Safety needle
CA 2132879 A1 · Owner: Becton, Dickinson And Company · Inventors: Clement, Rene; Clement, Rene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surgical needle assembly is disclosed for use in the introduction of a catheter into a blood vessel. The assembly includes a safety feature which shields the needle. The assembly is made up of a cannula having a proximal end and a blunt distal end. An axial lumen extends between the two ends. A cannula hub is secured to the proximal end of the cannula. A needle is snugly located axially in the lumen of the cannula. The needle has a proximal end and a sharp distal end. A needle hub is secured to the proximal end of the needle. A spring is provided for biasing the needle relative to the cannula such that the needle is normally in a first equilibrium position in which the cannula shields 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 September 22, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 22, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 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.