Bio-absorbable plastic device for clinical practice
CA 2427601 A1 · Owner: Fukuchi, Mikio · Inventors: Shirahama, Hiroyuki; Miyazaki, Masamitsu; Fukuchi, Mikio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bio-absorbable polymers for use as medical materials for vascular stent and suture thread have almost defined dynamic properties such as tensile strength and almost defined decomposition rate for absorption. When the dynamic properties thereof are elevated, therefore, the bio-absorbable polymers turn fragile, involving slower decomposition rate. When the decomposition rate is elevated, further the dynamic properties, are deteriorated. Disadvantageously such bio-absorbable, polymers have limited purposes for use and limited sites for use. Thus, copolymerization of a bio-absorbable monomer as lactide with a cyclic depsipeptide can allow the adjustment of the dynamic properties and …
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 25, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2024.
- 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.