The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1999
Filed:
Jun. 09, 1998
Robert S Bray, Jr, Agoura, CA (US);
Other;
Abstract
An anterior fixation device comprises an oval shaped intervertebral spacer and a retaining plate. The spacer has a side wall and superior and inferior walls. The superior and inferior walls are dome-shaped and porous to allow bone to grow through the device to achieve fusion of two adjacent vertebral bodies. Extending from the anterior side of the spacer are superior and inferior lips through which bone screws 16 extend. The bone screws are non-weight bearing and screw into the strongest areas of bone within the vertebral bodies. The intervertebral spacer is hollow inside to allow for bone grafts, bone morphogenic protein, or other bone stimulating substances to be inserted therein. The retaining plate is attachable to the anterior surface of the spacer to prevent the bone screws from backing out once the device is installed.