Patent ID: 8747348

Claim:
A method for controlling a portable therapeutic apparatus securable to the body of a patient, the method comprising: providing a therapeutic apparatus comprising: a cradle unit securable to the body of the patient; a patch unit configured for removable connection to the cradle unit, the patch unit comprising at least one housing, a processor and at least one of a fluid delivery pump and an analyte level monitor for sensing an analyte level in the body; and a position detector comprising a patch portion coupled to the patch unit and a cradle portion coupled to or comprising the material of the cradle unit; wherein: the patch portion of the position detector comprises an electro-mechanical switch and the cradle portion of the position detector comprises an associated switch activation area including a protrusion protruding from a surface of the cradle unit to activate the switch upon connection of the patch unit to the cradle unit; the at least one housing of the patch unit comprises at least one resilient portion located proximate the switch to enable pressing of the resilient portion against the switch by the protrusion upon connection of the patch unit to the cradle unit; receiving a position indication signal from the position detector; and determining a physical proximity of the patch portion of the position detector to the cradle portion of the position detector based on the position indication signal.