发明名称 |
METHODS AND DEVICES FOR PATIENT-SPECIFIC ACETABULAR COMPONENT ALIGNMENT IN TOTAL HIP ARTHROPLASTY |
摘要 |
An acetabular component alignment device for total hip arthroplasty comprises a calibration component (9) allowing for aligning a main instrument axis (5) of the acetabular component depending on a set of two patient specific calibration parameters relating to rotational offsets of the acetabular component, whereas the device is constructed in such a way that calibration parameters may be chosen such that a second parameter of the set of calibration parameters is adjustable independently from a first parameter of the set of calibration parameters by rotating the acetabular component around the main instrument axis (5) of the acetabular component. A method for obtaining patient specific calibration parameters for alignment of an acetabular component in total hip arthroplasty, comprises the steps of determining patient specific morphology information relating to a geometry of the patient's pelvis; and processing the patient specific morphology information for obtaining a set of two patient specific calibration parameters relating to rotational offsets of the acetabular component. The calibration parameters are chosen such that a second parameter of the set of calibration parameters may be adjusted independently from a first parameter of the set of calibration parameters by rotating the acetabular component around a main instrument axis of the acetabular component. |
申请公布号 |
EP2442757(A1) |
申请公布日期 |
2012.04.25 |
申请号 |
EP20100722960 |
申请日期 |
2010.06.08 |
申请人 |
UNIVERSITAET BERN |
发明人 |
ZHENG, GUOYAN;DONG, XIAO;NOLTE, LUTZ-PETER |
分类号 |
A61F2/46 |
主分类号 |
A61F2/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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