Bacteria-tight system for artificial respiration
US4224939A · kind A · utility
Inventor
Key dates
| Filing date | Jun 6, 1978 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Jun 6, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/1055
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An appliance for establishing a bacteriologically safe connection between a respirator and an endotracheal tube comprises a head fitting, which is adapted to be mounted on the endotracheal tube. A flexible tube for supplying inhalable gas and a flexible withdrawing tube for withdrawing exhaled air are connected to said head fitting. An exhalation valve is incorporated in the withdrawing tube and is incorporated by a controller in step with the artificial respiration. An inflatable bag, which is manually operable to effect artificial respiration, is connected by a tee fitting to the supply tube, which is connected by a bacteria filter and the controller to the respirator. The inflatable bag is provided with a sensor, which is connected by a signal line to the controller and causes the latter to close and open the exhalation valve in step with the manually effected artificial respiration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.