Dynamic cooling of human skin using a nontoxic cryogen with no ozone depletion and minimal global warming potential
US9050117B2 · kind B2 · utility
5Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Aug 27, 2007 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Nov 2, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00452
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improvement in a method for providing localized cooling of tissue when thermally mediated by electromagnetic radiation including directing at least one spurt of a heat transferring substance onto a selected location on the tissue, and preventing ignition of the heat transferring substance by heating from the electromagnetic radiation. Preferably liquid carbon dioxide under pressure is supplied as the heat transferring substance, and adiabatically expanded to provide a solid carbon dioxide spray onto the selected location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.