System and method for the registration of an anatomical feature
US10624764B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2016 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Feb 11, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/4658
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A computer-assisted surgery (CAS) system for navigating a surface of an anatomical feature in a coordinate system comprises an apparatus for obtaining points of a surface of an anatomical feature including a base adapted to be secured to the anatomical feature, a spherical joint supported by the base, the spherical joint having a ball member rotatable in at least two rotational degrees of freedom relative to the base and having a center of rotation fixed relative to the base, a distance-measurement device connected to the ball member such that a distance-measurement axis of the distance-measurement device passes through said center of rotation of the ball member. An inertial sensor unit produces signals representative of the orientation of the distance-measurement device. A CAS processor receives the signal from the at least one inertial sensor unit and outputs orientation data relating at least an object relative to the surface of the anatomical feature using the model of the surface in the coordinate system and the signals from the at least one inertial sensor unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.