Patent ID: 8622974

Claim:
A plunger-driven feeding tube delivery device for injecting an ingestible material into a feeding tube, the device comprising: a device body defining a first chamber, a second chamber and an exit orifice; a first plunger disposed in the first chamber, the first plunger being moveable between a first retracted position and a first depressed position, the first plunger defining a first plunger recess; a second plunger disposed in the second chamber, the second plunger being moveable between a second retracted position and a second depressed position, the second plunger defining a second plunger recess having an interlock engagement surface; a pivotable interlock disposed on the device body between the first and second plungers; a pivot disposed on the device body, the pivotable interlock being pivotally attached to the pivot; the pivotable interlock including a first interlock end projecting toward the first plunger recess and a second interlock end projecting toward the second plunger recess; and the second interlock end engaging the interlock engagement surface when the second plunger is in the second retracted position, wherein the pivotable interlock engages and prevents movement of the second plunger from the second retracted position to the second depressed position until the first plunger is moved to the first depressed position.