Apparatus for the fragmentation and aspiration of ocular tissues
CA 1196830 A · Owner: Gorkovsky Gosudarstvenny Meditsinsky Institut Imeni S.M. Kirova · Inventors: Kossovsky, Leopold V.; Kravchuk, Jury K.; Slavinsky, Zinovy M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for the fragmentation and aspiration of ocular tissues consists of a controlled ultrasonic generator connected to a magnetostriction converter to produce mechanical ultrasonic vibrations transmitted therefrom to a hollow needle joined thereto. The end of the needle opposing its other end connected to the magnetostriction converter is adapted to be brought into contact with the ocular tissue under fragmentation and comprises an end wall portion (II) with a through opening (12) having a diameter substantially between 1/3 and 2/3 of the diameter of a needle bore (7'). Outer surface (14) of the needle can be fashioned into a cone or a cylinder.
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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 November 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 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
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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.