Vascular catheter having low-profile distal end
CA 2098570 C · Owner: Scimed Life Systems, Inc. · Inventors: Jang, Yue-Teh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ultrasonic imagine catheter (50) comprises a catheter body (52) having a distal region (54) and proximal region (56). The distal region (54) has a reduced cross-sectional area compared to that of the proximal region (56), and the proximal region includes at least two lumens (64, 66) therethrough for accommodating a movable guidewire (68) and a rotatable working element (72), respectively. The catheter body (52) may be inserted over the movable guidewire (68), with the guidewire (68) passing through a lumen (58) in the distal region and the guidewire lumen (64) in the proximal region. After positioning the catheter body (52), the guidewire (68) can be retracted from the distal region …
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 December 13, 1991 and granted April 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2013.
- 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.