发明授权
US5141512A Alignment of hip joint sockets in hip joint replacement 失效
髋关节置换髋关节置换对齐

Alignment of hip joint sockets in hip joint replacement
摘要:
An apparatus for aligning an acetabular cup for proper placement in a socket in hip joint replacement includes a frame having feet which are placed against and fastened to the anterior superior iliac spines and the pubic tubercles respectively of the pelvis. A light beam is directed from a source through an aperture to a mirror mounted on an implant inserter. The light beam is reflected back from the mirror to a target region. When the incident and reflected beams are coincident, the cup is aligned for correct placement. The target region is rotatably and pivotably mounted for precise adjustment of the angles of abduction and anteversion respectively.
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