Trocar seal system
CA 2425146 C · Owner: Smith, Robert C. · Inventors: Smith, Robert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A diameter reduction mechanism for a fixed seal trocar employing a movable reduction member pivotally connected with a housing (20). The housing (20) is adapted to be mounted on a proximal end of a valve assembly (120) of the trocar (100). The reduction member (50) defines a hole (71) aligned with a passageway (150) defined by the trocar (100). The hole (71) defines an operable area less than an operable area defined by the passageway (150). The diameter reduction mechanism is configured for the ease of selectively employing the reduction member (50) between a first position reducing the operable area of the passageway (150) and a second position wherein the reduction member (50) …
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 October 19, 2001 and granted January 18, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 2023.
- 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.