Preparation of a selection of control variables for a dose distribution to be regulated in a technical appliance
CA 2464200 A1 · Owner: Kuefer, Karl-Heinz · Inventors: Trinkaus, Hans; Kuefer, Karl-Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a planning tool for the interactive selection of control variables (x1, y7, .alpha.1, .alpha.2 .alpha.3, I1, I2) of a , radiation therapy plan from a database (1) comprising a plurality of precalculated solutions. Each solution represents a radiation therapy plan which from a technical point of view, consists of a plurality of control variables or instructions. Each solution also has characteristic values for radiation doses for a target volume (T, Target) and at least one risk volume (risk organ, h1, h2, h3) which are stored in the database (1). A plurality of axes are visibly represented on a display device (3; 3a 3b) as radiation dose , scales (30, 31 32, …
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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 October 21, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2024.
- 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
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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.