Surgical stapling instrument with telescopic trocar assembly
US11534173B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2021 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Jul 10, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/0813
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical stapling instrument includes an adapter assembly having a trocar assembly transitionable between extended and retracted configurations. The trocar assembly includes a first member rotatably supporting a lead screw, a second member, and a third member slidable relative to the second member. The second member is operatively coupled to the lead screw such that rotation of the lead screw causes axial displacement of the second member relative to the first member. The third member includes a trocar engageable with the anvil assembly for axial displacement therewith. The third member is transitionable between an engaged state, in which, the third member is operatively coupled to the lead screw such that rotation of the lead screw causes axial displacement of the third member relative to the second member, and a disengaged state, in which, the third member is operatively disengaged from the lead screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.