Controlled release structure for attaching medical devices
CA 2465164 C · Owner: Caizza, Richard J. · Inventors: Grady, William N.; Caizza, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A medical device for use with a fluid transfer device having a frusto- conically- shaped tip includes a hub having an open proximal end with a frusto-comically- shaped cavity therein a distal end and a passageway therethrough. The cavity is part of the passageway. A release element in the passageway of the hub is positioned to block fluid- tight engagement of the frusto-comically-shaped tip with the cavity of the hub. Structure is provided to release at least part of the release element upon application of a proximally directed force on the hub to allow the abrupt fluid-tight engagement of the tip and the cavity in the hub.
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 23, 2004 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 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.