Safety control system for a hospital bed
US4882566A · kind A · utility
38Cited by
13References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1988 |
| Grant date | Nov 21, 1989 |
| Priority date | — |
| Expiry date | Aug 3, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/801
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A safety control system for an electrically operated hospital bed utilizes a wireless disconnect signal from an above mounted safety light to an outlet below which supplies electrical power to the bed, thereby to interrupt power to the outlet upon the detection of physical contact with the safety light, as perhaps caused by an IV pole raising with the bed. In a preferred embodiment, a two-way transmission path is utilized to verify no blockage of the line of sight transmission path between the outlet and the light, with power to the outlet being disconnected upon contact with the light or blockage of the line of sight path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.