Mattress for retarding development of decubitus ulcers
US5325551A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1992 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Jun 16, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/34
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mattress unit for retarding the development of decubitus ulcers includes a fabric cover having therein a foam material, and includes an inflatable bladder and a control unit disposed within openings in the foam material. The inflatable bladder contains a foam material having spaced holes in it. The control unit includes a pump which can selectively supply pressurized air to the bladder, a valve which can selectively bleed air from the bladder, and a pressure sensor which can determine the current pressure in the bladder. The pressure sensor is coupled to an input of a control circuit which controls the pump and valve. The control circuit receives power from an AC/DC converter and is remotely controlled by a hand-held pendant, the converter and pendant each being physically separate from the mattress unit and being connected to the control circuit by respective cables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.