Invention Application
US20140378947A1 WATER JET SPRAY NOZZLE, WATER JET SPRAY DEVICE, CLEANING METHOD USING WATER JET, GASTROINTESTINAL TRACT CLEANING DEVICE, AND GASTRIC WALL CLEANING DEVICE
审中-公开
水喷射喷嘴，水喷射装置，使用水喷射清洁方法，气体捕捉清洁装置和气体清洁装置
- Patent Title: WATER JET SPRAY NOZZLE, WATER JET SPRAY DEVICE, CLEANING METHOD USING WATER JET, GASTROINTESTINAL TRACT CLEANING DEVICE, AND GASTRIC WALL CLEANING DEVICE
- Patent Title (中): 水喷射喷嘴，水喷射装置，使用水喷射清洁方法，气体捕捉清洁装置和气体清洁装置
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Application No.: US14378141Application Date: 2013-02-14
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Publication No.: US20140378947A1Publication Date: 2014-12-25
- Inventor: Hitoshi Soyama , Katsunori Ami , Matsuo Yamamoto
- Applicant: TOHOKU UNIVERSITY , SHOWA UNIVERSITY
- Priority: JP2012-029019 20120214
- International Application: PCT/JP2013/053480 WO 20130214
- Main IPC: A61M3/02
- IPC: A61M3/02 ; A61B1/12
Abstract:
A water jet spray nozzle has a flow path including, from the upstream side to the end of the flow path, a small-diameter portion having a small inside diameter, an expanded portion having a larger inside diameter than the small-diameter portion, and a jet orifice having a smaller inside diameter than the expanded portion. The water jet spray nozzle is configured such that water passing through the flow path with a pressure of 0.2 to 0.6 MPa is retained in the expanded portion to as to generate cavitation bubbles from the small-diameter portion to the expanded portion. The inside diameter of the small-diameter portion § is 0.5 to 0.7 mm while the inside diameter of the jet orifice is 1 to 1.3 times larger than that of the small-diameter portion.
Information query
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