Drug delivery and dilation-drug delivery catheters in a rapid exchange configuration
CA 2195214 C · Owner: Schneider (Usa) Inc. · Inventors: Forman, Michael R.; Stowell, Lori L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Catheters for drug delivery or for both dilatation and drug delivery are provided with a guide wire lumen (14) terminating within the catheter shaft (12) and having an opening through the catheter shaft (12) to enable a guide wire (28) to exit the catheter shaft (12) substantially distal to the proximal end of the catheter. In one embodiment drug delivery ports (36) are provided between occlusion balloons (22, 24). In another embodiment a dilatation balloon (120) is also provided between the occlusion balloons (22 24). In another, embodiment, a double layered balloon is provided to simultaneously dilatate the stenosis and deliver medication to the site. Alternatively a balloon can be …
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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 July 10, 1995 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 10, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 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.