Resuscitator, respirator and/or incubator
US4481938A · kind A · utility
Inventor
Key dates
| Filing date | Oct 16, 1981 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Oct 16, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G11/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A resuscitator or respirator, especially designed for newborn infants, has a pressure chamber divided by a partition into separate gas-tight head and body compartments. The partition has a neck-receiving opening provided with neck-engaging sealing means. Means are provided for automatically admitting an oxygen-containing breathable gas alternately to one of the compartments under a predetermined positive pressure and then to the other of the compartments under another predetermined positive pressure while alternately creating a predetermined negative pressure in the other compartment and then another predetermined negative pressure in the one compartment. The time interval of each of the alternate admissions and negative pressure creations is predetermined to thereby perform respiratory cycles for a patient in the chamber with the duration of the inspiratory portion and of the expiratory portion of each cycle being predetermined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.