Hogan NC, Hunter IW. Needle-free small-volume liquid injection system powered by a rotary actuator.
ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017;
2017:292-295. [PMID:
29059868 DOI:
10.1109/embc.2017.8036820]
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Abstract
Controllable jet injection could provide a fast, repeatable method for delivery of small volume, high viscosity drugs to the dermis. We have developed a compact, lightweight jet injector that uses a small commercial rotary motor and differential screw to create a jet of fluid with sufficient force to deliver drug into tissue. Clear tissue analogue and ex vivo tissue were used to demonstrate repeatable delivery of <;10 μL of fluid using the device. The fluid when forced through a narrow orifice (108 μm) reaches a velocity of >250 m/s with an injection time of <;3 ms.
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