Computer-aided positioning method and system
CA 2334495 A1 · Owner: Cedara Software Corp. · Inventors: Sati, Marwan; Fu, Liqun; Tate, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus are disclosed for ascertaining the trajectory of an object, in relation to an anatomical structure for use with computer assisted surgery by, identifying at least three landmarks associated with the anatomical structure in an, operative area; defining a first plane using at least two landmarks; defining a, second plane using at least two landmarks wherein at least one landmark is, different said second plane being orthogonal to the first plane such as to , define a, three dimensional coordinate system; and using the coordinate system to ascertain the trajectory of any object with respect to the anatomical structure. Exposure to imaging radiation and additional …
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 February 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2023.
- 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.