Implant based planning, digitizing, and registration for total joint arthroplasty
US10932866B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2020 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4633
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for removing an implant attached to a bone during revision joint replacement surgery includes a library of implant models. A series of surface points are collected on the implant with a digitizer. A best match is computed between the collected surface points and an implant model in the library of implant models to register the position of the implant model to the implant. A location is computed of a material-implant interface based on the geometry of the implant model and the registered position of the implant model. Material is removed at the material-implant interface to separate the implant from the bone. A computer-assisted surgical system is provided for performing the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.