Articulating ultrasonic surgical shears
US7135030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2002 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Oct 14, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ultrasonic surgical instrument is described which incorporates an articulating shearing end-effector. The instrument comprises an ultrasonic transducer, an ultrasonically activated end-effector, and a substantially solid ultrasonic waveguide that connects the ultrasonic transducer to the end-effector. The waveguide comprises a transmission section extending from the transducer to a fixed node, and an articulation section extending from the fixed node to a pivoting node. The end-effector includes a bifurcated waveguide segment. A handle is adapted to hold the transducer. An outer sheath extends from the handle to the end-effector and surrounds the waveguide. An actuation trigger is rotatably positioned on the handle, and an actuation arm extends from a distal end of the actuation trigger to the pivoting node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.