Apparatus for controlling cuff pressure in an endotracheal tube
US6647984B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 15, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2016/0027
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus (1) for controlling pressure in a cuff (2) of an endotracheal tube (3) a pole mountable housing (25) within which an inflating medium supply pump (30) is located for supplying inflating medium to the cuff through a communicating tube (18) integral with the endotracheal tube (3) and a delivery tube (37) from the apparatus (1). A pressure transducer (28) connected to the endotracheal tube (3) by a connecting tube (29) monitors the pressure of the ventilating medium in the endotracheal tube (3) for determining transitions from the inspiratory to the expiratory phases of a breathing cycle. A microcontroller (27) controls the supply pump (30) for supplying the inflating medium to the cuff (2) at a first pressure level during the inspiratory phase of each breathing cycle and at a lower second pressure level during the expiratory phase of each breathing cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.