| 摘要 |
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. |
