A modular polyaxial locking pedicle screw

A - Human Necessities – 61 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61B 17/70 (2006.01)

Patent

CA 2268152

A modular polyaxial pedicle screw and orthopedic rod implant dev ice includes a shaft portion (100, 300), a cuff (130, 350), a stem portion (120, 320), and a rod coupling sub-assembly (160, 360). The shaft portion (100, 300) is designed to be inserted into the pedicle, and in alternative embodiments includes a recess (108) and a convex semi-spherical bubble (308). In both embodiments, the shaft (100, 300) also includes a threading (110, 310) formed on the exterior surface. The stem portion (120, 320) is a threaded post and either an enlarged ball (124) or a recessed socket (324). The cuff (130, 350) is a cylindrical element that seats around the interface of the ball and socket combination initially so that the stem (120, 320) and shaft (100, 300) may polyaxially rotat e and subsequently hold the stem and shaft in final securement.

La présente invention concerne une vis pédiculaire modulaire polyaxiale et un appareil orthopédique à tige d'implant incluant un segment d'axe (100, 300), une couronne (130, 350), un segment en tige (120, 320), un sous-ensemble de couplage de tiges (160, 360). Le segment d'axe (100, 300) est conçu pour être inséré dans le pédicule et selon des réalisations possibles, comporte un évidement (108) et un bulbe hémisphérique convexe (308). Selon les deux réalisations, la face extérieure du segment d'axe (100, 300) comporte un filetage (110, 310). Le segment en tige (120, 320) est fileté et comporte soit un renflement sphérique (124) soit un culot évidé (324). La couronne (130, 350) est un élément cylindrique conçu pour être initialement posé autour de l'interface de la combinaison renflement sphérique-culot, de sorte que la tige (120, 320) et l'axe (100, 300) peuvent pivoter, de manière polyaxiale, l'un par rapport à l'autre, et par la suite maintenir la tige et l'axe définitivement fixés.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

A modular polyaxial locking pedicle screw does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A modular polyaxial locking pedicle screw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A modular polyaxial locking pedicle screw will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1776862

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.