Hydration and topography tissue measurements for laser sculpting
CA 2684415 A1 · Owner: Clapham, Terrance N. · Inventors: Clapham, Terrance N.; Shimmick, John Karl; Caudle, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved systems, devices, and methods measure and/or change the shape of a tissue , surface, particularly for use in laser eye surgery. The invention generally takes advantage , of fluorescence of the tissue at and immediately underlying the tissue surface. The , excitation energy can be readily absorbed by the tissue within a small tissue depth, and , may be provided from the same source used for photodecomposition of the tissue. The , invention can also take advantage of changes in the fluorescence spectrum of a tissue in , correlation with changes in the tissue's hydration.
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 27, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 27, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2022.
- 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.