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Expired Canadian patentCanada

Single pass a-v lead

CA 1183906 A · Owner: Medtronic, Inc. · Inventors: Stokes, Kenneth B.

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

A single-pass body implantable lead for transvenous insertion through a single vein to simultaneously sense and/or stimulate the tissue of both the right atrium and right ventricle. The lead employs a single bifurcated connector at the proximal end. Insulated conductors for the ventricle and atrium are branched from a single outer sheath. The ventricular and atrial branches are established in fixed relation to one another. The ventricular branch is of sufficient length that it has excess length for the largest heart. The electrode of the ventricular branch is held within the right ventricular apex by tines. The atrial branch has a "J" shape imparted to the conductor coil. The atrial …

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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 March 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 12, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 1, 1982
GrantedMarch 12, 1985
Term endedMarch 12, 2002
Patent numberCA 1183906 A
Classification (IPC)A61N1/18 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedFeb 1, 1982Patent grantedMarch 12, 1985Term endedMarch 12, 2002

Sources & verification

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