Devices and methods for delivering a therapeutic agent to a patient are disclosed herein. In one embodiment, a delivery system includes a reservoir configured to contain a fluid, a first actuator coupled to the reservoir, a second actuator coupled to the first actuator, and an adaptor at least partially disposed between the first actuator and the second actuator. The first actuator and the second actuator are configured to collectively exert a force on the reservoir such that at least a portion of the fluid within the reservoir is communicated out of the reservoir. The adaptor is configured to couple the first actuator and the second actuator.
