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Expired Canadian patentCanada

Tissue ablation with irreversible electroporation

CA 2550846 C · Owner: The Regents Of The University Of California · Inventors: Rubinsky, Boris; Davalos, Rafael

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Abstract From the Canadian patent

A new method for the ablation of undesirable tissue such as cells of a cancerous or non-cancerous tumor is disclosed. It involves the placement of electrodes into or near the vicinity of the undesirable tissue through the application of electrical pulses causing irreversible electroporation of the cells throughout the entire area of the undesirable tissue. The electric pulses irreversibly permeate the cell membranes thereby invoking cell death. , The irreversibly permeabilized cells are left in situ and are removed by the body immune system. The amount of tissue ablation achievable through the use of irreversible electroporation without inducing thermal damage is considerable.

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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 21, 2004 and granted January 23, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2024.
  • 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.
FiledDecember 21, 2004
GrantedJanuary 23, 2018
Term endedDecember 21, 2024
Patent numberCA 2550846 C
Classification (IPC)A61B18/18

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 21, 2004Patent grantedJan 23, 2018Term endedDec 21, 2024

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.