Fluid ejection device and medical instrument
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United States of America Patent
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Sep 6, 2016
Grant Date -
Dec 18, 2014
app pub date -
Sep 3, 2014
filing date -
Oct 12, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fluid ejection device includes a pulsation generator which converts a fluid into a pulsed fluid, a fluid supply unit (supply pump) which supplies the fluid to the pulsation generator, an ejection tube which has an ejection opening communicating with the pulsation generator, a suction tube into which the ejection tube is inserted with play, a suction channel provided between the suction tube and the ejection tube, a suction opening provided at an end of the suction channel in a vicinity of the ejection opening, and a suction unit (suction pump) which sucks fluid in such a manner that the fluid introduced from the suction opening passes through the suction channel. The ejection opening is held by an inner circumferential part of the suction opening. According to this structure, vibration of the ejection tube in the vicinity of the ejection opening can be reduced.
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Family
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