Seat system for preventing decubiti
US4643481A · kind A · utility
Inventors
Key dates
| Filing date | Nov 8, 1984 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Nov 8, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S297/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A seat system comprised of a base and cushion. The base has a specially contoured support surface including a forward section and a rearward section. The rearward section has a pair of wings surrounding a void over which the user's ischia and coccyx are to be positioned. The void is mushroomed in its cross-sectional shape because the rearmost portion of the wings contain enlargements for providing support to the buttock at the rear. A sloped forward support surface rises forwardly of the void and tapers into a single ridge which continues forwardly to separate a pair of troughs. This forward support surface, together with the wings and rear support surfaces form a "bucket" or bowl-shaped portion of the total seating surface for proper positioning of the ischia and coccyx over the void. The cushion has a peripheral shape matching that of the base, including a void which is mushroomed in cross-sectional shape. Means are provided for securing the cushion to the base with the void of each in approximate registration. The wings of the cushion may be secured in a plurality of positions relatively closer to or further away from one another, thus providing a precise adjustment to the needs…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.