Electroactive polymer-based actuation mechanism for circular stapler
CA 2561544 C · Owner: Shelton, Frederick E. Iv · Inventors: Swayze, Jeffrey S.; Hueil, Joseph Charles; Ortiz, Mark S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and devices are provided for actuating and/or articulating a circular stapler. In one exemplary embodiment a circular stapler is provided having an elongate shaft with a stapling apparatus coupled thereto. An electrically expandable and contractible actuator such as an electroactive polymer actuator can be used to pivotally or angularly adjust a position of the stapling apparatus relative to the elongate shaft by delivering energy to the electroactive polymer actuator. In another embodiment an electroactive polymer actuator can be used to actuate the stapling apparatus thereby driving one or more staples, preferably in a substantially curved pattern into tissue. The actuator can …
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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 28, 2006 and granted July 22, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.