An<unk>  is a small, impermeable multi-layered sheet with high absorbency that is used in the<unk>  and health-care industries as a precaution against urinary<unk> . It is generally made of cotton if washable or paper if disposable.<unk>  diapers (or<unk>  nappies) are a common<unk> .<unk> s are usually placed in an undergarment or on a bed or chair under a person.<unk> s are manufactured in light and heavy grades which offer a range of absorbencies, often referred to as a 'working capacity', which refers to the true absorbency an<unk>  offers when in use. These sorts of<unk> s can come as panty-liners, inserts,<unk> s or even available as replacement underwear. In the UK, chair or bed based protective<unk> s, known as chair<unk> s or bed<unk> s, are commonly used in healthcare settings where<unk>  may be an issue. They are usually constructed in layers of quilted absorbent fabric and alternating liquid impermeable plastic or polyurethane. Products containing polyurethane are generally considered better as they provide a waterproof backing, whilst still allowing air to circulate reducing the risk of rashes and sores.
Incontinence pad
Artificial urinary sphincter
Artificial urinary bladder
Foley catheter
Macy catheter
Perineal dilator
Bladder augmentation
Penrose drain