Alternating pressure cushion with inflatable lumbar support
US6823549B1 · kind B1 · utility
Inventors
Key dates
| Filing date | May 14, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | May 14, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G5/1043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The alternating pressure cushion is a cushion for prevention and treatment of decubitus ulcers in hemodialysis patients, patients who are wheelchair bound, and other persons confined in a seated or reclined position for a prolonged period. The alternating pressure cushion has a back cushion section, a seat cushion section including an inflatable lumbar support, and a leg cushion section, each section having a plurality of air bladder networks. The air bladder networks are arranged so that each provides support when inflated. When one air bladder network is inflated to support the patient, the other air bladder is deflated to relieve pressure from areas of the patient's body. Alternately inflating and deflating the air bladder networks supports the patient without prolonged pressure points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.