Shut-off timer for a heating blanket
US8624164B2 · kind B2 · utility
33Cited by
43References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2008 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Aug 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blanket for warming patients during surgery and other medical procedures. The blanket includes one or more temperature sensors and a shut-off timer to prevent prolonged exposure of excessive heat to a patient. Embodiments of the present invention provide a safety feature that cuts power to a heating blanket after a certain period of time has elapsed, irrespective of the feedback provided by a temperature sensor concerning the blanket temperature. That period of time is longer than it takes for the blanket to reach its threshold temperature but shorter than it takes to cause thermal burn injury.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.