Ultrasonic end effectors with increased active length
US9414853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2013 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Oct 5, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320094
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument includes an end effector having a proximal end segment, a distal end segment, and an insert segment. The proximal end segment and the distal end segment are composed of a first material. The insert segment is composed of a second material. The insert segment is located between the proximal end segment and the distal end segment along the longitudinal axis of the end effector. The insert segment functions to bridge or fill the nodal energy gap. A surgical instrument includes a transducer configured to produce vibrations along a longitudinal axis as a predetermined frequency. An ultrasonic blade extends along the longitudinal axis coupled to the transducer. An insert segment or a pad is positioned adjacent to the blade such that it engages the blade when the surgical instrument is in a closed position and generates heat filling the nodal energy gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.