Laser light irradiation apparatus
CA 2038946 C · Owner: S.L.T. Japan Co. Ltd. · Inventors: Daikuzono, Norio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Laser light irradiation apparatus, which irradiates laser light to living tissues of an animal such as a human body for use an incision vaporization of the living tissues or a thermal therapy and in case of widening a narrow path of the living tissues such as a stricture pare caused by cholesterol formed in the blood vessel of the human body. This laser light irradiation apparatus comprises the plural number of optical fibers and a laser light emitter. The emitter transmits laser light fed from a laser light generator. Then at least, the fore end portions of the optical fibers are exposed to be cores respectively and the exposed cores are surrounded by a clad-material serving as the laser …
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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 September 4, 1990 and granted March 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 4, 2012.
- 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.