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Expired Canadian patentCanada

Apparatus and method for imaging small cavities

CA 1306050 C · Owner: Eberle, Michael J. · Inventors: Stephens, Douglas N.; Zanelli, Claudio; Eberle, Michael J.

CIPO record

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Abstract From the Canadian patent

An in vivo imaging device is provided for producing real-time images of small, moving or stationary cavities and surrounding tissue structure. The imaging device includes a probe assembly of very small dimensions and preferably sufficiently small to fit within cavities having a diameter on the order of that of a human coronary artery. The probe assembly may be mounted to a positioning device such as a catheter, which allows for the use of, for example, conventional guiding catheters and guide wires.

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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 August 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 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.
FiledOctober 26, 1988
GrantedAugust 4, 1992
Term endedAugust 4, 2009
Patent numberCA 1306050 C
Classification (IPC)A61B8/12 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedOct 26, 1988Patent grantedAug 4, 1992Term endedAug 4, 2009

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