Selectively permeable, highly distensible occlusion balloon
CA 2435915 A1 · Owner: Chien, Thomas Yung-Hui · Inventors: Chien, Thomas Yung-Hui; Chan, Huey Quoc; Porter, Stephen Christopher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and apparatus for occluding a vascular site. A catheter (12) having a highly distensible occlusion balloon (10) detachably mounted at a distal end thereof; is provided to the vascular site and at least partially filled with an aqueous balloon (10) inflation fluid which allows the balloon (10) placement to be imaged. The balloon is porous to the aqueous inflation fluid and the inflation fluid is gradually displaced through the balloon pores (20) by a liquid filling composition which is solidifiable on contact with the aqueous inflation fluid to produce a mass to which the balloon (10) is nonporous. The filling composition is injected to bring the balloon wall into contact …
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 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2023.
- 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.