Automatic infusion-monitoring instrument
US6337631B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Mar 12, 2001 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Mar 12, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3389
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An automatic infusion-monitoring instrument includes a clip adapted to clamp a flow-indicating cylinder of an infusion set corresponding to a liquid level in the cylinder that keeps unchanged when there is sufficient amount of infusion liquid in the infusion set, a floater pre-disposed in the flow-indicating cylinder to move upward and downward along with the liquid level in the flow-indicating cylinder, a detecting unit having an emitter and a receiver mounted in the clip to normally face the floater, and an alarm unit electrically connected to the detecting unit via a conducting wire. When the liquid level in the flow-indicating cylinder lowers so that the floater is moved to locate below the emitter and the receiver and no longer blocks the wave emitted by the emitter, the alarm unit is actuated to emit sound, voice, light or flash as a warning signal of running-out infusion liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.