Arterial catheter
CA 2122485 A1 · Owner: Weinstein, James D. · Inventors: Weinstein, James D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catheter system for percutaneous insertion into the lumen of a vessel which includes a hollow introducer needle (10) coaxially mounted within the catheter (20). Mounted with the introducer needle (10) is a guide wire (15) which is attached to the proximal end (11) of the needle (10) and formed in the shape of a loop (18) of a length sufficient to provide the necessary amount of wire (15) to guide the catheter (20) within the lumen. The catheter (20) has a notched tip (23) to help maintain the tip (22) in the vessel lumen during guide wire (15) placement and to inhibit passing through the opposite wall of the vessel lumen during insertion of the device.
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 October 20, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 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.