Vascular bypass grafting instrument and method
CA 2441874 A1 · Owner: Allen, William J. · Inventors: Allen, William J.; Miller, Arnold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An instrument for attaching a graft to an aorta includes a first needle assembly (230) for breaching the aorta to provide a hole in a wall thereof and a carrier portion (170) for insertion of an end of a tubular graft through the hole and into the aorta. Arms (172) are pivotally mounted on the instrument and are moveable from a position extending axially of the carrier (170) to a position extending radially from the carrier (170) to spread the end of the graft radially outwardly from a tubular portion of the graft to form an annular flange extending outwardly from the tubular portion and to , support the flange within the aorta and around the hole therein. A second needle assembly …
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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 August 31, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 31, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 2023.
- 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.