Torque indicator for fixed screw leads
CA 2118962 A1 · Owner: Medtronic, Inc. · Inventors: Morris, Mary M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A body-implantable lead (10) for use in cardiac pacing having a proximal end and a distal end the proximal end, connected to a medical device an active fixation device, such as a helix electrode (330) having a distal end and a proximal end, the tissue securing means extending from the lead body distal end, an electrical conductor (15) extending between the proximal and distal ends of the lead and a longitudinally extending radiopaque marker (35 or 335) affixed to the lead body (10) proximal to the tissue securing means, the radiopaque marker (35 or 335) showing rotational movement or distortion of the radiopaque marker (35 or 335) under fluoroscopy.
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
- Filed March 14, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2016.
- 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.