Vascular system treating method and apparatus
CA 2203362 C · Owner: Novoste Corporation · Inventors: Crocker, Ian R.; Weldon, Thomas D.; Rosen, Jonathan J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is an apparatus and method for delivering a treating element (22), such as a radiation source, through a catheter (60) to a desired site in avascular system of a patient such as a coronary artery, for inhibiting the formation of scar tissue such as may occur in restenosis following balloon angioplasty. The apparatus includes an elongate flexible catheter tube (20) having proximal and distal portions, with a lumen (202) extending therebetween and a diameter, sufficiently small for insertion into the patient's vascular system. One or moretreating elements (22) such as a capsule or pellet containing radioactive material is positionable within the lumen and movable between the …
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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 October 23, 1995 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2017.
- 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
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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.