Paul A. Martineau,Louis-Philippe Lefebvre,Edward J. Harvey
申请号：
US14623280
公开号：
US09216045B2
申请日:
2015.02.16
申请国别(地区):
US
年份:
2015
代理人:
摘要：
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.
