HARTDEGEN, VERNON R.,TUTTLE, DAVID R.,GREEN, JOHN M. II
申请号：
ES10763550
公开号：
ES2491098T3
申请日:
2010.09.28
申请国别(地区):
ES
年份:
2014
代理人:
摘要：
An orthopedic prosthesis (10) comprising: a stem (5)； a tibial base (1) coupled to one end of the stem, the tibial base (1) comprising: an upper surface (17), a medial face (13), a lateral face (14), an anterior face (16), a posterior face (15), a peripheral edge (18) that includes an anterior portion and a posterior portion, the medial face (13) and the lateral face (14) being defined by a median mid-lateral line (40) and being defined the front face and the rear face by an antero-posterior midline (47), a first blocking structure that includes first and second projections (20, 30), the first projection (20) projecting upward from the upper surface ( 17) of the tibial base 10 (11) to define a first undercut structure (23) arranged along the posterior portion of the peripheral edge (18) projecting the second shoulder (30) upward from the upper surface (17) of the tibial base (11) to define a second undercut structure arranged at argo of the anterior portion of the peripheral edge (18), the first and second locking structures being configured to fit together and block the tibial insert (70) with the tibial base (11) when the tibial insert (70) is fully seated within the tibial base (11) and, characterized in that the orthopedic prosthesis comprises: a guide member (25) extending from the first shoulder (20) along a vector of the fitting direction (45)； and a tibial insert (70) comprising a medial support surface, a lateral support surface, a lower surface, and a second locking surface disposed on the lower surface, in which the guide member (25) is configured to guide the tibial insert (70) along the lace direction vector (45) when the tibial insert (70) is inserted into the tibial base (11) toward the back face, and the direction of the lace vector ( 45) is inclined with respect to the median mid-lateral line (40) of the tibial base (11) towards the medial face (13) of the tibial base (11) at a predetermined angle.Una prótesis ortopédica (10) que comprende: un vásta
