Thin wall catheter having enhanced torqueability characteristics
CA 2189135 C · Owner: Schneider (Usa) Inc. · Inventors: Ju, Byung H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A diagnostic catheter (10) comprises a tubular body (12) having an inner layer (28) of 100 percent polyamide over which is a braided metal wire sleeve (30) and an outer layer (32) formed as a blend of either the polyamide and PEBA along with a suitable radiopaque filler or, alternatively, a blend of PEBA having different durometers. Affixed either directly to the end of the above tubular body (12) or to a stem member (34) secured to that tubular body (12) is a soft-tip (40) formed from a blend of PEBA whose hardness is such that the catheter (10) can be considered as having an atraumatic tip. The resulting catheter (10) exhibits excellent torque and column strength characteristics while …
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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 February 27, 1995 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2017.
- 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.