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Expired Canadian patentCanada

Endocardial, implantable lead for pacemaker

CA 1164956 A · Owner: Reenstierna, Bertil · Inventors: Reenstierna, Bertil

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 endocardial, implantable lead for connection with an implantable pacemaker comprises an electrical conductor adapted, via at least one electrode connected thereto and in contact with the inner wall of the right auricle, to transfer stimulating pulses to the heart or collect heart pulses from the heart. The lead is springbiased along a predetermined portion of its length to assume a curved shape, which predetermined portion contains the electrodes and is adapted to be located in the heart auricle and bear against the inner wall thereof. A withdrawable relatively stiff wire is adapted for straightening of the curved shape of the predetermined portion before and during insertion of 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

  • Granted April 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 2001.
  • 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 16, 1980
GrantedApril 3, 1984
Term endedApril 3, 2001
Patent numberCA 1164956 A
Classification (IPC)A61N1/04 +1 more

Timeline

Timeline From CIPO dates

1981198419871990199319961999Application filedDec 16, 1980Patent grantedApril 3, 1984Term endedApril 3, 2001

Sources & verification

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