Patent Yard Sign in
Expired Canadian patentCanada

Apparatus and method of defibrillation

CA 1332077 C · Owner: Charms, Bernard L. · Inventors: Charms, Bernard L.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A bi-polar coaxial cable or catheter is passed transvenously into or proximate the heart and the electrodes, or poles of the cable are so positioned to apply electrical energy to the heart for defibrillation. Electrical energy input to the cable to effect defibrillation is in the form of a Lown wave. The invention also relates to a defibrillation method. A tri-axial cable catheter may be used for detecting fibrillation condition, defibrillation and pacemaker, functions. As space provides in the vein additional leads, may be included in the transvenous catheter for further monitoring and/or signal injecting purposes; and such leads may be of coaxial design. Further, as space provides the, …

Read the whole patent

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 September 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 20, 2011.
  • 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 27, 1989
GrantedSeptember 20, 1994
Term endedSeptember 20, 2011
Patent numberCA 1332077 C
Classification (IPC)A61N1/39 +1 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedFeb 27, 1989Patent grantedSep 20, 1994Term endedSep 20, 2011

Sources & verification

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