Geared actuation mechanisms for surgical instruments such as for use in robotic surgical systems
US10945797B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2019 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Feb 26, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/715
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A gearbox assembly of a surgical instrument and a surgical instrument including the same are provided. The gearbox assembly includes a carriage configured to selectively translate, four gear systems each including an input portion configured to receive an input and an output portion configured to provide an output, a first differential gear assembly operably coupled between the first and second gear systems, a second differential gear assembly operably coupled between the third and fourth gear systems, and a third differential gear assembly operably coupled between the first and second differential gear assemblies. The third differential gear assembly including an output coupled to the carriage. In response to different inputs provided, the third differential gear assembly provides no output to the carriage. In response to equal inputs provided, the output of the third differential gear assembly translate the carriage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.