Methods and devices for patient-specific acetabular component alignment in total hip arthroplasty
US9889023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2010 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Jun 29, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4668
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An acetabular component alignment device for total hip arthroplasty comprises a calibration component 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 b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.