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. 22, 2015
Filed:
Feb. 16, 2015
The Royal Institution for the Advancement of Learning / Mcgill University, Montreal, CA;
National Research Council of Canada, Ottawa, CA;
Paul A. Martineau, Westmount, CA;
Louis-Philippe Lefebvre, Boucherville, CA;
Edward J. Harvey, Westmount, CA;
The Royal Institution for the Advancement of Learning/McGill University, Montreal, Quebec, CA;
National Research Council of Canada, Ottawa, Ontario, CA;
Abstract
A bone screw and method of producing the same is described. The method of producing a bone screw includes forming a one-piece headless screw body out of a rigid metallic foam that is entirely porous throughout and defines a plurality of inter-connected pores having a size of about 30 to about 500 microns in diameter. The method includes providing at least one thread on an external surface of the screw body, and forming a bore extending through an entire axial length of the screw body, the bore forming a cannula that defines an annular radial wall thickness of the screw body. The method further includes disposing the inter-connected pores throughout the radial wall thickness of the screw body such as to allow for bone in-growth through the full radial wall thickness and into the cannula.