Bone screw
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 8, 1989
Issued Date -
N/A
app pub date -
Jan 21, 1988
filing date -
Jan 9, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bone screw for use with a connecting member for connecting a bone portion with the connecting member. The bone screw includes an elongate shank having a longitudinal central axis. A first externally threaded portion receives a nut for attaching the connecting member to the bone screw. A second externally threaded portion engages a surface defining an opening in the bone portion to attach the bone screw to the bone portion. A cylindrical body portion is located on the shank intermediate the first and second externally threaded portions. The body portion engages a portion of the surface defining the opening in the bone portion to restrict movement of the bone screw relative to the bone portion in a direction transverse to the longitudinal cental axis of the shank. The body portion blocks effluent from the opening in the one bone portion. A seat portion having a surface located on the body portion adjacent the first externally threaded portion engages the connecting member to establish the axial location of the connecting member along the bone screw.
First Claim
Family
International Classification(s)
Cited Art Landscape
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