Ultrasonic surgical instrument with articulating end effector having a curved blade
US11678903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2020 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Mar 27, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus comprises a body assembly and a shaft extending distally therefrom. The shaft defines a longitudinal axis. The apparatus further comprises an acoustic waveguide and an articulation section coupled with the shaft. A portion of the articulation section encompasses a flexible portion of the waveguide. The articulation section further comprises first member and a second member that is longitudinally translatable relative to the first member. The apparatus further comprises an end effector including an ultrasonic blade in acoustic communication with the waveguide. A distal portion the ultrasonic blade is disposed in a first direction away from the longitudinal axis at a bend angle. The end effector also includes a clamp arm that is coupled with the first member and the second member, and an articulation drive assembly operable to drive articulation of the articulation section to thereby deflect the end effector from the longitudinal axis in the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.