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. 22, 2011
Filed:
Oct. 26, 2005
Lawrence Mosca, Marquette, MI (US);
Matthew Peter Gephart, Marquette, MI (US);
Brian Janowski, Marquette, MI (US);
Brad Fredin, Ishpeming, MI (US);
Francis Korhonen, Negaunee, MI (US);
Matthew N. Songer, Marquette, MI (US);
Lawrence Mosca, Marquette, MI (US);
Matthew Peter Gephart, Marquette, MI (US);
Brian Janowski, Marquette, MI (US);
Brad Fredin, Ishpeming, MI (US);
Francis Korhonen, Negaunee, MI (US);
Matthew N. Songer, Marquette, MI (US);
Pioneer Surgical Technology, Inc., Marquette, MI (US);
Abstract
Bone plate systems and retainers are provided for surgical implants and bone repair. The bone plate is multi-tiered for receiving bone anchors or screws for securing multiple bones or bone fragments in a desired relationship. The plate includes bores for receiving the screws, and the bores may permit and define a translation path for the screws relative to the plate. The retainers are held in a recess in the bores to prevent screw back-out. Once the screw is seated with the plate, the retainer rests over a top surface of the screw to impede screw back-out from the plate. The retainer may expand to permit driving a screw therethrough and may contract once the screw is seated within the plate so the retainer is in a configuration for preventing back-out. Tools and methods are also provided for implantation and removal of the plates and the screws.