Trigger assembly for tympanostomy tube delivery device
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United States of America Patent
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Apr 28, 2020
Grant Date -
Jul 27, 2017
app pub date -
Feb 7, 2017
filing date -
Jul 15, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A tympanostomy tube delivery device comprises a shaft assembly, a pressure equalization tube, and a trigger assembly. The shaft assembly comprises a cannula and a pusher operable to translate relative to the cannula. The pressure equalization tube is positioned within the shaft assembly. The pusher is operable to drive the pressure equalization tube out of the shaft assembly. The trigger assembly includes a pair of pushbuttons and a linkage. The pushbuttons are secured to the device via living hinges and are selectively pivotable. The linkage is configured to engage the delivery device to thereby selectively prevent actuation of the delivery device. The pivoting of one or both the pushbuttons is configured cause the linkage to collapse so as to disengage the delivery device and thereby actuate the delivery device.
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