Scaffold for tissue engineering, artificial blood vessel, cuff, and biological implant covering member
CA 2484012 C · Owner: Japan As Represented By President Of National Cardiovascular Center · Inventors: Nakayama, Yasuhide; Nemoto, Yasushi; Tatsumi, Eisuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a porous scaffold for tissue engineering which allows easy cell engraftment and cell culture and thus enables stable organization and an artificial blood vessel which exhibits high patency rate even if the inner diameter is small. The scaffold for tissue engineering is made of thermoplastic resin which forms a porous three-dimensional network structure having communication property, wherein the porous three-dimensional network structure has an average pore diameter of from 100 to 650µm and an apparent density of from 0.01 to 0.5 g/cm3. The artificial blood vessel is composed of this scaffold. The invention provides a cuff which allows easy infiltration of …
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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 March 25, 2003 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2025.
- 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.