Chemical pump housing for negative pressure system
US11083833B1 · kind B1 · utility
1Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2020 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Feb 24, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2209/088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A chemical pump assembly useful for negative pressure therapy includes a chemical pump housing having an inner chamber, a reactor located within the inner chamber, an opening provided in the chemical pump housing, a first pull tab which extends from the inner chamber to ambient through the opening, and a removable layer connected to the first pull tab. The reactor is configured to react with a selected gas found in air so as to consume the selected gas when exposed to air in the inner chamber. The removable layer shields the reactor from air in the inner chamber atmosphere until the removable layer is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.