Catheter for cell delivery in tissue
CA 2470116 C · Owner: Regents Of The University Of Minnesota · Inventors: Hammer, Bruce E.; Conroy, Mark J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus delivers an agent to a treatment region the apparatus having an , outer cannula or lumen that has an internal surface and an external surface the external surface being substantially smooth to penetrate tissue whereas the distal end is tapered; an inner cannula or lumen coaxial to the outer , cannula providing a common fluid path (that is the same fluid passes through both the inner cannula and outer cannula) at the distal end with the inner surface of he outer cannula; a source of fluid to be passed through the common fluid path, the source of fluid comprising at least a reservoir of nutrients and/or gases for maintaining cells contained in a lumen coaxial and internal …
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 December 10, 2002 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 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.