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Expired Canadian patentCanada

Bail-out catheter

CA 1294846 C · Owner: Rydell, Mark Anders · Inventors: Rydell, Mark Anders

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract, A catheter for maintaining the patency of a blood vessel damaged during the course of angiography or angioplasty procedures comprising a toroidal coil whose adjacent turns are tightly wound and in contact with one another over a majority of the length thereof but which are separated from one another over a predetermined longitudinal dimension near the distal end thereof. The tightly wound touching coils may be covered with a Teflon coating and when the catheter must be used to maintain patency in a coronary artery it is advanced along the guide wire of an angiography or angioplasty catheter until the open turn portion of the bail-out catheter bridges the site of the damaged …

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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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 5, 1988
GrantedJanuary 28, 1992
Term endedJanuary 28, 2009
Patent numberCA 1294846 C
Classification (IPC)A61M25/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedFeb 5, 1988Patent grantedJan 28, 1992Term endedJan 28, 2009

Sources & verification

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