Subcutaneous spiral electrode for sensing electrical signals of the heart
CA 2426328 A1 · Owner: Schindeldecker, William · Inventors: Brabec, Scott J.; Brennen, Kenneth R.; Schindeldecker, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An implantable pacemaker is provided with subcutaneous spiral electrodes for sensing electrical signals of the heart. Subcutaneous spirals or spiral electrodes are embedded individually into three or four recessed casings placed in a compliant surround that is attached to the perimeter of the implanted medical device. The electrodes are electrically connected to the circuitry of the implanted pacemaker and detect cardiac depolarization waveforms displayable as electrocardiographic tracings on an external instrument such as a programmer. The spiral electrode constitutes the proximal end of a continuous wire that upon egress from the recessed casing is insulated using insulative …
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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 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2023.
- 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
Timeline From CIPO dates
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.