Systems and methods for driving negative pressure sources in negative pressure therapy systems
US11305047B2 · kind B2 · utility
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140References
18Claims
0Family size
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Key dates
| Filing date | May 3, 2017 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Mar 26, 2039 |
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 source of negative pressure, a coupling circuit, a driving circuit, and a controller. The driving circuit supplies a driving signal to the source of negative pressure via the coupling circuit to cause the source of negative pressure to provide negative pressure to a wound dressing. The coupling circuit includes an inductive reactance that limits a rate of change over time of the driving signal. The controller controls the driving signal supplied by the driving circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.