Cryotherapy probe and system
CA 2931693 C · Owner: Cryodynamics, Llc · Inventors: Duncan, Robert; Boldarev, Sergey; Littrup, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cryotherapy system (150) is provided with multiple cryoprobes (100) each of which has a shaft with a closed distal end adapted for insertion into a body and conduits for flowing a cryogenic fluid through the shaft to reduce a temperature of the distal end. A source is provided for the cryogenic fluid (154) and flow-control metering valves (158) are provided in fluid communication with the conduits and source of the cryogenic fluid. A compressor is provided in fluid communication with the conduits of the cryoprobes to define a self-contained fluid system. The flow-control metering valves and the compressor are controlled by a computer processor to provide the desired flows of the cryogenic …
Read the whole patent
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 January 15, 2004 and granted March 14, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2026.
- 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.