Apparatus and method for controlling a patient positioned upon a cushion
US5926883A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Jun 11, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S5/905
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention details a pressurizable mattress. The mattress has at least one inflatable cushion having a pair of sides, and at least one set of an electromagnetic energy emitting device and an electromagnetic energy receiving device. The electromagnetic energy emitting device, when operating, illuminates the interior of the inflatable cushion. The electromagnetic energy receiving device collects the illuminating energy. The operation of the mattress requires a means for measuring the optical aperture of the inflatable cushion. The measuring means determines the optical aperture of the inflatable cushion by measuring the quantity of illuminating energy collected by the electromagnetic energy receiving device when the electromagnetic energy emitting device illuminates the interior of the inflatable cushion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.