Method of manufacturing an anesthesia face mask
US11744975B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2019 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Dec 22, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0606
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods of manufacturing a mask include: providing a shell having an inlet formed on a body of the shell and a flange formed around a lower end of the body, the flange forming a surface on a bottom thereof; providing a first film substrate; providing a second film substrate; bonding the first film substrate to the second film substrate around an outer edge and around an inner edge shaped to fit around a nose and mouth of a patient; cutting the first film substrate and the second film substrate around the outer edge and the inner edge of the first film substrate and the second film substrate. The bonded and cut first film substrate and second film substrate form a first sheet that is joined to a second sheet. The shell is joined to the first sheet at the surface formed on the bottom of the flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.