Oximetric tonometer with intracranial pressure monitoring capability
CA 2335776 A1 · Owner: Denninghoff, Kurt R. · Inventors: Denninghoff, Kurt R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is disclosed for non-invasive determination of intracranial pressure using an intracranial pressure monitor. The method preferably includes retinal scanning with a retinal scanner of the ocular fundus to determine dioxyhemoglobin saturation within the blood vessels of the retina. Through simultaneous monitoring of the subject cardiac cycle with a cardiac cycle monitor during retinal scanning and measurement of the intraocular pressure intracranial pressure is determined independent of implanting or adhering the sensing device to the head or neck region of a test subject. The present invention provides valuable diagnostic and postoperative information for medical treatment …
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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 June 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2021.
- 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.