A sterile hollow barrel fitted with a threaded plunger and a pressure gauge, designed to place an embolic implant in the body. The device provides precise pressure control for the preparation (purging) and release of an implantable device after it has been surgically positioned at the target site using a delivery tube (e.g., an appropriate catheter). The plunger has a locking mechanism for added control, and the device comes equipped with a flexible, high-pressure extension tube. The pressure gauge will typically facilitate settings for purging, implant placement, and detachment (launch). This is a single-use device.