for vertebrae or vertebral discs includes a tubular body, which along its jacket surface has a plurality of breakthroughs or openings for over-growth with adjacent tissue. The placeholder includes at least a second tubular body provided with a plurality of breakthroughs and openings at least partially inside the first tubular body. The first and second tubular bodies can have different cross-sectional shapes, can be are arranged inside one another by press fit or force fit or can be connected to each other via connecting pins and arranged side by side to one another in the first body.

Abstract: An element with a thread is created, in which both partial flanks enclose a negative angle with a plane extending perpendicular to the screw axis. Further, a screw or a hook for connecting to a rod, as used in particular in spinal column surgery, is created, wherein the inner thread of a holder, to which the rod is connected, and the associated thread of a nut comprise the thread according to the invention.

Abstract: A tubular spacer and a method for the manufacture of the spacer is described. The tubular spacer has a first rim on a first end, a second rim on its opposite second end, and a jacket extending between said first and said second rims. The jacket has a tapered section adjacent to at least one end. The spacer is suitable for use in tubular bone surgery where it is necessary that the spacer adapts to different bone cross-sections. To make this tubular spacer, a cylinder having a tubular jacket body is expanded and/or narrowed at one or both of its ends. Methods for using the spacer as well as kits for making the spacers are described.

Abstract: An element with a thread is created, in which both partial flanks enclose a negative angle with a plane extending perpendicular to the screw axis. Further, a screw or a hook for connecting to a rod, as used in particular in spinal column surgery, is created, wherein the inner thread of a holder, to which the rod is connected, and the associated thread of a nut comprise the thread according to the invention.

Abstract: A rod-shaped element for use in spinal or trauma surgery, having a first section for connecting to a first bone anchoring element and a second section for connecting to a second bone anchoring element is described. The rod-shaped element also includes a first elastic flexible element that is capable of elastic deformation when a force acts on it transverse to the rod axis. The first section and the second section are capable of shifting relative to each other in the direction of the rod axis. In a stabilization device for use in spinal or trauma surgery, the rod-shaped element allows for a controlled motion of the parts to be stabilized relative to each other so flexural motion is adjusted separately from the adjustment of the mobility in axial direction.

Abstract: A bone anchoring element comprising a shaft (2) for anchoring in a bone, with a plurality of barb elements (7) arranged in at least one helical line around the shaft axis (M) is described, wherein said barb elements are elastically movable relative to the shaft. The bone anchoring element (1) is easy to press into a core hole bore in a bone. The barb elements (7) act in a similar manner as do the threads on a conventional bone screw and thus provide for depth positioning. Moreover, the barb elements at the same time secure the bone anchoring element and prevent it from sliding-out.

Abstract: The invention relates to an anchoring element comprising a screw (12) having a shank (13) with a bone thread portion and a head (14; 140), and comprising a receiving part (1) for connecting the screw to a rod-shaped element (40), the screw and the receiving part being connected to one another in a polyaxial or monoaxial manner, and the shank (13) of the screw being of tubular design and its wall having a plurality of recesses (18). In this way it is possible for the bone screw to fuse with the surrounding bone substance, and at the same time bone portions or vertebrae can be positioned relative to one another and fixed. Moreover, a substance to be introduced into the bone can be introduced precisely at the desired site.

Abstract: A dynamic anchoring device is described. An element with a shank for anchoring in a bone or a vertebra and with a head connected to the shank is provided with a receiving part for the head and with an elastomeric pressure element acting on the head. The pressure element is formed and located in such a way that, upon a movement of the element from a first angular position of the shank relative to the receiving part into a second angular position, it exerts a return force on the head. Further, a dynamic stabilization device, in particular for vertebrae, is provided. In such a stabilization device, a rod is connected two anchoring devices. At least one of the anchoring devices is constructed as dynamic anchoring element.

Abstract: A bone anchoring element (1) for anchoring an external device in a bone is described. A head (2) capable of connection to the external device is provided with a shaft (3) that can be anchored in a bone. A predetermined section of the shaft (3) has a bone thread (5). Moreover, the shaft (3) also has at least one bone thread-free surface (6,7; 11,12; 16,17; 21,22,23) that extends from a first end to a second end of the predetermined section essentially along the direction of the shaft axis. The bone anchoring element (1), thus provided, is pressed or soft-hammered into a hole (8, 28) previously generated in the bone and fixed in the bone by rotation by a predetermined angle. If the bone anchoring element has to be removed this can be achieved by unscrewing it in the standard fashion. The disclosure also describes methods for using the bone anchoring element.

Abstract: A spacer assembly is provided for use in spinal surgeries. The spacer assembly includes a spacer having opposite ends and a side wall extending between the opposite ends and at least one end cap coupled to at least one of the opposite ends of the spacer. Each end cap includes an inner end facing the spacer, an outer end having a serrated surface, and a side wall extending between the inner and outer ends. The side wall of each end cap is formed for engagement with the side wall of the spacer to provide a mechanical connection between the end cap and the spacer.

Abstract: A tubular spacer and a method for the manufacture of it is described. The tubular spacer has a first rim on its first end, a second rim on its opposite second end and a tapered section adjacent to at least one end. The spacer is suitable for use in tubular bone surgery where it is required that the spacer adapt to different bone cross-sections. Thus, in making the spacer, a circular cylinder having a tubular jacket body is expanded and/or narrowed at one or both of its ends. Methods for usiong the spacers and kits for making the spacers also are disclosed.

Abstract: An element with a thread is created, in which both partial flanks enclose a negative angle with a plane extending perpendicular to the screw axis. Further, a screw or a hook for connecting to a rod, as used in particular in spinal column surgery, is created, wherein the inner thread of a holder, to which the rod is connected, and the associated thread of a nut comprise the thread according to the invention.