SPINAL BONE FASTENER ASSEMBLY

SPINAL BONE FASTENER ASSEMBLY

A spinal bone fastener assembly (1) to be engaged to a posterior spinal bone fastener system comprises a bone fastener (10), a rod receiving head (30), configured to receive a spinal rod (2), a tightening means (60, 70) configured to exert a retaining and/or clamping force between the spinal rod and...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KOLLER, Heiko, OVERES, Tom
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Beschreibung
Zusammenfassung:A spinal bone fastener assembly (1) to be engaged to a posterior spinal bone fastener system comprises a bone fastener (10), a rod receiving head (30), configured to receive a spinal rod (2), a tightening means (60, 70) configured to exert a retaining and/or clamping force between the spinal rod and the rod receiving head, a tether (80) connecting or coupling the rod receiving head (30) with the bone fastener (10). When the bone fastener (10) is introduced into the spine, a spinal rod (2) is positioned in a central pocket (41) of the rod receiving head (30) and a rod tightening means (60; 70) tightens against the spinal rod (2) in the central pocket (41) blocking the position of the tether (80) in the tether retaining means (36) of the rod receiving head (30) at a predetermined distance (X2).