A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
3/101
A61B 17/58 (2006.01) A61F 2/44 (2006.01)
Patent
CA 1292596
ABSTRACT OF THE DISCLOSURE Prosthesis plug implants forming struts between adjacent vertebrae have roughened surfaces receiving bone ingrowth to fuse the plugs on prepared surface sites on opposed faces of adjacent vertebrae and have end faces with tool receiving recesses securing the plug on a tool for insertion on the prepared sites of the vertebrae and for removing the tool from the plug without disturbing its position on the sites. These sites are prepared by feeding a drill through a guide fixed to posterior or anterior sides of adjacent vertebrae to form channels including cortex bone in the opposed faces of the adjacent vertebrae and terminating the drilling in advance of the opposite sides of the vertebrae. The plug implants are threaded on the end of the tool surrounded by a sleeve and are inserted in exact position on the prepared sites. The sleeve is then pushed into a recess in the end of the plug and firmly held while the tool is unthreaded from the plug to prevent disturbing the exact position of the plug on the prepared sites.
576859
Cassan Maclean
Depuy Acromed Inc.
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