Thermal therapy pad with variable heat control
US6893453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Apr 14, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/0276
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There is provided a thermal therapy pad useful in relieving pain and having a plurality of easily removable layers on the side of the pad normally facing the skin. The removal of layers results in increased heat removal or delivery to the skin. The removable layers may be re-attached desirably the user find the pad too hot, or may be moved to the opposite side of the pad, or discarded. The pad may use an iron powder reactive core which reacts exothermically with air to provide heating or water and other reactants that react endothermically. More than one core may be used to further tailor the amount and rapidity of the temperature change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.