There are two types of<unk> s: * The<unk>  with a balloon reservoir (3-component): cuff, pump and balloon. The cuff is placed around the urethra; the pump is inserted in the scrotum and the balloon reservoir is implanted in the retropubic space – between bladder and iliac vein. The pressure in the hydraulic circuit is generated by the elastic balloon reservoir and from retropubic pressure. * The<unk>  with a spring (2-component): cuff and pump unit. The cuff is placed around the urethra and the pump unit is inserted in the scrotum. The pressure in the hydraulic circuit is generated by the spring of the pump unit. The pressure in the retropubic space does not have any influence for this type of<unk> . The common theme among currently available designs is a mechanical constriction mechanism – an inflatable cuff filled with sterile saline solution and placed around the urethra which keeps the urethral lumen closed; this is due to the pressure produced inside the device and an externally accessible control pump mechanism placed between two skin layers of the scrotum (subdartos pouch) which allows the user to manually relieve the constriction to allow urination.
Artificial urinary sphincter
Artificial urinary bladder
Incontinence pad
Urinary diversion
Bladder training
Bladder augmentation
Perineal dilator
Foley catheter