The disclosure relates generally to an extended use systems and devices for management of bladder function for people with urinary dysfunction, The system Includes a catheter which can include a sensor that can determine bladder condition and a valve that can control fluid flow. The catheter can be placed Inside the bladder using devices that facilitate insertion and extraction. The placement of the catheter can be done by a trained individual such as a patient, as well as a clinician, a nurse, or a caretaker, Once placed Inside the bladder, the catheter can be fully-internal, meaning no portion of the catheter is visible from outside of the patients body.