Surgical handpiece
CA 2264659 C · Owner: Storz Ophthalmics, Inc. · Inventors: Weidenbenner, John Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for controlling a plurality of ophthalmic microsurgical instruments is disclosed. Particularly, the present invention includes a handpiece (1810) for activating a surgical instrument (i.e. such as scissors) connected to the handpiece. The handpiece (1810) includes a housing (1812) and a linear activator (1836) operatively retained within the housing. A nosepiece (1814) is mounted to one end of the housing and is adapted for correction of a linearly actuated surgical instrument. The nosepiece (1814) is fixed to the linear activator (1836) in a preselected calibrated position relative to the longitudinal axis of the linear actuator.
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 August 28, 1997 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 28, 2019.
- 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.