Medical guidewire
CA 2003451 A1 · Owner: De Toledo, Fernando Alvarez · 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 (10) has an elongated body a, relatively more flexible distal tip region and a core (12) having a body (32) of first diameter a distal, portion (34) of relatively smaller diameter and a, generally flat distal end (38) disposed in the tip region and spaced proximally from a tip element (22) defining the guidewire distal end. The core distal portion is formed of nitinol. A first coil (14) has its proximal end joined to the core body by a coupling (37) and extends along the core to a termination point in the tip region, proximal of the core end. A relatively more flexible second coil (18) has a proximal end joined to the first coil and a distal …
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.