Respiratory obstruction removal device
US12239343B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2023 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Nov 15, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1032
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A respiratory obstruction removal device, which includes a face mask and a negative pressure generating device. The negative pressure generating device includes a grip section, an extendable tubular body, and an annular interface, connected in sequence. The extendable tubular body has a variable volume cavity. The face mask includes an upper part that fits with the annular interface, a lower part that corresponds to a face of a patient, and a connecting body that links the upper and lower parts. The respiratory obstruction removal device also includes a first one-way valve located on the annular interface and a second one-way valve for unidirectional expulsion of gas to the outside. The grip portion and the extendable tubular body are detachably connected. This design is efficient and easy to carry and transport, suitable for emergency use in different scenarios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.