Articulation mechanisms for surgical instruments such as for use in robotic surgical systems
US11484372B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2019 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Jan 26, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/302
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An articulation assembly, surgical instrument including the same, and robotic surgical system including the same. The articulation assembly includes a lead screw assembly 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. The lead screw defines a proximal input end rotatably received within a first base assembly and a distal dock end rotatably received within a second base assembly. An articulation cable is operably coupled to the collar such that movement of the collar about the lead screw tensions or de-tensions the articulation cable. A set screw is threadingly engaged within the second base assembly and operably coupled to the distal dock end of the lead screw such that proximal rotational driving of the set screw urges the lead screw proximally, thereby urging the collar proximally to tension the articulation cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.