Wetness indicator for alerting a wearer to urination
US7767875B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2001 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Oct 16, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/425
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A toilet training wetness indicator for alerting a wearer to urination and a garment incorporating such an element. The toilet training wetness indicator, which may be an insertable wetness indicator or integrated directly into a garment, such as training pants, comprises a liquid permeable enclosure having a liquid absorbent body enclosed therein. The liquid absorbent body absorbs liquid within the pants and applies hydraulic pressure to the enclosure upon absorption of a preselected amount of liquid. The enclosure limits expansion of the absorbent body so that the wetness indicator stiffens as liquid is absorbed. The wetness indicator has a first stiffness and is relatively pliable when dry and a second stiffness greater than the first stiffness upon absorption of the preselected amount of liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.