The invention generally relates to an implantable, tunable, and bioresorbable medical device for nerve stimulation within a body of a patient for pain management. The medical device includes a substrate, a circuit configured to provide stimulation to a target tissue, and a material surrounding the substrate and the circuit. The system further includes a controller configured to be disposed external to the patient's body and wirelessly communicate with the medical device to provide stimulation to the target tissue when the device is implanted within the patient's body. The substrate, circuit, and encapsulation layer may each include materials and/or have specific dimensions resulting in predictable and controllable resorption rates, such that the medical device may cease to function and completely dissipate within a medically relevant timescale (e.g., after completion of treatment).
