Safety syringe with off-axis needle cannula
CA 2107900 A1 · Owner: Haber, Terry M. · Inventors: Smedley, William H.; Foster, Clark B.; Haber, Terry M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A syringe (2) of the type having a barrel (4) with a plunger (6) disposed within the bore of the barrel includes a needle, assembly (22) housed within a needle assembly guide (14) positioned along the exterior (16) of the syringe barrel. The needle assembly guide provides a path along which the needle assembly moves between an extended position, with the needle exposed and a retracted, position, with the needle encompassed by the needle guide. A flow path (36, 44) exists between the interior (46) of the syringe barrel and the needle assembly when the needle assembly is in the extended position. Additionally, the needle assembly can be irreversibly locked (54, 60) in the retracted position …
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 7, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 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.