Optimizing power transfer to negative pressure sources in negative pressure therapy systems
US12268577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Nov 27, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8212
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a driving circuit that supplies a driving signal to a negative pressure source to cause the negative pressure source to provide negative pressure via a fluid flow path to a wound dressing. The apparatus furthers include a controller that adjusts a frequency of the driving signal supplied by the driving circuit according to a comparison of a previous magnitude and a subsequent magnitude of the driving signal while the negative pressure source provides negative pressure. The transfer of power to the negative pressure source can thereby be tuned to maximize an amount of power transferred to the negative pressure source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.