Medication fluid delivery device

A method of use of an automatic medication fluid delivery device that is attachable to a body of a user and configured to be used for less than 12 hours, the method comprising:

• providing the automatic medication fluid delivery device including a dispensing unit having a dispenser for delivering the medication fluid to a user and a reservoir for holding the medication fluid;
• filling the reservoir with a variable amount of the medication fluid received from a medication fluid injector used as an auxiliary medication therapy by the user;
• and
• attaching a drive unit to the dispensing unit, the drive unit including a control unit that controls the drive unit and causes the medication fluid in the reservoir to be pumped through the dispenser.

A method of operation of an automatic medication fluid delivery device that is attachable to a body of a user and configured to be used for less than 12 hours, the method comprising:

• providing the automatic medication fluid delivery device including a dispensing unit having a dispenser for delivering a medication fluid to the user and a reservoir for holding the medication fluid;
• receiving a variable amount of the medication fluid in the reservoir from a medication fluid injector used as an auxiliary medication therapy by the user;
• and
• controlling a drive unit of the dispensing unit by a control unit that causes the medication fluid in the reservoir to be pumped through the dispenser.