Positioning and marking device for ultrasound-guided puncture

The invention discloses a positioning and marking device for ultrasound-guided puncture, and relates to the technical field of medical apparatus. The positioning and marking device includes a contacthead; a universal connection head is embedded in one surface of the contact head; a liquid discharging flexible pipe penetrates through one surface of the universal connection head and one surface ofthe contact head; a marking pipe is fixedly connected to the peripheral side face of the universal connection head; a fixed ring and a limit ring are fixedly connected to the inner surface of the marking pipe; a liquid discharging hard pipe penetrates through one surface of the fixed ring; and a force application ring is fixedly connected to the peripheral side face of the liquid discharging hardpipe. According to the positioning and marking device for ultrasound-guided puncture, by designing connection between the universal connection head and the marking pipe, the contact head and a notch,on one hand, the positioning