Articulation assembly for a surgical instrument such as for use in a robotic surgical system and methods of assembling the same
US11253328B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2021 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Mar 19, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/715
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument articulation assembly includes a lead screw sub-assembly including four lead screws. A first gear sub-assembly includes first and second gears coupled to the first and third lead screws. A second gear sub-assembly includes third and fourth gears coupled to the second and fourth lead screws, respectively, a first compound gear including a distal gear coupling the first and second gears with one another, and a proximal gear coupled with a first coupling gear disposed about a first input. The third gear sub-assembly includes a second compound gear including a distal gear coupling the third and fourth gears with one another, and a proximal gear coupled with a second coupling gear disposed about a second input. A rotational input provided to the first or second input respectively rotates the first and third lead screws and or the second and fourth lead screws.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.