Cholangiography device and method
CA 1074656 A · Owner: Kendall Company (The) · Inventors: Patel, Bhupendra C.; Mcwhorter, Daniel M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for use in cholangiography and similar procedures comprising, a first syringe having a barrel defining a chamber for retaining an irrigation liquid and a plunger having one, end received in the chamber for pumping the liquid from the chamber. The device has a second syringe having a barrel defining a chamber for retaining a liquid contrast medium and a plunger, having one end received in the chamber of the second syringe for pumping the contrast medium from the chamber. The device has a catheter having a distal end, a proximal end and a lumen extend-, ing through the catheter. The device also has means for connecting the proximal end of the catheter to the chambers of the first and …
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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 April 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 1997.
- 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.