Sensing algorithm for anti-tachycardia devices using dual chamber sensing
CA 2109035 C · Owner: Akhtar, Masood · Inventors: Akhtar, Masood
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An algorithm for classifying cardiac arrhythmias comprising multiple stages and dual chamber sensing. A first stage includes the steps of comparing ventricular and atrial rates and declaring that the heart is in atrial tachycardia or atrial fibrillation on the one hand or that the heart is in ventricular fibrillation on the other hand. The second stage is entered if no determination is made in the first stage and in particular, when the atrial rate equals the ventricular rate. A third stage is entered in which the heart is paced (ventricular atrial or both) at a predetermined rate for a set period of time. Cardiac rhythm classification is made based on heart responses during and after …
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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 October 22, 1993 and granted April 29, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.