Surgical instrument with multi-diameter shaft
US9795379B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2013 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Jun 12, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2946
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus includes an end effector and a shaft having a longitudinal axis. The end effector includes a first jaw and second jaw. The first jaw is pivotable relative to the second jaw. The distal end of the shaft has an articulation joint that pivots the end effector from a first position aligned with the longitudinal axis of the shaft to a second position angled from the longitudinal axis of the shaft. The articulation joint includes at least one articulation band that bends outwardly within the shaft when the end effector is in the first position. The articulation band then bends inwardly when the end effector is pivoted from the first position to the second position. The shaft includes an outer closure tube having a neck-down region that promotes a greater range of pivotal movement within a surgical passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.