Two piece tube for suction coagulator
US8454600B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 2009 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Sep 6, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical suction coagulator includes a housing having proximal and distal ends and a malleable elongated tube-like shaft extending longitudinally from the distal end of the housing. The tube-like shaft includes a tube-like dielectric sheath and a tube-like electrode having a first thermal conductivity K1 disposed coaxially through the tube-like dielectric sheath. The tube-like electrode operably couples to a source of electrosurgical energy. A distal end of the tube-like electrode protrudes from a distal end of the tube-like shaft. One or more aspiration ports are defined in a distal end of the tube-like electrode. A proximal end of the tube-like electrode operably couples to a source of suction. A thermally conductive member having a second thermal conductivity K2 that is less than K1 is disposed concentrically about the tube-like shaft. The thermally conductive member is configured to impede the propagation of thermal energy in a proximal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.