Rate responsive cardiac pacemaker
CA 1320537 C · Owner: Intermedics Inc. · Inventors: Alt, Eckhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rate responsive cardiac pacemaker for implantation in a patent, includes an activity sensor having a response characteristic limited to the frequency range below 4 Hz for detecting movement of the patient arising from physical exercise and generating an electrical signal representative thereof while discriminating against movement arising from random influences. Means is provided for generating pulses at a controllably variable rate to stimulate the patient's heart at any of a plurality of selectable rates. The pacemaker also includes means responsive to the said electrical signal for adjusting the rate of the pulse generating means relative to a base rate according to whether the patient …
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 July 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 2010.
- 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.