Vessel sealer and divider
CA 2719879 C · Owner: Sherwood Services Ag · Inventors: James, Jeremy Scott; Shields, Chelsea; Johnson, Kristin D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An endoscopic bipolar forceps for sealing and dividing tissue includes an elongated shaft with opposing jaw members at a distal end. The jaw members are movable relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween. The jaw members include an outer peripheral surface to reduce tissue adherence. A source of electrical energy is connected to each jaw member such that the jaw members can conduct energy through tissue held therebetween to effect a seal. A longitudinally reciprocating knife severs tissue proximate the seal. At least one …
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 January 22, 2002 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2024.
- 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.