Method and apparatus for dilatation of a stenotic vessel
CA 2118886 C · Owner: Interventional Technologies, Inc. · Inventors: Vigil, Dennis; Olson, Thomas E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method of operation are disclosed for using an expandable balloon catheter to perform a combination angioplasty and atherectomy procedure on a stenotic blood vessel. The expandable balloon has a plurality of atherotomes attached to its outer surface and, longitudinal, transverse, or rotational oscillatory motion is imparted to the atherotomes to assist in incising the stenotic tissue, prior to or during dilatation of the stenotic segment of the blood vessel.
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 March 11, 1994 and granted December 8, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 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.