| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To avoid the deformation or destruction of a needleless syringe if a material aimed at injection by this syringe is injected through a plastic nozzle removably attached to the syringe. <P>SOLUTION: The nozzle is removably attached to its holding means. The nozzle includes a first large-diameter flow path provided with an inlet port, a second small-diameter flow path provided with an outlet port, and a connection flow path to connect these first and second paths. The nozzle body is a contact means, which gets into contact with the holding means so that its injection port can be exposed in the face of the injection region. This contact means has a flat or curved contact part that comes from the nozzle body side and extends crossing the prescribed flow direction of the material to be injected under pressure. In the flow direction of the material to be injected under pressure, this contact means is arranged somewhere on the side of the discharge port from a prescribed position in the connection flow path in the vicinity of a place between the connection flow path and the second flow path. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
