Balloon cannula with over-center clamp
CA 2447100 A1 · Owner: Peartree, Kenneth · Inventors: Peartree, Kenneth; Tanaka, Shigeru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a skin seal (10) and anchoring cannula (12) for use in surgery. The skin seal (10) generally includes a distally extending flexible or compressable member (22) and a latch assembly (20) to secure the skin seal (10) about a shaft (26) of the cannula. Preferably the latch assembly (20) is of an over the center clamp or lock design. The disclosed cannula is preferably a balloon tip cannula having an inflation port (34) and a lumen (66) communicating within the interior of the balloon (32) so as to inflate the balloon (32). There is also a method of securing a cannula to tissue preferably an abdominal wall, utilizing the disclosed balloon tip cannula and skin seal.
Read the whole patent
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 May 31, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2024.
- 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.