Needle shielding device, safety syringe incorporating the same and method of use thereof
CA 2105170 C · Owner: Talonn, Daniel Andreas · Inventors: Talonn, Daniel Andreas; Ranford, Alan Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A safety syringe preferably for use on a small diameter syringe (210) and including a needle shield (240) that is slidable between a needle exposing retracted position and a needle protecting extended position and wherein the needle shield is rotatable in the extended position to a locked and extended position. The safety syringe includes a collar (222) mounted on the distal end of the syringe and a plurality of elongate keys (242) on the interior surface of the needle shield. The keys are slidably received in various protrusions and slots (225, 231) on the collar (222) to releaseably retain the needle shield in the retracted and extended positions and to retain the needle shield in the …
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 February 27, 1992 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2014.
- 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.