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Expired Canadian patentCanada

Position sensing system for orthopedic applications

CA 2499457 C · Owner: Reznick, David · Inventors: Shalgi, Avi; Reznick, David; Pesach, Susel

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Abstract From the Canadian patent

A surgical tracking system includes a wireless position sensor which is adapted to be implanted in a bone of a subject and responsively to externally-applied magnetic fields within a working volume of the tracking system to generate and transmit sensor signals indicative of coordinates of the position sensor within the bone. A plurality of field generator coils are adapted to generate the magnetic fields so as to define the working volume. The field generators are fixed in predetermined locations to a reference structure which is movable relative to the subject in order to position the working volume so as to intercept the bone. A system controller is coupled to receive and process the …

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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

  • Filed March 4, 2005 and granted November 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 4, 2005
GrantedNovember 12, 2013
Term endedMarch 4, 2025
Patent numberCA 2499457 C
Classification (IPC)A61B5/06 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 4, 2005Patent grantedNov 12, 2013Term endedMarch 4, 2025

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