Cryosurgical instrument with enhanced heat exchange
US8083733B2 · kind B2 · utility
13Cited by
218References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2009 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Apr 13, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0287
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cryosurgical instrument features a cryogen in liquid or liquid-gaseous (mist) form being supplied by a feeding lumen into the internal space of a cryotip at the distal end of the cryosurgical instrument. The distal section of the feeding lumen is helically coiled, so that an outer diameter of the helically coiled distal section fits an inner diameter of a cylindrical envelope of said cryotip, and said helically coiled distal section and said cylindrical envelope are in thermal contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.