Surgical fasteners, applicator instruments, and methods for deploying surgical fasteners
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United States of America Patent
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May 20, 2014
Grant Date -
Nov 18, 2010
app pub date -
May 12, 2009
filing date -
May 12, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A firing system for an applicator instrument adapted to dispense surgical fasteners includes a housing, an elongated shaft extending from the housing, a firing rod disposed within the elongated shaft, a firing rod release engageable with the firing rod for preventing distal movement of the firing rod during at least one stage of a firing cycle, a trigger mounted to the housing, and a firing spring having a first end connected with the firing rod and a second end adapted for being sequentially coupled and decoupled from the trigger during the firing cycle. The firing cycle includes an initial stage in which the trigger is open and decoupled from the energy storing element, and the firing spring is at least partially compressed, and a piloting stage during which the firing rod release is disengaged from the firing rod for enabling distal movement of the firing rod.
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