Plate holding drill guide and trocar and method of holding a plate
CA 2198268 C · Owner: Hearn, James P. · Inventors: Hearn, James P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plate holding drill guide or "trocar" is disclosed including a member having a channel with an internal diameter. A cannulated holding member having prongs is disposed at least in, part, within the channel. A cannula extends through the prongs. At one end the prongs are flanged outward. The flanged portion has an external diameter which is greater than the internal diameter of the channel. The sliding member is displaceable over the flanged portion of the prongs. When an annular frame of a bone plate is disposed between the prongs and the sliding member is moved toward the flanged portion, the prongs grip the frame. A drill may be guided between the prongs through the cannula. A method is …
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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 February 21, 1997 and granted May 1, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 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.