Exchangeable integrated-wire balloon catheter
CA 2104121 C · Owner: Higgins, Sheryl W. · Inventors: Higgins, Sheryl W.; Walker, Blair D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fully exchangeable integrated-wire dilation catheter (30) for performing angioplasty is disclosed having a flexible small diameter guide wire (32) provided with an enlarged diameter distal end portion (52) and a flexible elongated tubular shaft (34) with at least one dual function fluid conducting lumen (46) adapted to receive the guide wire (32) extending therethrough. The distal end (38) of the tubular shaft (34) is connected to the proximal end of an expandable balloon (44) provided with a coaxially aligned distal orifice (48) having means for releasably engaging the enlarged distal end portion (52) of the guide wire (32) in sealing relationship. In a preferred embodiment the sealing …
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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 April 23, 1992 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2014.
- 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.