Magnetically controllable drug and gene delivery stents
CA 2821214 C · Owner: Drexel University · Inventors: Chorny, Michael; Alferiev, Ivan; Friedman, Gennady
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Magnetizable implantable devices and methods for their use in delivery of therapeutic agents encapsulated or dispersed in a magnetic carrier to a selected site of implantation in a subject are provided. In one embodiment the device includes a magnetizable stent where segments of the magnetizable compound have been electro-deposited on some of the struts of the stent. Blood flow through the artery brings the therapeutic agent in a magnetic carrier in proximity within the implanted stent. As blood flows through the stent the therapeutic agent in the magnetic carrier is attracted to the segments of the stent with the magnetizable compound.
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 April 16, 2004 and granted November 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2026.
- 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.