Abstract: A formulation delivery system includes a cartridge, a control unit, and a stiction breaking element. The cartridge includes a reservoir chamber, a bolus chamber, a reservoir chamber piston, and a bolus chamber piston. The reservoir chamber piston is configured to move within the reservoir chamber to expel formulation from the reservoir chamber into the bolus chamber. The bolus chamber piston is configured to move within the bolus chamber to expel the formulation from the bolus chamber to a patient. The control unit is configured to engage with the cartridge and includes a control configured to activate the reservoir chamber piston or the bolus chamber piston. The piston stiction breaking element is configured to break a stiction between the reservoir chamber piston and the reservoir chamber or between the bolus chamber piston and the bolus chamber.

Abstract: An ocular implantation device comprises a housing having a longitudinal axis, a needle configured to receive an implant, and a plunger and a rod operatively coupled together. The plunger and the rod are disposed in the housing and are collectively, translationally moveable along the longitudinal axis of the housing. The rod is configured to be receivable within at least a portion of the needle to enable the rod to move the implant therethrough. An actuator is operatively engaged with the plunger such that movement of the actuator in a direction aligned with the longitudinal axis of the housing results in the translational movement of the plunger and the rod along the longitudinal axis of the housing in order to deliver the implant through the needle to a target site. An alternative embodiment of an ocular implantation device uses a retractable needle to deliver an implant.

Abstract: An ocular implantation device comprises a housing having a longitudinal axis, a needle configured to receive an implant, and a plunger and a rod operatively coupled together. The plunger and the rod are disposed in the housing and are collectively, translationally moveable along the longitudinal axis of housing. The rod is configured to be receivable within at least a portion of the needle to enable the rod to move an implant therethrough. An actuator is operatively engaged with the plunger such that movement of the actuator in a direction aligned with the longitudinal axis of the housing results in translational movement of the plunger and the rod along the longitudinal axis of the housing in order to deliver the implant through the needle to a target site. An alternative embodiment of the device uses a retractable needle to deliver the implant.