Method for controlling end effector closure for powered surgical stapler
US11185331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Dec 15, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/0811
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A powered surgical stapler includes a motor unit, a movable member, a controller, a sensor assembly, an anvil, and an opposing deck surface. A method of operating the stapler includes controlling the motor unit to actuate the movable member to move from the open position towards the closed position. The method also includes sensing closure data using the sensor assembly. The closure data includes an initial tissue contact position, a gap formed between the anvil and the opposing deck surface, and an axial force on the anvil. The method also includes communicating the closure data to the controller. The method also includes determining at least one of an adjusted closure rate or an adjusted closure stroke using the closure data. The method also includes controlling the motor unit using at least one of the adjusted closure rate or the adjusted closure stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.