Detrusor Nerve Radiofrequency Ablation for Overactive Bladder in Women

INCLUSION CRITERIA: * Female, aged 22 to 80 years inclusive at the time of consent. * History of idiopathic overactive bladder (OAB) symptoms for ≥6 months. * At least 7 episodes of urge urinary incontinence (UUI) over 3 days, as recorded in a 3-day bladder diary during screening. * Urge-predominant incontinence, defined as greater number of UUI episodes than stress urinary incontinence (SUI) episodes during screening. * Willing and able to complete the 3-day bladder diary. * Willing to discontinue OAB medications (e.g., anticholinergics, beta-3 agonists) at least 2 weeks prior to baseline treatment visit, if currently taking such medications. * Willing to use a reliable method of contraception during the study period, if of childbearing potential and sexually active. * Negative pregnancy test at screening (if applicable). * Willing and able to provide written informed consent and comply with study procedures and follow-up schedule. EXCLUSION CRITERIA: * Predominant stress urinary incontinence (SUI) based on bladder diary * Currently pregnant, breastfeeding, or planning pregnancy during the study * History of neurologic conditions affecting bladder function (e.g., multiple sclerosis, spinal cord injury, Parkinson's disease) * Active urinary tract infection (UTI) at screening * History of interstitial cystitis, bladder pain syndrome, or chronic pelvic pain * Prior or current bladder cancer, pelvic malignancy, or pelvic radiation * Pelvic organ prolapse beyond the hymen (POP-Q stage \> II) * Implanted neuromodulation device or prior sacral nerve stimulation * Use of bulking agents, Botox, or surgical treatment for incontinence within 12 months * Prior pelvic floor RF treatment or laser vaginal rejuvenation * Significant pelvic anatomical abnormalities that interfere with treatment * Use of investigational drug or device within 30 days before screening * Any condition that, in the investigator's opinion, would interfere with safe study participation or data integrity * Uncontrolled systemic disease (e.g., uncontrolled diabetes, cardiovascular disease) * Inability or unwillingness to comply with study requirements or follow-up