Balloon for medical catheter
CA 2094597 C · Owner: Boston Scientific Corporation · Inventors: Madenjian, Arthur R.; Sahatjian, Ronald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dilation balloon (4) for medical use formed of a major amount of a crystallizable polymer such as high molecular weight polyethylene terephthalate with an intrinsic viscosity greater than about 0.7 and a relatively minor amount of an additive polymer that interrupts the crystalline structure of the crystalline polymer in the final product. The final product is a blend that when formed into a balloon (4), exhibits advantageous properties of softness i.e. compliance and a low folded profile yet achieves, high hoop stress arid consequently high burst pressures. The balloon in the deflated state will thus yield when challenged by the wall of the lumen yet can be inflated to high pressure …
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 November 8, 1991 and granted December 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2013.
- 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.