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Expired Canadian patentCanada

Devices and methods to facilitate cannulation of an arteriovenous fistula

CA 2620020 C · Owner: Cull, David L. · Inventors: Cull, David L.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present disclosure is directed to a device for locating a fistula. The device can include a first tine and a second tine each having a distal end and a proximal end with the first tine spaced a distance from the second tine sufficient for allowing a section of a fistula to fit therebetween. A compression member can be placed adjacent to the first tine and the second tine such that the compression member externally compresses and temporarily occludes a fistula thereby increasing blood pressure in a section of a fistula located between the first tine and the second tine.

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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 August 22, 2006 and granted April 21, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2026.
  • 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.
FiledAugust 22, 2006
GrantedApril 21, 2015
Term endedAugust 22, 2026
Patent numberCA 2620020 C
Classification (IPC)A61B5/02

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 22, 2006Patent grantedApril 21, 2015Term endedAug 22, 2026

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.