Interventional catheter
CA 2133698 C · Owner: Kastenhofer, Gerhard · Inventors: Kastenhofer, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interventional catheter for angioplasty and the like comprising a catheter tube 1 formed of two superposed layers 2 and 3 of materials different from one another. The inner layer 2 is comprised of a low friction non kinkable material to avoid risk of clogging of a guide wire 11 in the longitudinal lumen 12. The outer layer 3 is comprised of a material with higher friction coefficient than the material forming the inner layer. The balloon 4 is welded at its distal end 5 to the outer layer 23 of the catheter tube. The proximal end 6 of the balloon 4 is welded to a tube 7 surrounding the catheter tube 1.
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 October 5, 1994 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2016.
- 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.