| 摘要 |
A drop indicator for use with a drip chamber, the drop indicator including a circuit, a switching element coupled to the circuit, wherein passage of a drop through the switching element causes the switching element to switch the circuit, an indicator coupled to the circuit for providing an indication upon switching of the switching element, and a power source coupled to the circuit for energizing the indicator, wherein the circuit, the switching element, the indicator and the power source are mounted as part of the drip chamber. |
