Surgical instrument having a bipolar end effector assembly and a deployable monopolar assembly
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United States of America Patent
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Jun 5, 2018
Issued Date -
Mar 17, 2016
app pub date -
Jul 17, 2015
filing date -
Sep 17, 2014
priority date (Note) -
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Abstract
A deployment and retraction mechanism for a surgical instrument includes a gear box defining a longitudinal slot, a slider, a ring gear, and a planet gear. The slider is configured to engage a deployable component of the surgical instrument and is translatable along the longitudinal slot between a proximal end, corresponding to a storage condition of the deployable component, and a distal end, corresponding to a use condition of the deployable component. The planet gear is operably engaged with the ring gear and configured to orbit within the ring gear. The planet gear includes an off-center pin rotatably supporting the slider thereon. The planet gear and ring gear are configured such that a one-half orbit of the planet gear within the ring gear translates the slider from one end of the longitudinal slot to the other end of the longitudinal slot.
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