Invention Grant
- Patent Title: Fluid ejection device and medical instrument
- Patent Title (中): 流体喷射装置和医疗器械
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Application No.: US14475884Application Date: 2014-09-03
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Publication No.: US09433434B2Publication Date: 2016-09-06
- Inventor: Hideki Kojima , Atsuya Hirabayashi
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Workman Nydegger
- Priority: JP2010-229325 20101012
- Main IPC: A61B17/3203
- IPC: A61B17/3203 ; A61B17/00

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.
Public/Granted literature
- US20140371773A1 FLUID EJECTION DEVICE AND MEDICAL INSTRUMENT Public/Granted day:2014-12-18
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