Disposable device for multi-ligation of bleeding esophageal varices
CA 2511940 A1 · Owner: Al-Taher, Ali Sulaiman Murad · Inventors: Hassanien, Ali Mohamed Ali; Al-Taher, Ali Sulaiman Murad
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to device for ligation of bleeding esophageal varices. The device consists of three parts of cylinders. The first part (10) characterized by its interior 2/3 is in the form of toothed rows (11) with equal dimensions and parallel to each other along its circular surface. Its posterior 1/3 is in the form of two cylinders (10 14) inside each other and , connected together at its junction with the anterior 2/3 part leaving a specific space in between. The second part (16 17) represent part of cylinder , with three toothed arms (17) situated vertically on it and similar in shape and dimensions. The third part consists of two cylinders (22 23) inside each , …
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 December 27, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 27, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 2025.
- 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.