Catheter/needle assembly, kit and method for administering therapeutic agents to the subarachnoid space
CA 2113152 C · Owner: Becton, Dickinson And Company · Inventors: Gregg, Joseph John; Griffith, Richard L. Iii; Yurkewych, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is a catheter/needle assembly for delivery of a medicament to the subarachnoid space of a patient which includes an elongate flexible tube portion sized to fit within the bore of an epidural needle. The flexible tube portion includes a proximal end a distal, end, and a hollow bore therethrough. The assembly further includes an elongate needle portion having a distal point and a passageway therethrough. The needle portion is fit within, fixedly attached to and fluidly sealed to the bore of the tube. The needle point projects distally a distance beyond the distal end of the tube so that the distal end of the tube forms a shoulder projecting radially outwardly at the needle …
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 January 10, 1994 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 10, 2016.
- 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.