Artificial vertebral disk replacement implant with crossbar spacer and method
AssigneeKyphon SARL
InventorSteve Mitchell
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a device that can be placed between two vertebrae. The implant is characterized by having a first plate and a second plate with a crossbar therebetween. The crossbar fits within cavities on each of the first and second plates and allows for pivotal or rotational motion and also for twisting motion.
Claims51
A method of replacing a disk with an implant between an upper and lower vertebral body in a spine, the method comprising the steps of:
- a. preparing the upper and lower vertebral bodies to receive an implant;
- and
- b. inserting an implant between the upper and lower vertebral body, the implant having:
- an upper implant member;
- a lower implant member;
- and
- a crossbar member therebetween shaped as two bars crossing each other, wherein at least the upper implant and the lower implant members are movable about the crossbar member to allow twisting of said members.
A method of replacing a disk with an implant between an upper and lower vertebral body in a spine, the method comprising:
- a. preparing the upper and lower vertebral bodies to receive an implant;
- b. mating an upper implant member of the implant with the upper vertebral body;
- and
- c. mating a lower implant member of the implant with the lower vertebral body, wherein the implant includes a crossbar member between the upper implant member and the lower implant member, the crossbar member being shaped as two bars crossing each other, wherein at least the upper implant and the lower implant members are movable about the crossbar member to allow twisting of said members.
A method of implanting a device between an upper vertebral body and a lower vertebral body in a spine, the method comprising:
- a. accessing an affected region along the sagittal plane of the spine;
- b. preparing the affected region to receive a replacement device;
- C. providing an implant having a crossbar member positioned between an upper implant member and a lower implant member, the crossbar member being shaped as two bars crossing each other, wherein at least the upper implant and the lower implant members are movable about the crossbar member to allow twisting of said members;
- and
- d. inserting the implant into the affected region parallel to the sagittal plane.
A method of implanting a device between an upper and lower vertebral body in a spine, the method comprising:
- a. exposing an affected region of the spine anteriorly;
- b. removing an affected disk;
- c. cutting a keel receiving channel into the upper and lower vertebral body using a keel cutting tool;
- d. providing an implant having a crossbar member between an upper implant member and a lower implant member, the crossbar member being shaped as two bars crossing each other, wherein at least the upper implant and the lower implant members are movable about the crossbar member to allow twisting of said members;
- and
- e. inserting the implant between the vertebral bodies.
A method of implanting a device between an upper and lower vertebral body in a spine, the method comprising:
- a. exposing an affected region of the spine posteriorly;
- b. removing an affected disk;
- c. cutting a keel receiving channel into the upper and lower vertebral body using a keel cutting tool;
- d. providing an implant having a crossbar member between an upper implant member and a lower implant member, the crossbar member being shaped as two bars crossing each other, wherein at least the upper implant and the lower implant members are movable about the crossbar member to allow twisting of said members;
- and
- e. inserting the implant between the upper and lower vertebral bodies.
A method of implanting a device between an upper and lower vertebral body in a spine, the method comprising:
- a. removing an affected disk;
- b. forming a first receiving channel into the upper vertebral body parallel to the sagittal plane;
- c. forming a second receiving channel into the lower vertebral body parallel to the sagittal plane;
- d. providing an implant having a crossbar member between an upper implant member and a lower implant member, the crossbar member being shaped as two bars crossing each other, wherein at least the upper implant and the lower implant members are movable about the crossbar member to allow twisting of said members;
- and
- e. inserting the implant between the upper and lower vertebral bodies, wherein portions of the implant are received in the first and second receiving channels.
A method of implanting a device between an upper and a lower vertebral body in a spine, the method comprising:
- a. removing an affected disk between the upper and lower vertebral body;
- b. cutting a keel receiving channel into the upper and lower vertebral bodies, wherein the keel receiving channels are parallel to the sagittal plane of the spine;
- c. selecting an implant having a crossbar member between an upper implant member and a lower implant member, the crossbar member being shaped as two bars crossing each other, wherein at least the upper implant and the lower implant members are movable about the crossbar member to allow twisting of said members, the upper and lower implants having a keel;
- and
- d. inserting the keels of the replacement device into the keel receiving channels.
Dependencies are inferred from the claim text.