Visually directed trocar and method
CA 2176565 C · Owner: Kaali, Steven G. · Inventors: Kaali, Steven G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is a new and improved laparoscopic trocar (21) and sleeve assembly in which the trocar (21) is provided with a transparent tip (22) that can include a blade edge (78) and accommodates a light telescope (24) for supplying a video console so that while, the trocar (21) is being surgically inserted through the abdominal wall and into the abdominal cavity visualization on the video console, will be possible to avoid injury to blood vessels in the abdominal cavity or injury to any of the internal organs located in the abdominal cavity. A handle (32, 33) provided on the trocar (21) facilitates manipulation and control of the trocar tip (22) penetration. Once clear visualization is …
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 July 29, 1994 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2016.
- 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.