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Expired Canadian patentCanada

Intramedullary catheter

CA 1324547 C · Owner: Wakeman, Howard M. · Inventors: Kuhn, John G.; Leighton, Paul W.; Wakeman, Howard M.

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

An intramedullary catheter is provided which is attached to a bone to permit the infusion of drugs fluids, or the like, directly into the bone marrow for subsequent dispersion to the vascular system. The present invention contemplates an intramedullary catheter, method of implanting such a catheter and a, method of fluid delivery to the vascular system through the bone marrow. The intramedullary catheter preferably includes a threaded conduit, a head attached to one end of the conduit and a, sealing membrane in the head overlying the conduit. The intramedullary catheter is implanted in a bone such as the iliac, crest, with the conduit threadingly engaging the bone and the surrounding skin …

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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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 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 20, 1988
GrantedNovember 23, 1993
Term endedNovember 23, 2010
Patent numberCA 1324547 C
Classification (IPC)A61M25/00 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedSep 20, 1988Patent grantedNov 23, 1993Term endedNov 23, 2010

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