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Expired Canadian patentCanada

Tandem independently inflatable/deflatable multiple diameter balloon angioplasty catheter systems and method of use

CA 1318206 C · Owner: Jang, G. David · Inventors: Jang, G. David

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

Abstract, Disclosed is a catheter for performing balloon angioplasty, which includes an elongate flexible catheter, shaft having a plurality of lumens therethrough: a plurality of imperforate angioplasty balloons physically connected to the shaft, with the interior of each of the balloons in fluid communication with a different one of the lumens for separate inflation and deflation each of the, balloons having an inflatable portion and a predetermined maximum inflated diameter and being formed of nonelastomeric material, the balloons being capable of substantially maintaining the predetermined maximum inflated diameter at inflation pressures of 100 psi; wherein the balloons are …

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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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 9, 1987
GrantedMay 25, 1993
Term endedMay 25, 2010
Patent numberCA 1318206 C
Classification (IPC)A61M25/10 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedSep 9, 1987Patent grantedMay 25, 1993Term endedMay 25, 2010

Sources & verification

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