Patent ID: 6187007
Filing Date: 2001-02-13
Classification: A61B,A61F

Abstract:
A device for internal fixation of a femoral head of a femur comprising:a) a body portion (1) havingi) a bone plate (2) configured and dimensioned for attachment to the femur with at least one hole (5) for securing the bone plate (2) to the femur with a fastener andii) a sleeve (3) connected at an angle to the bone plate (2) and having a bore (4); andb) an anchor screw (10) havingi) a shaft (11) configured and dimensioned for sliding axial movement within the bore (4) of the sleeve (3) andii) a threaded coaxial section (12) attached at an end of the shaft (11) for securing the anchor screw (10) in bone,wherein the threaded section (12) of the anchor screw (10) has multiple threads (13) and the shaft (11) of the anchor screw (10) has surface features (14) which engage corresponding surface features (4) of the sleeve (3) to prevent rotation between the body portion (1) and the anchor screw (10) while allowing axial movement between the two.