Cryosurgical instrument with enhanced heat transfer
US7967815B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2010 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Mar 25, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0268
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Cryosurgical instruments and methods utilizing improved heat transfer characteristics. A cryosurgical device includes: a tubular housing; a cryogen supply passage; a heat exchange enhancing member in the housing, disposed along a longitudinal axis of the housing; an annular cooling passage between the heat exchange enhancing member and the tubular housing; a tip cooling and cryogen flow directing section that transmits a temperature of a cryogen flow to the tip, and an insulation element in the tubular housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.