Apparatus for laser light medical treatment
CA 1189913 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Kubo, Kiyoshi; Ohshiro, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laser light medical-treatment apparatus has a contact detection means comprising a pair of contact tips 16a 16b, on both sides of a laser light emission hole 6 so that when the hand set 1, 30 of the apparatus is applied on a skin of patient. The contact tip detects touching on the skin by means of a small conduction current thereacross thereby closing a switching circuit 46 44 to actuate, the laser 4 to oscillate. Besides warning sound means, 8 and warning lamp means 7 are provided so as to warn light beam emission of the laser, which light is invisible and dangerous to a human eye.
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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
- Granted July 2, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2002.
- 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.