Infusion pump for at least one syringe

US5814015A · kind A · utility

Assignee

• Harvard Clinical Technology, Inc. · US

Inventors

• Diane A. Gargano · Cambridge, US
• Eric John Flachbart · Hamilton, US
• Barry Cowen · Waltham, US
• Monica Duh · Lincoln, US
• John Rudser · Miami, US
• Ken Zhen · Lincoln, US
• Lynn Noble · Lexington, US
• Julian Warhurst · Ashland, US
• Luis Pedraza · Dedham, US

Key dates

• Filing date: Feb 24, 1995
• Grant date: Sep 29, 1998
• Expiry date: Feb 24, 2015

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M5/16827
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A processor driven syringe pump for one or more, typically two syringes, which are held vertically in corresponding pumping stations of a housing unit which itself is typically suspended from an IV pole. The pump features a central display having portions corresponding to each of the syringes operated by the pump. A data entry knob cooperative with a display processor, causes a cursor issue on the display to step through and choose the menu selections. A function knob is operative to select five operating states including: Purge, Setup, Stop, Run and Bolus in a virtual or software driven manner. The syringe holding station includes a pusher assembly having plunger clamp assembly and a load cell to measure force exerted on the plunger flange. An actuation pad and associated linkage provides for easy syringe flange capturing, while a syringe barrel clamp provides for easy syringe loading and secure syringe barrel positioning for many sizes of syringe. The pump operates in a rate, volume per time, or pharmacokinetic mode. The software provides a number of feedback warnings and alarms. The pump may be provided with a drug library. The syringe plunger is driven into the syringe barrel b…