Small diameter guidewires
CA 2003447 A1 · Owner: Boston Scientific Corporation · Inventors: De Toledo, Fernando Alvarez
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A medical guidewire having a distal tip portion for advancement through a body by application of force to a proximal end portion includes an elongated multi-filar coil structural element and,a sheath disposed thereabout and along a substantial portion of the length of the structural element the sheath, formed of material that is non-corrosive within the body. The sheath flexes in unison with the structural element without kinking. The sheath and structural element in combination have a torque response along the joined length approaching 1:1, thereby allowing control of the distal tip at the guidewire within a body by application of rotational force to the proximal …
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 21, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2011.
- 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.