Computer-assisted hip replacement surgery
US11311339B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 16, 2019 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Aug 21, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4696
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A CAS system and method for guiding an operator in inserting a femoral implant in a femur as a function of a limb length and orientation of the femoral implant with respect to the femur, comprising a reference tool for the femur, a registration tool, a bone altering tool and a sensing apparatus. A controller is connected to the sensing apparatus to: i) register a frame of reference of the femur by calculating surface information provided by the registration tool as a function of the position and orientation of the registration tool provided by the sensing apparatus, and/or retrieving in a database a model of the femur; ii) calculate a desired implant position with respect to the frame of reference as a function of the limb length; and iii) calculate a current implant position and orientation in relation to the desired implant position with respect to alterations being performed in the femur with the bone altering tool, as a function of the position and orientation of the bone altering tool provided by the sensing apparatus and of a digital model of a femoral implant provided by the database. The database is connected to the controller for the controller to store and retrieve inform…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.