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research-article

Design of a novel, adjustable flow rate, reusable, electricity-free, low-cost syringe infusion pump

[+] Author and Article Information
Dylan Guelig

PATH, 2201 Westlake Ave #200, Seattle, WA 98121
dylanguelig@gmail.com

James Bauer

PATH, 2201 Westlake Ave #200, Seattle, WA 98121
james.francis.bauer@gmail.com

Alec Wollen

PATH, 2201 Westlake Ave #200, Seattle, WA 98121
awollen@path.org

Chelsea Schiller

PATH, 2201 Westlake Ave #200, Seattle, WA 98121
cschiller@path.org

Jill Sherman-Konkle

PATH, 2201 Westlake Ave #200, Seattle, WA 98121
jshermankonkle@path.org

Anthony Roche

Harborview Medical Center, PO Box 356540, Seattle, WA 98104
aroche@u.washington.edu

Karl Weyrauch

Pygmy Survival Alliance, 4545 49th Ave NE, Seattle, WA 98105
karlweyrauch@hotmail.com

Mike Eisenstein

PATH, 2201 Westlake Ave #200, Seattle, WA 98121
meisenstein@path.org

1Corresponding author.

ASME doi:10.1115/1.4037935 History: Received February 15, 2017; Revised August 31, 2017

Abstract

We present a proof-of-concept design and preliminary data to demonstrate a novel syringe infusion pump that is low cost, nonelectric, reusable, and adjustable. This device addresses the need for infusion therapy in low- and middle-income countries (LMIC) where intermittent electrical power precludes the use of conventional electronic infusion pumps and limited financial resources make high costs of disposable infusion pumps impractical. Our design uses a pneumatically pressurized, hydraulic (air over oil) drive piston coupled to a closed-circuit flow restriction to drive a syringe plunger at a constant velocity, thus providing a constant volumetric flow rate to the patient. The device requires no proprietary or precision consumables, significantly reducing treatment costs compared with other methods. The highly adjustable device provides constant flow rates across the range of 0.5 mL/hr to 8 mL/hr when used with a 30-mL syringe. The user interface is simple and intuitive; the hardware is robust and portable. This novel technology platform has broad applications in addressing priority health needs in LMIC.

Copyright (c) 2017 by ASME
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