Method for locating a center of rotation of an articulated joint
US12148080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2021 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Nov 26, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/105
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for locating a center of rotation of an articulated joint connecting two bones or set of bones of an upper or lower limb of a user, including performing a series of repetitive movements of sweeping one of the bones or set of bones around the joint, and simultaneously acquiring 3D positions of the bone or set of bones during said series, thereby obtaining a 3D cloud of points, computing a point referred to as center point, said center point being a searching point of the 3D searching space for which the standard deviation is the lowest considering the set of distances between the searching point and each point of the 3D cloud of points, transforming the 3D cloud of points into a plane, projecting the center point on said plane, thereby obtaining the center of rotation of the joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.