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Expired Canadian patentCanada

Angioscope centering catheter

CA 1303450 C · Owner: Chin, Albert K. · Inventors: Chin, Albert K.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An angioscope centering catheter includes an angioscope mounted within an inner catheter for visualization of a vessel at the distal end of the catheter. The inner catheter is mounted within an outer heath for sliding longitudinal movement with respect to the outer sheath. The outer sheath includes a set of longitudinal slitted sections formed circumferentially near its distal end. The outer sheath and the inner catheter are connected at their distal ends such that when the catheter moves proximally with respect to the outer sheath, the slitted sections splay out from the axis of the catheter to center the viewing and of the angioscope. A deflector shield may he provided at the distal end …

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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 June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 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.
FiledNovember 7, 1988
GrantedJune 16, 1992
Term endedJune 16, 2009
Patent numberCA 1303450 C
Classification (IPC)A61B1/00 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedNov 7, 1988Patent grantedJune 16, 1992Term endedJune 16, 2009

Sources & verification

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