Electrosurgical method and apparatus with varying stiffness capture components
US10363079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2016 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Apr 15, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical apparatus and method for cutting and resecting a tissue volume is described. The apparatus includes one or more electrosurgical filaments and capture components deployable by forward extension at or near a forward tip of an elongated shaft of the apparatus to form an elliptical path that defines, with the other capture components, a spheroidal receptacle configured to surround a tissue volume for resection. The elliptical path is formable by a first extension followed by a second extension, said first extension having a first axial component and a radial expansion component, and said second extension having a second axial component and a radial contraction component, where at least one of the capture components is of varying stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.