Local delivery of fibrinolysis enhancing agents
CA 2178487 C · Owner: Dunn, Randall C. · Inventors: Hubbell, Jeffrey A.; Hill-West, Jennifer L.; Dunn, Randall C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of preventing adhesions by topical administration of fibrinolysis enhancing agents is described. The method uses a topically applied polymeric matrix for delivery of a fibrinolytic agent preferably urokinase, tPA, hirudin, or most preferably ancrod. In the most, preferred embodiment the matrix is extremely thin and is polymerized in suti to form a biodegradable polymeric matrix. The matrix provides controlled release of the agent over a period of time effective to prevent surgical adhesions and is biodegradable usually within, the same time frame. Examples demonstrate that the combination of the matrix and the urokinase tPA, birudin, or ancrod is effective in preventing surgical …
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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 9, 1994 and granted August 28, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2016.
- 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.