Gas-heated gas-cooled cryoprobe utilizing electrical heating and a single gas source
CA 2589475 C · Owner: Livneh, Shimon · Inventors: Amir, Uri; Livneh, Shimon; Berzak, Nir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is of device, system and method for cooling and heating , an operating tip of a cryoprobe using a single source of compressed gas. Cooling of the operating tip is effected by Joule-Thomson expansion of a highpressure cooling gas through a Joule-Thomson orifice into an expansion chamber. Heating of the operating tip is effected by electrical resistance heating. In preferred embodiments, heating of the operating tip is effected by electrical resistance heating of low-pressure gas flowing towards the operating tip. Preferably, gas from a single gas source is supplied to the probe during both cooling and heating phases a cooling gas being supplied at , high pressure …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 6, 2005 and granted January 24, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 6, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.