Direct pull surgical gripper
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United States of America Patent
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May 17, 2016
Grant Date -
Aug 11, 2011
app pub date -
Feb 8, 2010
filing date -
Feb 8, 2010
priority date (Note) -
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Abstract
A surgical end effector includes a clevis and two jaws pivotally coupled to the clevis. A wire is coupled to each jaw and extended through a guide way in the other jaw and through an end of the clevis. The jaws may be opened and closed by pushing and pulling on the two cables. Pulling on each wire creates a closing force in both jaws. A rocking pin may be pivotally supported by the clevis and pivotally coupled to the jaws to constrain the jaws to have opposite motions. The clevis may be coupled to an elongate shaft and the wires extended through the shaft to provide an endoscopic instrument. A wire guide may support the wires in the shaft such that they are able to transmit a compressive force without buckling. The wires may carry electricity to the jaws for electrocautery.
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