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:
Dec. 25, 2007
Filed:
Feb. 26, 2004
Brian E. Dalton, Erie, PA (US);
Brian E. Dalton, Erie, PA (US);
Aesculap Implant Systems, Inc., Center Valley, PA (US);
Abstract
A bone fixation assembly includes a fixation device, a cup shaped bushing, and a fastening screw. The fixation device has a through passage with an annular recess. The a fastening screw has a threaded shaft for insertion through the through passage and for threadable insertion into bone. The screw has a head with substantially frustospherical shaped side surfaces and mates with the cup shaped bushing. The annular recess in the through passage of the fixation device is configured and dimensioned to downwardly, directly, and annularly receive an upper end of the bushing under compression with a snap fit to prevent the screw from backing out of the bone fixation assembly.