Circular stapler for hemorrhoid operations
CA 2743946 C · Owner: Tyco Healthcare Group Lp · Inventors: Csiky, Laszlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A circular stapler for performing hemorrhoidal operations the stapler comprising: an anvil and a stapler head the anvil being supported on a shaft and being movable in relation to the stapler head between open and closed positions characterized in that the stapler includes a ring which is arbitrarily displaceable along the shaft and a displacing member having a first end connected to the ring and a second end extending through a body of the stapler the displacing member being movable to arbitrarily displace the ring along the shaft wherein the body of the stapler includes a longitudinal slot the second end of the displacing member extending through the longitudinal slot such that the …
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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 1, 2004 and granted November 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 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.
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.