A puncture apparatus is disclosed, which includes a first apparatus, a second apparatus, and an apparatus main body. The first apparatus includes a puncture needle assembly and a support member that supports the puncture needle assembly. The puncture needle assembly includes an outer tube curved into a circular arc shape and an inside structural body composed of a needle body and an implant. Two ultrasonic sensors are placed at the distal portion of the outer tube. The second apparatus can include a vaginal-insertion portion, a urethral-insertion member having a urethral-insertion portion, and an interlock portion that interlocks the vaginal-insertion portion with the urethral-insertion member. Reflective portions that reflect ultrasound are provided on the urethral-insertion portion and the vaginal-insertion portion, respectively.
