Radially expandable stent
CA 2291307 A1 · Owner: Numed, Inc. · Inventors: Tower, Allen J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radially expandable stent for intravascular implantation has a tubular structure, defined by an open-ended interior adapted to receive an inflatable portion of a balloon, catheter for percutaneous delivery into a patient lumen. The stent is formed from a plurality, of malleable wire sections each section having a series of sinusoidal bends with adjacent, wires being welded to one another at the apex of each of said sinusoidal bends. The wire, sections are formed circumferentially to define a unitary tubular structure. Preferably, a layer, of a fluid impermeable material can be disposed over the wire-mesh frame of the stent, the, material being synthetic or biological in nature …
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 November 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2021.
- 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.