Alternating pressure pad
US5109561A · kind A · utility
26Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Aug 23, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G7/05776
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An alternating pressure pad having at least two sets of alternately inflatable cells, with each cell having a height greater than its width. Each cell having at least one internal membrane arranged to restrict the shape of the cell and divide the cell into two communicating regions wherein the width of the lower of the two regions is greater than the width of the upper of the two regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.