Endoscope scope assembly for full hemisphere view
CA 2094631 A1 · Owner: Middle, George H. · Inventors: Bornhop, Darryl J.; Clayton, John Bradley; Middle, George H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A scope assembly for an endoscope adapted for use with a portal cannula to provide a generally hemispherically shaped field of view within the body. The scope assembly includes a guiding cannula adapted for rotation within the portal cannula. A distal end of the guiding cannula is bent or offset from a longitudinal axis of the scope assembly. A bendable scope is mounted within the guiding cannula and is adapted for rotation within the guiding cannula. A GRIN lens located at a distal or viewing end of the bendable scope is also offset from the longitudinal axis of the bendable scope such that upon rotation of the guiding cannula or bendable scope a generally hemispherically shaped field of …
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 April 22, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2015.
- 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.