Safety shield for medical needles
CA 2441479 C · Owner: Fiser, Richard · Inventors: Thorne, David L.; Weilbacher, Eugene E.; Thorne, Gale H. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Medical needle shield apparatus (10) for covering a needle after use. A shield (22) with two or more segments (12 and 14) hingedly connected to each other is movable from a retracted position where the needle (16) is exposed to an , extended position where the shield extends beyond the end of the needle. The needle is affixed in a hub (18) of a medical needle device and the shield is , articulated to the hub. At least one of the two or more segments has an open orifice through which the needle passes to form an axis of intersection about the needle. The number of hingedly connected segments depends upon the needle length and device length required to extend the shield beyond 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 March 6, 2002 and granted May 3, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2024.
- 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.