Endoscope videocoupler for three dimensional visualization
CA 2268934 A1 · Owner: Kazakevich, Yuri E. · Inventors: Kazakevich, Yuri E.; Mihalca, Gheorghe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stereoscopic imaging device is described that attaches to an instrument such as an endoscope or a borescope, which is characterized by an exit pupil in the vicinity of its proximal region. The imaging device includes a dual aperture plate and an optical switch that are disposed within a housing that attaches to the proximal region of the instrument. The dual aperture plate defines right and left, spaced-apart apertures respectively disposed at symmetric locations substantially in the plane of the exit pupil of the instrument. The optical switch alternately blocks light received from the instrument and passsing through the right and left optical channels so that a steroscopic view …
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 October 23, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2019.
- 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.