Coil for electrosurgical instrument
US10383679B2 · kind B2 · utility
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2References
19Claims
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Assignee
Inventor
Key dates
| Filing date | Aug 3, 2016 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | May 14, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1475
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical instrument includes a needle configured as a first electrode and a coil extending through the needle and configured as a second electrode. The coil is movable relative to the needle, and as the coil is deployed it attains a coiled configuration and a twisted configuration. After the needle and the coil are inserted into tissue and energized with an electrical energy source, the needle and the coil apply current to the tissue to coagulate the tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.