Inventor

TIAN ZHIJUN

CN2 patents

Patents

2 patents

US12390186B2Aug 19, 2025

Ultrasound-induced positioning type puncture assembly and sleeve type small needle knife

BEIJING LONGFU HOSPITAL0 citations37

US12178449B2Dec 31, 2024

Lateral sleeve pipe drill and operating method

BEIJING LONGFU HOSPITAL0 citations37