System for guiding a surgical tool relative to a target axis in spine surgery
US11998283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2018 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Mar 11, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3762
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a system for guiding a surgical tool (200) held by a user relative to at least one target axis (T) defined in a coordinate system of a patient's spine, comprising: (i) a robotic device (300) comprising: —a base (301), —a guiding device (303) configured for constraining the tool to a guiding axis (G), —a compact motorized actuation unit (304) movable relative to the base (301), coupled to the guiding device (303) for adjusting a position and orientation of said guiding device relative to the target axis, —a support unit (305) connected to the base (301), comprising at least one element designed to make contact with the spine or a region of the patient's body adjacent to the spine so as to provide a partial mechanical link between the guiding device and the spine, (ii) a passive articulated lockable holding arm (400) supporting the base (301) of the robotic device, (iii) a tracking unit (500) configured to determine in real time the pose of the guiding axis with respect to the coordinate system of the patient's spine, (iv) a control unit configured to: (a) determine the pose of the guiding axis with respect to the target axis, (b) compute a working space of t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.