Abstract: 1. A capsule device (100) suitable for swallowing into a lumen of a gastrointestinal tract of a patient and for intestinal delivery of a therapeutic substance from the capsule device, wherein the capsule device (100) comprises: a) a housing portion (110, 115, 120), b) an activation element (130) movable relative to the housing portion from an expanded pre-delivery configuration into a non-expanded delivery configuration, c) a therapeutic substance comprised in a reservoir (A), and d) a delivery assembly comprising an actuator (140) comprising a potential energy source and a delivery outlet (190). The activation element (130) is movable by intestinal wall peristaltic contraction from the ex-panded pre-delivery configuration into the non-expanded delivery configuration to cause the actuator (140) to deliver the therapeutic substance through the delivery outlet (190).

Abstract: A drug delivery device for administration to a subject is provided. In some embodiments, the drug delivery device includes a reservoir containing an active pharmaceutical ingredient and a potential energy source. The drug delivery device also includes a trigger operatively associated with the potential energy source, where the trigger is configured to actuate at a predetermined location within the subject. The drug delivery device also includes a rupturable membrane disposed along a flow path extending between the reservoir and an outlet, where the membrane is configured to rupture when the trigger is actuated. Once the trigger is actuated, the potential energy from the potential energy source may be released to expel the active pharmaceutical ingredient in a jet through the outlet.