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Expired Canadian patentCanada

Unfolding anastomosis ring device

CA 2483238 C · Owner: Beaupre, Jean · Inventors: Beaupre, Jean

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An anastomotic ring device for forming a hollow rivet (ring) attachment between tissue lumens facilitates laparoscopic or endoscopic implantation by including features that facilitate assembly specifically by forming from constituent arcuate members or petals that join with one another at a circular midpoint. Automated assembly is thereby facilitated with each longitudinal half including a "crown" of these arcuate members arranged in a cylindrical pattern with equally spaced curved points and overlapping ends. Molded arcuate members with integral hinges further enhance assembly and provide other advantages especially when implanted with an applier capable of actuating the anastomotic ring …

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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 September 30, 2004 and granted June 19, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 30, 2004
GrantedJune 19, 2012
Term endedSeptember 30, 2024
Patent numberCA 2483238 C
Classification (IPC)A61B17/11 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 30, 2004Patent grantedJune 19, 2012Term endedSep 30, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.