| 摘要 |
A system for monitoring the location of a tube, especially a feeding tube. The system comprises an antenna located at an outlet of the tube; a wireless transmitter coupled to the antenna; and a sensor co-located with the antenna and arranged to generate an output which indicates at least one sensed characteristic, for example, pH level, of the tube's environment. The system includes a remote receiver device for receiving wireless signals, the receiver device including means for determining the strength of said received wireless signal, and means for determining said sensor output from said received wireless signal. |
