Debridement of bodily cavities using debridement fluids
CA 2106573 C · Owner: Escalon Ophthalmics, Inc. · Inventors: Federman, Jay L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Foreign substances may be removed from a mammalian body cavity containing an aqueous phase by injecting into the cavity a water-immiscible, optically clear biocompatible debridement fluid to at least partially displace the aqueous phase; and removing the aqueous phase and the foreign substances. In addition a method is , provided for visualizing a transparent foreign substance in a mammalian body cavity using a water-immiscible; optically clear biocompatible fluid having a refractive index different from that of water. The debridement fluid may also be used to reposition desirable substances, such as a lens in an oculac cavity, or to remove a secondary membrane from a cavity lining or …
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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 February 19, 1992 and granted August 20, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 19, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 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
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.