Intra-arterial stent with the capability to inhibit intimal hyperplasia
CA 2031891 C · Owner: Cordis Corporation · Inventors: Fischell, Robert E.; Fischell, Tim A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is well known that radiation therapy can reduce the proliferation of rapidly growing, cancer cells in a malignant tumor. The present invention utilizes a radioisotope which is, integral to an arterial stent which can irradiate the tissue in close proximity to the, implantation site of the stent in order to reduce the rapid tissue growth caused by arterial, wall trauma resulting from balloon angloplasty or atherectomy.
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 10, 1990 and granted October 24, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2012.
- 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.