Triple lumen catheter
CA 2587151 C · Owner: Covidien Ag · Inventors: Hayakawa, Toshinobu; Kanie, Nobuatsu; Hoshinouchi, Yuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A triple lumen catheter comprises a transfusion lumen (4) a blood feeding , lumen (2) and a blood removing lumen (3). The transfusion lumen (4) has a distal end and a leading end portion (12 12A), the leading end portion , progressively reducing in diameter to a proximal end. A transfusion port (4a) is formed in the proximal end of the transfusion lumen. The blood feeding lumen (2) has a blood feeding port (2a) in a region of the proximal end of the leading end portion, the blood feeding port opening at least partially in an axial direction of the leading end portion. The blood removing lumen (3) includes a pair of blood removing ports (3a 3b) provided in opposite side , walls of the …
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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 September 30, 2005 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.