Fluid monitoring device

US7327273B2 · kind B2 · utility

Inventors

• Orlando Hung · Halifax, CA
• Peter Hodges Gregson · Halifax, CA
• David Cecil Roach · Halifax, CA

Key dates

• Filing date: Feb 11, 2005
• Grant date: Feb 5, 2008
• Expiry date: Mar 16, 2026

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M39/285
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

This invention relates to a device to monitor the administration of a fluid through a conduit, such as intravenous fluid, and detect the completion of fluid delivery by monitoring the fluid level inside a chamber. The device will monitor, through an optical fluid sensor comprising a radiation source, two sensors, a logic means, and an indicating means, the bottom half of any “user supplied” drip chamber that is normally full during the administration of fluids. When the fluid level in the chamber drops below a predetermined level, the indicating means will initiate an electromechanical device that releases a pinching device to occlude the conduit. The pinching device is a rotary pincher that derives its force from a torsion spring and is held in the open position by the electromechanical device.