Surgical stapler and staple cartridge
CA 2122772 A1 · Owner: Huitema, Thomas W. · Inventors: Huitema, Thomas W.; Williamson, Warren P. Iv; Chambers, James H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surgical stapler comprising at least one cam having a cam surface, an arrangement for actuating the cam for a longitudinal firing movement of the cam surface, a cartridge having a plurality of staple drive members driven by the longitudinal movement of the cam surface, and a plurality of surgical staples respectively associated with the staple drive members for being fired by the longitudinal movement of the cam surface. In one embodiment of the present invention the staple drive members include at least a pair of alternating first and second staple drive members the, first staple drive member including a laterally spaced pair of staple driving surfaces, the second staple drive member …
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 May 3, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 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.