| 摘要 |
PROBLEM TO BE SOLVED: To provide a puncture needle which is clearly made into an image even when an angle between the puncture needle and a radiation direction of a detection wave of ultrasonic waves of an ultrasonic probe etc. is small. SOLUTION: According to one embodiment, the ultrasonic puncture needle for puncturing observing a puncturing state by ultrasonic images has a needle point formed on the tip end of the puncture needle body, wherein at least one corner cube mirror 12 due to a trigonal pyramid shape recess is formed at the predetermined position of the puncture needle body. Because an ultrasonic wave oscillated from an ultrasonic probe is reflected by the corner cube mirror 12 to be returned to the ultrasonic probe 20, even when an angle formed by a radiation path of the ultrasonic wave and the axis of the puncture needle is small, the reflection wave goes in a direction same as the incoming direction of the ultrasonic wave to be securely returned to the ultrasonic probe. COPYRIGHT: (C)2011,JPO&INPIT
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