Apparatus and method for metered dispensing of a microfluidic amount of fluid in the picoliter and microliter range and hand-held device for locally piercing human or animal skin
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United States of America Patent
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May 30, 2023
Grant Date -
Jun 24, 2021
app pub date -
Dec 18, 2020
filing date -
Dec 20, 2019
priority date (Note) -
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Abstract
Metered dispensing of a microfluidic amount of fluid from a reservoir comprises a pressure device which applies a discharge pressure for fluid ejection via a discharge line through a valve arrangement. The valve device has a first valve with a minimum closing time and a second valve with a minimum opening time. A control device provides control signals for operation for metered dispensing of the amount of fluid as follows: a shortened minimum opening time for freeing the discharge line for the fluid flow, which time is shorter than the minimum opening time of the second valve; and a shortened minimum closing time for closing the discharge line for the fluid flow, which time is shorter than the minimum closing time of the first valve. Furthermore, a hand-held device for locally piercing human or animal skin is disclosed.
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