SHANDONG HANGWEI ORTHOPEDICS MEDICAL INSTRUMENT CO.; LTD.
发明人:
SUN, DEXIU
申请号：
CNCN2011/082920
公开号：
WO2012/126253A1
申请日:
2011.11.25
申请国别(地区):
WO
年份:
2012
代理人:
摘要：
Disclosed is a positioning device specifically for drilling femur neck, comprising a main body (1) a drill bushing (2) mounted inside a central through-hole of the main body (1) in a slidable manner a bended first positioning pin (3) and a bended second positioning pin (4), wherein the tip of the first positioning pin (3) is bended downwards, and is located right above the extension line of the central through-hole axis, and its distance from the extension line of the axis is half of the anteroposterior diameter of the femur neck and the plane where the second positioning pin (4) is located is parallel or perpendicular to the plane where the first positioning pin (3) is located, and the second positioning pin (4) is longer than the first positioning pin (3), and the tip of the second positioning pin (4) is lower than the tip of the first positioning pin (3). When the plane where the second positioning pin (4) is located is parallel to the plane where the first positioning pin (3) is located, the distance between the tip of the first positioning pin (3) and the second positioning pin (4) equals the radius of superoinferior diameter of the femur neck. When the plane where the second positioning pin (4) is located is perpendicular to the plane where the first positioning pin (3) is located, the distance between the tip of the first positioning pin (3) and the second positioning pin (4) equals the radius of the anteroposterior diameter of the femur neck. Application of the positioning device of the present invention specifically for drilling femur neck can ensure positioning accuracy, and ensure successful drilling in just one step, and can prevent drilling deviation or failure.Linvention concerne un dispositif de positionnement spécifiquement pour le forage du col du fémur, comprenant un corps principal (1) un canon de forage (2) monté à lintérieur dun trou traversant central du corps principal (1) dune manière coulissante une première broche de positionnement (3) rec
