초록 ▼

A liquid level sensing and monitoring system for a medical fluid infusion system has an IV spike with a pressure sensor which contacts fluid in an infusion container such as an IV bag or bottle. When an adequate amount of fluid is in the container, the resulting pressure on the sensor is at a relati

A liquid level sensing and monitoring system for a medical fluid infusion system has an IV spike with a pressure sensor which contacts fluid in an infusion container such as an IV bag or bottle. When an adequate amount of fluid is in the container, the resulting pressure on the sensor is at a relatively high level; however, when the fluid reservoir is nearly depleted, the pressure on the sensor falls to a low level, thereby activating the sensor and associated control circuitry which operates an alarm or warning indicator. In lieu of the pressure sensor, the device may use a resistive or capacitive sensor. When the liquid level falls below the electrical sensor, its state changes, and the alarm circuitry is activated.

대표청구항 ▼

A fluid level monitoring system for a liquid container, said system comprising: a pressure sensor operatively connected to an outlet of a liquid container, said pressure sensor receiving pressure exerted by liquid in said container and producing a signal indicative of a pressure levels; an alarm res

A fluid level monitoring system for a liquid container, said system comprising: a pressure sensor operatively connected to an outlet of a liquid container, said pressure sensor receiving pressure exerted by liquid in said container and producing a signal indicative of a pressure levels; an alarm responsive to said signal for providing at least one of a visual and an audible indication of said pressure level; and a spike having a first tube connecting a first inlet port to a first outlet port, said pressure sensor being operatively connected to said first outlet port.