Muscle contraction control by intramuscular pressure monitoring
CA 2072131 A1 · Owner: Medtronic, Inc. · Inventors: Grandjean, Pierre-Andre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A technique for monitoring the performance of a skeletal muscle (22) used in a cardiac assist system. The skeletal muscle is surgically wrapped about the heart (100) the descending aorta (102), or a chamber connected in series with or parallel to the descending aorta (102) to provide direct assistance when electrically stimulated to correspond with naturally or artificially paced heart contractions. The skeletal muscle (22) must be conditioned to perform constant contraction/relaxation within the range of normal heart rates. This conditioning occurs over a length of time which is too long to be directly managed by medical personnel in a sterile environment except experimentally. The …
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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 December 4, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2012.
- 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.