A device for implanting dermal filler thread into subcutaneous tissue or the dermis of a patient, the device comprising: a housing configured to contain the dermal filler thread; a hypodermic needle including a tube for receiving the dermal filler thread and an aperture on a distal end of the hypodermic needle forming an opening of the tube on the distal end of the hypodermic needle; a rod, a portion of which is sized to fit within the tube and configured to apply a force to the dermal filler thread as a portion of the dermal filler thread is discharged out of the hypodermic needle through the opening of the tube; and either a needle cartridge configured to hold a plurality of hypodermic needles preloaded with dermal threads; the rod further comprising: an outer cylinder of a size larger than a diameter of the tube of the hypodermic needle and configured to apply a force to a hypodermic needle of the plurality of hypodermic needles in the needle cartridge, the outer cylinder including a hollow region that extends through the length of the outer cylinder; an inner cylinder configured to move within the hollow region of the outer cylinder and apply a force to the dermal filler thread preloaded into the hypodermic needle of the plurality of hypodermic needles or a dermal thread cartridge configured to hold a plurality of dermal filler threads; an internal taper guide configured to guide one of the plurality of dermal filler threads held by the dermal thread cartridge into the tube as a force is applied to the one of the plurality of dermal filler threads by the rod. a housing configured to contain the dermal filler thread; a hypodermic needle including a tube for receiving the dermal filler thread and an aperture on a distal end of the hypodermic needle forming an opening of the tube on the distal end of the hypodermic needle; a rod, a portion of which is sized to fit within the tube and configured to apply a force to the dermal filler thread as a portion of the dermal filler thread is discharged out of the hypodermic needle through the opening of the tube; and either a needle cartridge configured to hold a plurality of hypodermic needles preloaded with dermal threads; the rod further comprising: an outer cylinder of a size larger than a diameter of the tube of the hypodermic needle and configured to apply a force to a hypodermic needle of the plurality of hypodermic needles in the needle cartridge, the outer cylinder including a hollow region that extends through the length of the outer cylinder; an inner cylinder configured to move within the hollow region of the outer cylinder and apply a force to the dermal filler thread preloaded into the hypodermic needle of the plurality of hypodermic needles or an outer cylinder of a size larger than a diameter of the tube of the hypodermic needle and configured to apply a force to a hypodermic needle of the plurality of hypodermic needles in the needle cartridge, the outer cylinder including a hollow region that extends through the length of the outer cylinder; an inner cylinder configured to move within the hollow region of the outer cylinder and apply a force to the dermal filler thread preloaded into the hypodermic needle of the plurality of hypodermic needles or a dermal thread cartridge configured to hold a plurality of dermal filler threads; an internal taper guide configured to guide one of the plurality of dermal filler threads held by the dermal thread cartridge into the tube as a force is applied to the one of the plurality of dermal filler threads by the rod.