Apparatus and method for wound treatment employing periodic sub-atmospheric pressure
US8377016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2007 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Nov 9, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/96
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tissue treatment apparatus and method are provided for treating tissue by the application of the time-varying sub-atmospheric pressure. The apparatus includes a cover adapted to cover a wound and adapted to maintain sub-atmospheric pressure the site of the wound. The apparatus further includes a source of suction configured to generate a time-varying sub-atmospheric pressure having a periodic waveform comprising a gradual change in pressure. The suction source cooperates with the cover to supply the time-varying sub-atmospheric pressure under the cover to the wound. The time-varying sub-atmospheric pressure may vary between a first pressure value below the inherent tissue tension of the wound tissue and a second pressure value above the inherent tissue tension of the wound tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.