An implantable medical device comprises a medical component configured for performing a medical function in a patient, an orientation sensitive component including a housing having a cavity, a movable object configured for being displaced within the cavity in response to the change in the direction of a force applied to the movable object, and a plurality of fixed sensors spaced apart within the cavity for sensing a location of the movable object within the cavity, and monitoring circuitry configured for determining the orientation of the implantable medical device based on the sensed location of the movable object.
