Delivery device with cam driven peristaltic pump

A delivery device for delivering a medicament to a patient, said delivery device comprising:

• a housing having an interior cavity and a base enclosing said cavity, a reservoir within said cavity for containing the medicament, a delivery mechanism having a cannula for delivering the medicament to the patient, said base having a top surface facing said interior cavity with a longitudinally extending recess and a bottom surface configured to attaching to the skin of a user, and a flexible membrane on said top surface covering said recess and forming a fluid channel;
• a pump mechanism in said cavity for directing the medicament from said reservoir to said cannula, said pump mechanism including a cam assembly having a plurality of cam members and a cam follower assembly, said cam follower assembly including a plurality of flexible portions having a protrusion oriented to sequentially deflect said membrane inwardly into said fluid channel to close said fluid channel and force fluid in said fluid channel from an inlet to an outlet of said fluid channel.