US Patent 10362866 Methods for controlled dispensing

Devices and methods for controlled dispensation are described herein where such an assembly may generally comprise an index plate having one or more protrusions extending from a surface of the plate, a first actuator configured to translate the plate in a first direction, and a second actuator configured to translate the plate in a second direction different from the first direction. The one or more protrusions may define one or more rows which are arranged upon the plate in a collinear arrangement and may further define one or more columns which are arranged upon the plate at an angle relative to a proximal or distal edge of the plate such that each protrusion is off-set relative to an adjacent protrusion along the column.