A Portable Needle-free Jet Injector Based on a Custom High Power-density Voice-coil Actuator

Author

Taberner, Andrew J. ; Ball, Nathan B. ; Hogan, N. Catherine ; Hunter, Ian W.

Author_Institution

Dept. of Mech. Eng., MIT, Cambridge, MA

fYear

2006

fDate

Aug. 30 2006-Sept. 3 2006

Firstpage

5001

Lastpage

5004

Abstract

We have constructed a portable needle-free drug injection (NFI) device based upon a custom voice-coil linear actuator. Our actuator is optimized to provide high instantaneous force (>200 N) and power (4 kW) while still allowing a total stroke of 25 mm. The actuator is relatively inexpensive, compact, and lightweight, allowing it to serve as the force generator in a portable, reusable, handheld NFI system. The actuator is capable of accelerating liquid drug in quantities of up to 250muL to a speed of more than 200 ms^-1. The repeatability of a 50muL volume ejection is better than plusmn1muL

Keywords

actuators; biomedical equipment; drug delivery systems; 4 kW; high power-density voice-coil actuator; portable needle-free drug injection device; portable needle-free jet injector; Acceleration; Cities and towns; Drug delivery; Hydraulic actuators; Mechanical engineering; Monitoring; Orifices; Pharmaceutical technology; Pressure control; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE

Conference_Location

New York, NY

ISSN

1557-170X

Print_ISBN

1-4244-0032-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2006.260243

Filename

4462926