DRUG INJECTION DEVICE AND METHOD
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United States of America
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Issued Date -
Feb 13, 2025
app pub date -
Oct 28, 2024
filing date -
Oct 28, 2024
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Abstract
A drug injection device includes a drug injector configured to electrochemically drive an electroosmotic pump to suck a drug from a drug storage and discharge an sucked drug to an injection target, and a controller configured to output, to the drug injector, a control signal corresponding to an injection sequence for defining an operation of the electroosmotic pump, wherein the injection sequence includes a pulse block that defines one of a voltage pulse and a current pulse to be applied to the electroosmotic pump, the pulse block defines a pair of pulse signals including a forward pulse and a reverse pulse that are applied to the electroosmotic pump to alternately generate negative pressure and positive pressure, and the electroosmotic pump sucks and discharges a drug by alternately generating the negative pressure and the positive pressure in the pulse block.
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