US Patent 11051827 Endoscopic surgical instrument and handle assemblies for use therewith

A handle assembly for use with a surgical instrument includes a housing, a movable handle, and a plunger assembly. The plunger assembly is disposed at least partially within the housing. The plunger assembly includes a proximal portion defining a longitudinal axis, a distal portion and a biasing element. The biasing element is positioned between a part of the proximal portion and a part of the distal portion. Distal translation of the distal portion of the plunger assembly relative to the housing is configured to affect a function of the surgical instrument.