Hand-held, heat sink cryoprobe, system for heat extraction...

F - Mech Eng,Light,Heat,Weapons – 25 – B

Patent

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Details

F25B 21/02 (2006.01) A61B 18/02 (2006.01) F25B 25/00 (2006.01) A61B 17/00 (2006.01) F25B 9/14 (2006.01) F25D 19/00 (2006.01)

Patent

CA 2447429

A cryoprobe system utilizing a monolithic, insulated, hand-held thermal mass (1) having an exposed tip (3) for cryosurgical applications and the like, as well as a heat extraction base (4) configured to interface with the thermal mass to quickly and efficiently reduce the heat of the thermal mass to cryogenic temperatures. The heat extraction base of the preferred embodiment of the present invention is configured to interface with the tip (17) of the thermal mass, such that the tip plugs in securely to the base, to permit an efficient thermal transfer of heat from the thermal mass through the base via a heat exchange system communicating with the base which employs a low temperature cryo-refrigeration unit (20). Also claimed is the method of cryosurgery employing the device(s) of the present invention.

L'invention concerne un système de cryosonde utilisant une masse thermique monolithique, isolée, manuelle (1) pourvue d'une pointe exposée (3), servant à des applications cryochirurgicales et analogues, ainsi que d'une base d'extraction de chaleur (4) conçue pour être reliée à la masse thermique afin de réduire rapidement et efficacement la chaleur qu'elle contient et atteindre ainsi des cryotempératures. La base d'extraction de chaleur du mode de réalisation préféré de l'invention est configurée pour être reliée à la pointe (17) de la masse thermique de sorte que la pointe se branche à demeure dans la base et permette un transfert de chaleur efficace de la masse thermique à la base, via un système d'échange thermique qui communique avec la base et qui utilise une unité de cryoréfrigération à basse températures (20). Par ailleurs, l'invention concerne un procédé cryochirurgical faisant intervenir le/les dispositif(s) de l'invention.

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