DRUG INJECTION DEVICE AND METHOD

WIPO Patent Application WO/2024/048939

A1

A drug injection device according to the present invention comprises: a drug injector that electrochemically drives an electroosmotic pump so as to intake a drug from a drug storage unit, and discharges the intaken drug to an object to be injected; and a control unit that outputs, to the drug injector, a control signal corresponding to a dose-based injection sequence for immediately driving the electroosmotic pump in an injection mode, wherein the dose-based injection sequence includes at least one pulse block that defines a voltage pulse or a current pulse to be applied to the electroosmotic pump, each of the pulse blocks defines a pair of pulse signals including a forward pulse and a reverse pulse, which are applied to the electroosmotic pump so as to alternately generate negative pressure and positive pressure, and the electroosmotic pump alternately generates the negative pressure and the positive pressure for each pulse block so as to intake and discharge the drug.

JPS63286166	INJECTION PEN
JP4154109	Syringe pump
WO/2017/046358	OPHTHALMIC INJECTION DEVICE

SHIN WOONSUP (KR)
ZHU ENHUA (KR)
SHIN YEONG JONG (KR)

PCT/KR2023/008824

March 07, 2024

June 26, 2023

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CAREMEDI CO LTD (KR)
UNIV SOGANG RES & BUSINESS DEVELOPMENT FOUND (KR)

A61M5/145; A61M5/142; A61M5/172; G16H20/17; G16H40/63; G16H50/20

KR20180028232A	2018-03-16
KR20190000760A	2019-01-03
KR102115120B1	2020-05-26
KR20030047971A	2003-06-18
KR101106286B1	2012-01-18

MAPS INTELLECTUAL PROPERTY LAW FIRM (KR)

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