Apparatus and method for spinal fusion using implanted devices

Details Apparatus and method for spinal fusion using implanted devices Apparatus and method for spinal fusion using implanted devices

A - Human Necessities

61

F

A61F 2/44 (2006.01) A61B 17/16 (2006.01) A61B 17/17 (2006.01) A61F 2/28 (2006.01) A61F 2/46 (2006.01) A61B 17/02 (2006.01) A61B 17/064 (2006.01) A61B 17/92 (2006.01) A61B 19/00 (2006.01) A61F 2/00 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2331717

A spinal implant replaces excised tissue removed during spine surgery. This implant includes fasteners (36) which firmly attach it to vertebrae adjacent to excised tissue so as to transmit tension and torsional loads to and from those vertebrae. The body of the implant has through cavities (34) into which bone growth material is placed during surgery. The body of the implant also has a finite modulus of elasticity in compression so as to share compressive loads with emplaced bone growth material and with new bony growth facilitated by the emplaced material and the load sharing.

L'invention concerne un implant vertébral permettant de remplacer des tissus excisés retirés lors d'une intervention chirurgicale pratiquée sur le rachis. Cet implant comprend des attaches (36) qui permettant de le fixer fermement aux vertèbres adjacentes aux tissus excisés de manière à transmettre les efforts de tension et de torsion à ces vertèbres et à partir de celles-ci. Le corps de l'implant présente des cavités traversantes (34) dans lesquelles est placé un matériau favorisant la croissance osseuse lors de l'opération chirurgicale. Le corps de l'implant présente également un module fini d'élasticité en compression de manière que les charges de compression soient réparties entre ce module et le matériau favorisant la croissance osseuse mis en place, ledit matériau et la répartition des charges facilitant une nouvelle croissance osseuse.

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