Dilation balloon having multiple diameters
CA 2379670 A1 · Owner: Wilson-Cook Medical Inc. · Inventors: Lombardo, Giuseppe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dilation balloon catheter is disclosed comprising a non-compliant balloon attached to a catheter, the balloon portion includes a plurality of sections having different outer diameters, as measured at the central portion or midpoint of the section, when the balloon is inflated. In one embodiment that is deployable from an endoscope to treat oesophageal pyloric, or colonic , strictures, a series of progressively larger balloon sections are used to safely dilate the stricture in stages. Each section includes a central portion having a waist for centering the balloon over the stricture with the distal , section having the smallest diameter and the intermediate and proximal sections …
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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 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2022.
- 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.