Artificial tube for nerve
CA 2334688 A1 · Owner: Shimizu, Yasuhiko · Inventors: Shimizu, Yasuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An artificial neural tube the degradation rate of which in vivo can be controlled so that it can remain in vivo until the completion of the nerve regeneration and, after the nerve regeneration which can induce the , elongation along the proper direction of an axon regenerating from the end of the broken nerve without pressurizing the regenerating nerve and promotes the invasion of capillary blood cells so as to contribute to the early restoration of the blood flow, thereby promoting the regeneration of the nerve tissue characterized by consisting of tubes (10 20) having tubes (11, 21) made of a , biodegradable/absorbable material and provided with coating layers (13 23) on , the …
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 June 7, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2021.
- 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.