| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a puncture needle device for an ultrasonic endoscope capable of immovably connecting it to the mouthpiece of the ultrasonic endoscope despite simple structure. <P>SOLUTION: The puncture needle device for the ultrasonic endoscope includes: elastic opening and closing pieces 37, 38 formed in the end part of a tubular connecting part 31 and elastically deformable in a radial direction; a slide regulating part 39 allowing relative slide of the mouthpiece 17 relative to the tubular connecting section when the elastic opening and closing pieces are in a closed condition and regulating the relative slide of the mouthpiece when the elastic opening and closing pieces are located in a closed condition; a revolution-stopped groove 40 contacting with the peripheral face of a collar part when the elastic opening and closing pieces are in the closed condition; and an annular lock member 50 capable of rotatably moving to an unlock position allowing the deformation of the elastic opening and closing pieces to an opened condition and to a lock position for holding the elastic opening and closing pieces in the closed condition. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
