Patent ID: 9220609
Filing Date: 2015-12-29
Classification: A61B,A61F

Abstract:
1. A spine stabilization device, comprising: an interbody spacer shaped to be inserted between a vertebral body of an upper vertebra and a vertebral body of a lower vertebra, and comprising a top surface oriented towards a lower endplate of the vertebral body of the upper vertebra and a bottom surface oriented towards an upper endplate of the vertebral body of the lower vertebra; and a fixation device, the fixation device comprising a support portion securing the interbody spacer against escaping from between the vertebral bodies of the upper and lower vertebra in a direction towards the fixation device, the support portion shaped to rest against a portion of a surface of the interbody spacer, the support portion comprising a plurality of fastener receiving openings; and the fixation device further comprising a plurality of fasteners, the fasteners each comprising a tube element extending along a proximodistal axis and defining a cavity open towards a proximal side and at least one tube element opening where the cavity opens towards a bone side, and an anchoring material arranged in the cavity or shaped to be inserted into the cavity from the proximal side, wherein each fastener tube element is shaped to be inserted into one of the fastener receiving openings by non-rotational movement, the anchoring material configured to be introduced, in a liquid state, at least partially through the at least one tube element opening into bone tissue of at least one of the vertebral body of the upper vertebra and of the vertebral body of the lower vertebra, to thereby infiltrate the bone tissue, and to harden thereafter so as to fix the tube element to the vertebral body, wherein the tube element comprises the at least one opening in a central region with respect to axial directions, and further comprises, distally of the at least one opening, a substantial region without openings, wherein the at least one opening is positioned to be immediately underneath a cortical bone in an implanted state of the spine stabilization device, the tube element further comprising a collar having a largest diameter greater than adjacent portions of the tube element, the collar cooperating with the support portion in a positive fit manner for securing the support portion from escaping towards proximal directions.