PUNCTURE NEEDLE DEVICE FOR ULTRASONIC ENDOSCOPE

摘要

PROBLEM TO BE SOLVED: To provide a puncture needle device for an ultrasonic endoscope capable of connecting the puncture needle device to a mouthpiece of the ultrasonic endoscope with small rotation even when a length of an axial direction of a screw formed on the mouthpiece of the ultrasonic endoscope and the puncture needle device is increased and positioning a knob member projected on a peripheral surface of the puncture needle device reliably at a desired position when the puncture needle device is mounted on the ultrasonic endoscope.;SOLUTION: The puncture needle device for an ultrasonic endoscope includes: body parts 31, 39 and 50 forming a double threaded screw formed of a first screw groove 32A and a second screw groove 32B to which in a first projection 18A and a second projection 18B formed on the mouthpiece of the ultrasonic endoscope are capable of screwing respectively; and an index 38 formed in the body parts located in the same circumferential direction as an endoscope side index 22 when the first projection is screwed to an inlet side end part 32A1 of the first screw groove and the second projection is screwed to an inlet side end part 32B1 of the second screw groove.;COPYRIGHT: (C)2013,JPO&INPIT