Apparatus, system, and method for selective stimulation

A method of treating sleep apnea using neurostimulation to control the position of a patient's tongue, comprising the steps of:

• implanting an electrode having a plurality of contacts into the patient to electrically couple the plurality of contacts to a Hypoglossal nerve of the patient;
• implanting an implantable pulse generator (IPG) into the sub-mandibular space of the patient, the IPG being electronically coupled to the electrode, the IPG comprising a symmetrical, chevron-shaped molded body having an apex at a distal end of the IPG, a coil at the apex of the chevron-shaped molded body, and an electronics enclosure at least partially integral with the chevron-shaped molded body and proximal to the coil, a first lead extending from the electronics enclosure and along a first leg of the chevron-shaped molded body, and a second lead extending from the electronics enclosure and along a second leg of the chevron-shaped molded body, the first leg extending proximally and laterally from a first side of the electronics enclosure, and the second leg extending proximally and laterally from a second side of the electronics enclosure opposite the first side of the electronics enclosure;
• and
• programming the IPG to deliver at least two electric signals to the plurality of contacts during a therapy session without taking into account a timing of respiration.