Automatic sheath protection of hypodermic needle
CA 2066035 A1 · Owner: Bobrove, Arthur M. · Inventors: Bobrove, Arthur M.; Bobrove, Arthur M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2066035 9101154 PCTABScor01, Various embodiments of a simple hypodermic needle assembly are described designed to automatically cover the pointed end of the needle after the assembly is used in order to prevent accidental punctures. A sheath (19) circumscribes the needle (15) and includes barbs (28) for interacting with a patient's tissue to cause sliding movement of the sheath over the needle pointed end when the needle is withdrawn from the patient. When the needle pointed end is covered, the barbs automatically withdraw and permit the needle sheath combination to be completely withdrawn from the patient.
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 July 16, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2012.
- 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.