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Expired Canadian patentCanada

Methods and systems for retrograde perfusion in the body for curing it of a disease or immune deficiency

CA 1301002 C · Owner: Calderon, Reynaldo · Inventors: Calderon, Reynaldo

CIPO record

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Abstract From the Canadian patent

Abstract Catheter feedback methods and systems are disclosed for optimizing the infusion of a drug, such as a chemotherapeutic agent via retrograde perfusion through the venous side of the vascular network to a selectively determined portion of a solid tumor. Monitoring and regulatory capability are provided for controlling the outflow of the drug and thereby for controlling the dose rate, the duration of exposure of the drug the leakage, factor, and the level of systemic toxicity all critical, factors in the successful treatment of solid tumors. A feedback loop for practicing the method comprises two concentric balloon catheters capable of extensive maneuvering and selective placement …

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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 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 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.
FiledDecember 18, 1987
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1301002 C
Classification (IPC)A61M1/00

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedDec 18, 1987Patent grantedMay 19, 1992Term endedMay 19, 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.