Acetabulum rim digitizer device and method
US10405928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Jun 4, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4668
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computer-assisted surgery (CAS) system for tracking an orientation of a pelvis comprises at least one instrument, the instrument having an acetabulum abutment end adapted to be received in an acetabulum, a rim abutment adapted to be abutted against a rim of the acetabulum, and an indicator representative of a physical orientation of the instrument. An inertial sensor unit is connected to the at least one instrument, the inertial sensor unit producing readings representative of its orientation. A computer-assisted surgery processor unit comprises a coordinate system module for setting a pelvic coordinate system from readings of the at least one inertial sensor unit when the at least one instrument has the acetabulum abutment end received in the acetabulum, the coordinate system module setting the pelvic coordinate system by obtaining a plurality of orientation values from the at least one inertial sensor unit when the rim abutment is abutted against locations of the rim, one of said orientation values having the indicator aligned with a reference landmark, the coordinate system module defining an acetabular plane representative of the pelvic coordinate system from the plurality of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.