Visual inflation pressure indicator and surgical tube including the indicator
US6530898B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2000 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Apr 20, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0001
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides an indicator for visually indicating a pressure level of a fluid in a pressure source. The indicator comprises an inflatable body having a notched section with opposing edge portions that are separated by a gap when the inflatable body is in an uninflated condition. The inflatable body further includes a port for connecting the inflatable body to the pressure source whereby upon inflation of the inflatable body, there is relative movement of the opposing edge portions in a direction so as to decrease the size of the gap and thereby indicate that a predetermined pressure has been reached in the pressure source. The indicator is particularly for indicating whether a predetermined pressure has been reached in an inflation cuff of an endotracheal tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.