Articulation mechanisms for surgical instruments such as for use in robotic surgical systems
US10888387B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2019 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Aug 8, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/715
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An articulation assembly for a surgical instrument, surgical instrument including the same, and robotic surgical system including a surgical robot and the surgical instrument including the articulation assembly. The articulation assembly includes lead screw assemblies each including a lead screw and a collar operably engaged about the lead screw such that rotation of the lead screw translates the collar about the lead screw. Articulation cables are operably coupled to the collars of the lead screw assemblies such that proximal movement of one of the collars about the respective lead screw tensions the corresponding articulation cable and such that distal movement of one of the collars about the respective lead screw de-tensions the corresponding articulation cable. Proximal gear assemblies are coupled to the lead screws. Coupling gears couple pairs of the proximal gear assemblies with one another to maintain a pre-tension on the corresponding articulation cables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.