Inflatable support
US8087113B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2008 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Sep 16, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/34
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An alternating pad comprises a first set and a second set of alternately inflatable cells. Both sets of inflatable cells are supplied with air from a pump via a rotary valve. A sensor is positioned under the pad to receive pressure exerted by a patient upon movement and to be compressible relative to the applied pressure. Any change in patient position or movement will cause an alteration in the airflow in the sensor pad tube and will reduce or increase the differential pressure measured at the pressure transducer. Based on this feedback the microprocessor directly controls the power level to the pump and increases or decreases the air flow to the cells to alter the amplitude of the cells and also controls the timing of the rotary valve to change the timing of the inflation and deflation cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.