Horn used in an ultrasonic surgical operating instrument
CA 1308327 C · Owner: Noguchi, Yasuo · Inventors: Inoue, Naohiko; Noguchi, Yasuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A horn used in an ultrasonic surgical operating instrument for crushing and removing organic tissue comprises a horn body vibrated by ultrasonic vibration source for crushing the organic tissue a, removing passage extending through the horn body through which the crushed tissue is removed outside a, bulkhead disposed in the removing passage and at least, one through hole formed in the bulkhead. The bulkhead and the hole cooperate with each other to reduce a cross-sectional area the removing passage.
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
- Granted October 6, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 2009.
- 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.