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Jerald A Bowman, Richard V Zile: Cannulated self-tapping bone screw. Boehringer Mannheim Corporation, Barnes & Thornburg, August 21, 1990: US04950270 (436 worldwide citation)

A fluted and cannulated self-tapping bone screw which can be guided into proper position using a guide pin that slidably fits in the cannula of the bone screw. The flutes have cutting edges centered on axial centerline of the cannula.


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Jerald A Bowman, Larry G McCleary: Tibial cutting guide. Boehringer Mannheim Corporation, Barnes & Thornburg, August 28, 1990: US04952213 (346 worldwide citation)

An apparatus for placing a bone cutting saw cutting guide adjacent a proximal surface of a human tibia bone having an elongated rod inserted into the tibia for clampingly supporting a rotating bar on the central longitudinal axis of the tibia bone. The bar being extended from the rod and connected t ...


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