Colorectal cell sampling device
CA 2570714 C · Owner: Ferrett, Colin George · Inventors: Ferrett, Colin George; Llewelyn, Andrew Humphrey; Loktionov, Alexandre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a device for collecting a sample of exfoliated cells from a colorectal mucosal surface of a human subject which comprises a colorectal insertion member (1) having a distal insertion end , (2), a proximal end (34) and a closable interior cavity (3) a flexible , membrane having an outer, cell sampling surface (5) and an inner surface wherein said membrane is sealingly attached to the distal insertion end of , said insertion member and held within the interior cavity such that, in use, pressurisation of the interior cavity to at least a first elevated pressure causes the membrane to emit from the distal end of said insertion member to make contact with 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 July 6, 2005 and granted December 6, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 6, 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.