Thermal blanket
US5324320A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1991 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | May 20, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/0268
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A thermal blanket includes an inflatable covering with a head end, a foot end, two edges and an undersurface. The covering is inflated through an inlet at the foot end by a thermally-controlled inflating medium. An aperture array on the undersurface of the covering exhausts the thermally-controlled inflating medium from the covering. Exhaust port openings are provided at the edges of the covering to vent the inflating medium, which enhances circulation of the thermally-controlled medium through the cover. An uninflatable section is provided at the head end, together with an absorbent bib attached to the covering, adjacent the uninflatable section. When inflated, the thermal blanket self-erects and provides a bath of thermally-controlled inflating medium to the interior of the erected structure. The enhanced circulation of the medium through the covers maintains a relatively high average temperature under the blanket and a relatively uniform distribution of temperature in the inflating medium which is exhausted through the apertures into the structure's interior. When the structure covers a patient, the uninflatable section provides a relatively unobstructed view of the patient's fa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.