A catheter tip for intratracheal ventilation and intratracheal pulmonary ventilation
CA 2109617 C · Owner: The United States Of America, Represented By The Secretary, U.S. Departm Ent Of Commerce · Inventors: Kolobow, Theodor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for intratracheal ventilation (ITV) and intratracheal pulmonary ventilation (ITPV) in which a catheter (I) positioned in a patient's trachea at the canna (6) supplies a constant supply of fresh oxygen containing gas to flush anatomical dead space. By positioning the catheter (1) in the patient's trachea, the dead space of the trachea is bypassed and the trachea is only utilised for expiration. The catheter (1) includes a catheter tip (4) which directs the constant supply of fresh oxygen containing gas in a manner so as to create subatmospheric pressures near the caring (6) and thus allows control of intratracheal airway pressures during the entire respiratory …
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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 May 20, 1992 and granted September 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2014.
- 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
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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.