A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/70 (2006.01)
Patent
CA 2206415
This rod comprises a first cylindrical part, being a lumbosacral part (6), which is rigid in all directions, a second part, being a dorsal part (7), which is rigid in a frontal plane, in order to prevent scoliosis, and flexible in a sagittal plane, and a dorsolumbar transition zone (8) connecting the lumbar and dorsal parts and profiled in a progressive manner so that its thickness in the sagittal plane diminishes progressively and its width in the frontal plane increases progressively: this profile is such that the second moment of area of the transition zone remains substantially constant over its entire length. The profile, thus defined, of the transition zone has the aim of avoiding, to a great extent, the risks of breaking due to the fatigue in this zone, resulting from the various movements of the patient in a chair, in particular the flexion/extension movements in a sagittal plane, promoted by the rectangular profile of the dorsal part of the rod.
Cette tige comporte une première partie cylindrique appelée partie lobosacrée (6) qui est rigide dans tous les sens, une seconde partie appelée partie dorsale (7) qui est rigide dans le plan frontal de manière à empêcher la scoliose et souple dans le plan sagittal, et une zone de transition dorso-lombaire (8) reliant les parties lombaire et dorsale et profilée de manière progressive de sorte que son épaisseur dans le plan sagittal diminue progressivement et que sa largeur dans le plan frontal augmente progressivement. Ce profil est conçu de sorte que le moment d'inertie de la zone de transition reste sensiblement constant sur toute sa longueur. Le profil ainsi défini de la zone de transition permet d'éviter, en grande partie, les risques de rupture dus à la fatigue dans cette zone, résultant de divers mouvements du patient dans une chaise, en particulier de mouvements de flexion/extension dans un plan sagittal, grâce au profil rectangulaire de la partie dorsale de la tige.
Gayet Louis Etienne
Rideau Yves
Smart & Biggar
Sofamor S.n.c
LandOfFree
Vertebral instrumentation rod does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vertebral instrumentation rod, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertebral instrumentation rod will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1673972