Method and anastomotic instrument for use when performing an end-to-side anastomosis
CA 2234148 C · Owner: Oticon A/S · Inventors: Rygaard, Jorgen A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
When performing an end-to-side anastomosis connecting the end (10) of a first vessel (9) to the edge region (12) around an opening in the side wall of a second vessel (11), an instrument (1) is used having a circumferential stapling anvil (3) secured to an anvil tube (2) accommodating the first vessel (9), the end of which is everted about the anvil (3) with the intima of the end region (10) facing the intima of the edge region (12) when the instrument , (1) with the first vessel (9) in place has been inserted into the opening in the second vessel (11). Then, a clamping tube (5) is advanced towards the anvil (3), clamping the end (10) and edge region (12) together against the anvil …
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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 October 31, 1995 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2017.
- 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.