Method of making a catheter with x-ray opaque markings
CA 1064337 A · Owner: Sherwood Medical Industries Inc. · Inventors: Corbett, Joseph H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a method of making an elongated medical catheter having an x-ray opaque marking comprising the steps of: extruding an elongated plastic tubular member then coating a selected surface area of the tubular member with a mixture while leaving other areas free of the mixture, the mixture including an x-ray opaque material and a solution, the solution comprising a plastic material and a solvent therefor, and solidifying the coating in situ to provide an x-ray opaque marking on the tubular member. The marking is formed in its entirety from the mixture and the solution is in liquid form when at room temperature prior to the step of solidifying the coating and the, solvent is also a …
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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
- Granted October 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 16, 1996.
- 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.