Self-expanding prosthesis having stable axial length
CA 2086333 C · Owner: Schneider (Usa) Inc. · Inventors: Porter, Christopher H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A body implantable stent (16) consists of two or more generally tubular, coaxial and slidably connected stent segments (20 22). Each segment (20, 22) is of open weave construction formed of, multiple braided, helically wound strands of resilient material. The stent is elastically deformed to a reduced radius when deployed. When released after positioning the stent (16) self-expands, radially and each segment (20 22) contracts in the axial direction. To preserve a consistent length of the stent (16) the axially outward and non-overlapping portions (30 32) of the stent (16) can, be designed for secure fixation to the tissue for example as, radially outward flares (34 36). Alternative …
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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 25, 1991 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2013.
- 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.