Electrosurgical cartridge for use in thin profile surgical cutting and stapling instrument
US11013552B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2017 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Apr 1, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1465
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present disclosure provides a surgical instrument that includes an end effector configured to slideably receive a cutting member. The end effector includes a first and second jaw that is movable relative to the first jaw, a hot zone in a center portion of the end effector, and cool zones in both side portions of the end effector. The first and second jaws define an elongate slot therebetween, to slideably receive the cutting member within the elongate slot to cut tissue located between the first and second jaws. The first jaw includes a first insulative layer and a second insulative layer in the hot zone, a first electrode layer on the first insulative layer, a second electrode layer on the second insulative layer, and heat sink layers in the cool zones. The heat sink layers are configured to cool the tissue in the cool zones to minimize lateral thermal spread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.