Methods for generating intraoperative surgical guidance during joint arthroplasty based on dynamic ligament tension
US12023104B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2022 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Sep 19, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for generating intraoperative surgical guidance during a knee arthroplasty includes: preceding resection of a first bone and a second bone in a knee of a patient, generating a first ligament tension curve for a first ligament in the knee; generating a second ligament tension curve for a second ligament in the knee; storing a first target tension curve for the first ligament based on the first ligament tension curve; and, succeeding resection of the first bone and succeeding placement of a first test implant on the first bone, generating a third ligament tension curve for the first ligament; characterizing a first phase difference between the third ligament tension curve and the first target tension curve; and in response to the first phase difference exceeding a threshold negative phase difference, outputting a first prompt to a surgeon to further resect the first bone proportional to the first phase difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.