Radiographic gantry with software collision avoidance
CA 2172505 C · Owner: Szejna, Glenn · Inventors: Hinton, Corydon A.; Szejna, Glenn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Computer control of a multi-axis radiographic instrument (10) is utilized to prevent contact between moving surfaces of the instrument based on soft limits. The soft limits are established from a legal space table (51) incorporating all combinations of axis movement of the equipment and relating those combinations to contacting (53) or non-contacting (55) surfaces. The legal space table (51) may be used to map efficient paths between a start (sp) and ending position (dp) and may be augmented with non-contacting transducers (57) which may sense patient movement not incorporated into the legal space table (51).
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 July 14, 1995 and granted June 8, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2017.
- 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.