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Expired Canadian patentCanada

Bioabsorbable polymeric implants and a method of using the same to create occlusions

CA 2437694 C · Owner: The Regents Of The University Of California · Inventors: Murayama, Yuichi; Vinuela, Fernando

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Abstract From the Canadian patent

An embolic, bioabsorbable polymeric material (BPM) is incorporated into a coil to improve , long-term anatomic results in the endovascular treatment of intracranial aneurysms. The , material includes at least one biocompatible and bioabsorbable polymer and growth factors, is carried by hybrid bioactive coils and is used to accelerate histopathologic transformation , of unorganized clot into fibrous connective tissue in aneurysms. An endovascular cellular , manipulation and inflammatory response are elicited from implantation in a vascular , location. Thrombogenicity of the biocompatible and bioabsorbable polymer is controlled by , the composition of or proportioning the ratio 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 February 11, 2002 and granted September 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 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.
FiledFebruary 11, 2002
GrantedSeptember 4, 2012
Term endedFebruary 11, 2022
Patent numberCA 2437694 C
Classification (IPC)A61L31/14 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedFeb 11, 2002Patent grantedSep 4, 2012Term endedFeb 11, 2022

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.