Hip replacement in computer-assisted surgery
US9554863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2014 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jan 16, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B34/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for calculating a position and orientation of an acetabular cup in computer-assisted surgery comprises a first trackable reference secured to a pelvis, with a frame of reference being associated with the first trackable reference. A device is positionable between a femoral neck and the acetabulum of the pelvis in a known relation, the device having a second trackable reference. Sensors track the trackable references for position and orientation. A position/orientation calculator calculates a position and orientation of the frame of reference and of the device and for determining an orientation of the neck axis with respect to the frame of reference from the known relation at a desired position of the femur. An implant position/orientation calculator provides cup implanting information with respect to the orientation of said neck axis as a function of the tracking for position and orientation of at least the first trackable reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.