Apparatus and method for measuring a plurality of electrical signals from the body of a patient
CA 2375900 C · Owner: Govari, Assaf · Inventors: Govari, Assaf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for measuring electrical signals emanating from a body of a patient and, in particular, from the patient's heart comprises a catheter having an electrode array preferably on its distal end. The apparatus of the invention further comprises a first amplifier for measuring a voltage from a first electrode of the array and a cascade of differential amplifiers each of which measures a voltage difference between two successive electrodes in the array. The voltage. V n at electrode n is given by the expression: (See formula I) wherein a1 is the voltage at the first electrode as measured by the first amplifier and each a i is a differential voltage between electrode i and electrode (i …
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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 11, 2002 and granted September 13, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.