Tissue gripping apparatus for use with a cannula or trocar assembly
CA 2106237 A1 · Owner: Green, David T. · Inventors: Green, David T.; Smith, Robert C.; Tovey, H. Jonathan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tissue gripping apparatus is provided including a cylindrical member positioned about a tubular body portion or cannula. The cylindrical member includes a plurality of articulated arms that are movable between engagable and nonengagable positions. A hinge proximal the midpoint in the articulated arms enhances the tissue gripping abilities of the apparatus. The apparatus also includes an external sealing device having a flange at a distal end such that the flange is positionable against a patient's body. The flange provides a sealing effect such that gases from the body cavity will not escape, for example, during surgical procedures requiring insufflation. The sealing device may also …
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 September 15, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 2015.
- 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.