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Expired Canadian patentCanada

Method and apparatus for changing the concentration of a target gas at the blood compartment of a patient's lung during artificial ventilation

CA 2605950 C · Owner: Boehm, Stephan · Inventors: Manegold, Christoph; Boehm, Stephan; Tusman, Gerardo

CIPO record

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Abstract From the Canadian patent

The invention refers to a method and an apparatus for changing the concentration of a target gas at the blood compartment of a patient's lung from an actual target gas concentration to a desired target gas concentration during artificial ventilation with an inspiratory gas composition by a respirator being controlled via a set of ventilation parameters. In order to decrease the negative effects of general anaesthesia during artificial ventilation even further, the method according to the invention comprises the following steps: a) ventilating the lung in a first ventilation stage and b) , ventilating the lung in a second ventilation stage in which alveolar recruitment is promoted.

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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 April 22, 2005 and granted June 11, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 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.
FiledApril 22, 2005
GrantedJune 11, 2013
Term endedApril 22, 2025
Patent numberCA 2605950 C
Classification (IPC)A61M16/01

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedApril 22, 2005Patent grantedJune 11, 2013Term endedApril 22, 2025

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